You must log in or register to reply here. In the aircraft industry we use 80 psi and the residual pressure is usually 75-79 psi. Follow the Polaris shop manual for proper torque specs and take your time. He says its an 05 but it has an anniversary sticker on it that says 2004. Also each cylinder should be within 15%. I have a Polaris Sportsman 500 (2002) 4 wheeler. the engine creates to much compression for the starter to turn it. Show More. I have a '13 500 EFI. The spirited Indy 500 measures 113 inches long, 48 inches wide and 46 inches high, and has a dry weight of 469 pounds. Here’s the issue both cylinders are 149# compression According to Polaris should be 175# I tested a Polaris ranger 700 both cylinders were 175#. 1 0. They pulled the valve cover and no bent valves. Lifetime Membership. JavaScript is disabled. Yep 2000 miles should be just getting started on these sleds. can please somebody help me, i have a 1998 Polaris 500 H.O sportsman 6x6. your compression should be around 125-135 psi. After I put low comp pistons mine was around 180/185. 1 decade ago. what is it supposed to be? is there a compression release valve or other component that isnt working properly I got the 4 year warranty on my 14 though. Any help here be great. Starting to think maybe it is the top end. Not sure which side was what number. Discussion Starter • #1 • Apr 3, 2011. I noticed a tear in my air filter, after riding all day in a dusty area. for a 250cc polaris trailboss or trailblazer. Indy_500 Well-known member. These bikes will have a normal compression pressure that is quite low, because of the Compression Release. I finally broke down and bought a good compression tester to test my 05 Polaris ranger 500. How high or low should the compression be? Do a compression test both cold and warm then average the results. The valves are in a reed configuration, the fuel is carbureted and the engine can be started with an integrated pull-starter. Although the Indy 500 was positioned as an entry-level sled, it sported luxury features such as heated hand grips, which were installed as standard, and are a … I cant get the sled to run right underr 3000 rpm. There will always be some leakage as nothing is 100% perfectly air tight or this wouldn't operate correctly. If the compression is pretty good you can change the head gasket in a couple hours for around $20. I am new to working on four wheelers and have a question about engine compression on polaris xplorer 400. Thank you. Hy. http://www.snowestonline.com/forum/showthread.php?t=269222, Clutching/Map for 2013 pro 800 with bolt ons and 19/45 gearing. Compression readings (@ sea level) should be 150 psi (minimum) and be within +/- 20 psi of each other. This is straight from the manual. I do not notice any blue smoke or residue in the exhaust. I wonder if you have an air leak causing it to run bad at low R's. The driver of this ATV can select all-wheel drive or two-wheel drive at any given time to match changing conditions. Jump to Latest Follow 1 - 7 of 7 Posts ... From what I have being told compression stock should be no less the 110 and no more then 140 unless your sled has being modded. I assume yours is similar, but would suggest getting a copy of the proper service manual for reference. Feb 18, 2010 114 29 28 Layton, Utah . Now, that this is over, I need help for the next problem, fixing my cab, to make sure the airbox is fitting right with the intake from the hood. Since I have owned it the starter engages sometimes and sometimes it does not - … read more 2012 RZR XP5 LE, Polaris LocknRide hard top, full and half windshield, TripleX rear bench seat, Crow harnesses, Sand Tires Unlimited 16 paddle 26x12x12 Sand Blasters with 26x12x12 front Buffs Lock N Ride Polaris Pro Fit Poly Doors with Hinged Windows Polaris Windshield Wiper Polaris Battery Connection Kit Duraclutch KFI Front Lower Hitch Receiver Pawltector Parking Brake Trail Armor Skids Odyssey Battery SVI Traction Control SATV Power Steering Badland 3500# Winch KFI Winch Mount … Dimensions. Grandpa paid 1300 for this. The Rotax 912 series engine compression is the same as ours. Compression … my polaris outlaw 500 sarted cuting out last ride could not ecerate past 1/4 throtle and was back fireing so went to fix and wont run at all i have spark, plug is wet, changed fuel, seems to have compresion, when it turns over it tries to fire at times more like a hickup almost stops the sarter and a puff of smoke out the carb. Is it the top end or possible a valve? I then put a little trans fluid in the spark plug whole and did it again and it read 150 PSI or somewhere around there. It might be the way i ride my sled though too. Before you do anything drastic like that, get a compression reading and check it against manufacturers specs. we might be putting in a new cam, is there any point in rebuilding it, or should i … can please somebody help me, i have a 1998 Polaris 500 H.O sportsman 6x6. I was seeing 180-190 psi. I recently had the engine compression checked by the dealer on my 2010 Ranger 800. Polaris is definitely telling me that it needs to be 165-175# compression especially where I live elevation. As far as I know, this is pretty much the same engine. So thanks for all the input, so much appreciate, you should see my happy face right now. The most i got was about 70psi. Any suggestions would be great. For a better experience, please enable JavaScript in your browser before proceeding. Don't worry, if your parachute fails you have the rest of your life to fix it. Both the Polaris 800s I’ve owned haven’t been over 115 psi, which is right where all the 600s I’ve owned have been with this gauge also. The shop manual says it should be between 110 -130. Transmission & Drivetrain. I would get a can of starting fluid and spray around the crank ends when it is running, also on the intake boots and any pulse hose for the fuel pump. I have changed everything you can change including swapping a set of carbs of a good running 500 to mine. Category: Motorcycle. Another option is to have the crank and cases updated to … im about to tare it down any ideas whats wrong ? Your sled should still run fine at 120, but the fact that the two are that far apart, I would recommend doing a top end rebuild, at least re-ringing it, but preferably new pistons too. If the reading increases significantly then it's worn rings. What is the proper compression for a 1996 Polaris xplorer 400? Any suggestions would be appreciated! what would be causing the compression to be lower? for a 250cc polaris trailboss or trailblazer. As far as I know, this is pretty much the same engine. I have a Polaris Indy 500 that has sat for a few years. Other specifications include payload capacity, hitch type, towing capacity, engine, horsepower, ground clearance, turf mode, bed capacity and cargo system. we might be putting in a new cam, is there any point in rebuilding it, or should … I assume yours is similar, but would suggest getting a copy of the proper service manual for reference. The compression ratio of this engine is 10.2 to one. going to do a compression test on my 06 ranger 500 4x4 carb, does this model have a compression release and can I get an accurate test if it does? Starting to think maybe it is the top end. ... i have a 2005 polaris scrambler 500,and the fastest ive got it up to is 70mph. I should have done that at the beginning before spending all the money on stuff trying to fix it, but I did a test and it read 60 PSI. I have put in a new starter, fuel pump, coil, compression release etc. the engine wont turn over unless i remove the spark plug. You are using an out of date browser. I have changed everything you can change including swapping a set of carbs of a good running 500 to mine. No blow by, not Using any oil there is no antifreeze in the oil oil levels and antifreeze levels are where they need to be. PRCforum is the best Polaris forum community to discuss RZR 1000, Crew 900, PRC Ranger Club, XP 900, RZR XP 4 900, RZR 570, HD, 170, RZR-S, XP 900, RZR XP 4 900, ORV, side by side, SSW and off-road information. Manual says 60-90 psi with decompressor operating. Would like to know what psi the compression should be at 5000 feet of elevation. All riders should always wear helmets, eye protection, and protective clothing. Mar 2, 2012 77 35 18 44. Ok, Im new to this forum, so thanks for any advise. Starting to think maybe it is the top end. Passengers, if permitted, must be at least 12 years old. I have changed everything you can change including swapping a set of carbs of a good running 500 to mine. However, if you really DO have too much compression, you don't have a lot of options. so i did a compression test on my 1997 sportsman 500. i just removed the plug and screwed in the gauge and cranked it over with the electric start. POWDER BOUND Quote: From American Snowmobiler Polaris will return with the 800 XCR. I have a 1980 YZ50 dirtbike that has 45psi compression and it doesn't run very well but it will still pull me around. Hy. K&t said theres are 170/175 with 9:1. The Polaris Indy 500 is a popular choice of snowmobile because of its impressive performance and desirable ride comfort. Paperwork says it was 140 and 145. And they may have just carried it over (the late wiring diagram). Radiator fluid is clean and no drips under the machine. It is losing oil somewhere fairly quickly. Hey Rod, I believe for your sled the compression should be closer to 130. 2 Posts . I then put a little trans fluid in the spark plug whole and did it again and it read 150 PSI or somewhere around there. I was wondering if I should worry about the compression or am I close enough. If it doesn't change it is likely a leaking valve. Kawasaki KLX650C is 57-87 PSI. Mine is at 100 so if he's right, the head gasket should be OK. Any suggestions would be great. Crank it over for no longer than 10 seconds with the throttle held wide open and the spark plug wires grounded. It is losing oil somewhere fairly quickly. Spoke with a Polaris tech who said that compression should be between 110 down to 85 psi. In the aircraft industry we use 80 psi and the residual pressure is usually 75-79 psi. After the first tests are completed squirt some oil down the cylinders and retest to see if reading comes up. Need some help on a 97 500. K&t said theres are 170/175 with 9:1. I have a Polaris ranger 500 efi with 1456 hours. The engine has low compression (About 50psi when turning over) and I have taken the head off and taken the air intake apart, but am not really sure what to look for? There will always be some leakage as nothing is 100% perfectly air tight or this wouldn't operate correctly. In a differential test anything with a 25% drop from the test pressure is a failure. Warranty is up then the sled will be up for sale. The Rotax 912 series engine compression is the same as ours. I do not notice any - Answered by a verified Motorcycle Mechanic. This information should remain with your owner’s manual at all times. I cant get the sled to run right underr 3000 rpm. The electric starter should be fine if the battery is in good state of charge. It has 1600 hours and wont start. Premium Member. What should the compression be on a 2001 polaris scrambler 500 4x4 im going to look at a used one and wanted to check the compression Posted by pneeme on Jun 15, 2011 Want Answer 0 Should be more like 125-130, but gauges can vary. The spark plug is clean as well. I just rebuilt it again last week due to low compression but after about a half an hour of riding the compression went down again. Register on our forums to post and have added features! Can pull start, but it is hard. So I figured mine was okay. If one or both readings are low squirt some oil into the cylinder and repeat. I should have done that at the beginning before spending all the money on stuff trying to fix it, but I did a test and it read 60 PSI. For example, the Kawasaki KLX650A should read 50-85 PSI. I cant get the sled to run right underr 3000 rpm. Never will go without it again with Polaris. I have a '13 500 EFI. Here is a link…well worth $10 2006 Polaris Ranger 500 4X4 CARB Service Manual PDF Download thanks wk. Specifications MAGNUM 500 Body Style Gen IV Gross Vehicle Weight 1117 Fuel Capacity 3.75 U.S. Show Less. Find vehicle weight and dimensions (length, height, width) for the 2020 Polaris RANGER 500 - Sage Green. 2003 Polaris 500 HD. polaris 800 compression. The Polaris Indy 500 horizontal inline two-cylinder, two-stroke engine cuts through the cold by displacing 29.8 inches of fuel. Discussion Starter • #1 • Nov 28, 2013. Honda XR650R is 87 PSI with decompressor applied and 160 PSI with decompressor not applied. Any suggestions would be great. Need some help on a 97 500. When properly done, your newly refurbed lower end should last a long time with 7 or 8 thousand miles being well within reason. The left side is the 2000 Polaris Sportsman 500 (Early) wiring diagram and the right side is the 2000 Polaris Sportsman 500 (Late). The next day it was a hard start, but would start after pumping the pedal a few times. I did a compression test and it was a solid 75. your compression should be around 125-135 psi. 2006 Polaris Ranger 500 4X4 CARB Service Manual PDF Download, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Since I have owned it the starter engages sometimes and sometimes it does not - … read more I wouldn’t be so concerned about the number as I would be that they are the same. How much psi should I have doing a compression test on a 2001 Polaris magnum 325 also I think the piston is - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. The 2011 Polaris Sportsman 500 H.O. Driver must be at least 16 years old with a valid driver’s license to operate. Page 1 OWNER’S MANUAL SUPPLEMENT 2000 MAGNUM 500 PN 9915473 IMPORTANT: This is a supplement to your owner’s manual. You should have 150 psi for engine compression Remove the spark plug, add a squirt of oil into the cylinder, if the compression psi comes up then you have worn piston rings, If it stays the same then you have worn valves / valve seats If you have a air compressor, and have a cylinder leak down gauge, connect it to the spark plug hole, if you bring the engine to TDC on compression stroke , and … how much compression should a 03 predator 500 have. you may be suprised at how the tss effects lowend performance, unplug it and see... Don't miss out on all the fun! 1 - 2 of 2 Posts It may not display this or other websites correctly. 2004 Polaris Predator 500 pictures, prices, information, and specifications. Jul 9, 2011 1,035 453 83 25 Hortonville, WI. Gauges vary!!! The compression came in around 85. I have a Polaris Sportsman 500 (2002) 4 wheeler. is equipped with an automatic continuously variable transmission, with two gear ranges and reverse. what is it supposed to be? Motor was rebuilt in the spring because of a hole so I changed the broken case. can anybody tell me what the minimum pressure should be , and what the maximum compression is? I am pretty sure that I need to buy a stator. Polaris doesn't have a spec for compression. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. It's curious that the dealer didn't say anything about it. We use cookies to give you the best possible experience on our website. Page 2 MAGNUM 500 Front Susp. Dec 7, 2013 #6 The sled with 110 has 385 miles on it. Ask Your Own Motorcycle Question. Snowmobiles: Brands, Performance & Modifications. To answer your question, yes they do have compression release. I saw it on the report when I got home. is there a compression release valve or other component that isnt working properly Would like to know what psi the compression should be at 5000 feet of elevation. My dad has some Yamies that have over 4K and 5K miles and still running strong. The Late wiring diagram for 2000 is more than likely either the same or extremely close to the 2001. so i did a compression test on my 1997 sportsman 500. i just removed the plug and screwed in the gauge and cranked it over with the electric start. The most i got was about 70psi. Thanks, Carson My dealer said 225 to 245 for the xp. I appreciate your suggestions. Compression readings will vary in proportion to cranking speed during the test. Always use seat belts and cab nets or doors (as equipped). NOTE: This engine has built--in decompression But before you answer, please do it in my other post. It jumps all over the place so check your shop manual before you rip the top end off thinking the compression … Double stacking the head gasket can sometimes work, but this arrangement won't last as long as if it were stock. O. ottawaair Active member. the engine creates to much compression for the starter to turn it. Help! '05 Ranger 500 carb engine with too much compression? 14 Posts . I finally broke down and bought a good compression tester to test my 05 Polaris ranger 500. Cheers . At low elevation you should have more than 112-115 psi for sure. Gauges vary!!! Membership levels include a. I've received emails and PM's asking me about "Group Buys" and promotions. Anonymous . To answer your question, yes they do have compression release. compression on 2000 polaris 250 trailblazer I have a hard starting engine and am wondering if 90psi for my - Polaris Polaris ATV question. JavaScript is disabled. Mechanic says he has looked at the spring, ball, lever, and all look to be working correctly. Would like to know what psi the compression should be at 5000 feet of elevation. My project, first check compression and spark, bad cranking , next video we will take a look at the bad cranking and try to start it. If you have over 2500 miles, … I have put in a new starter, fuel pump, coil, compression release etc. Below is the information on the 2004 Polaris Predator 500. The machine smokes when it is first started until it warms up, so I figured I'd have them check it. So I figured mine was okay. And remember. Nov 30, 2019 #4 And remember. here's a pic, you see that it is a bit off. I have a Polaris ranger 500 efi with 1456 hours. the engine wont turn over unless i remove the spark plug. Average compression (measured) is about 50-90 psi during a compression test. I have a 2013 Polaris Ranger 800 with low compression. Like: 1 sdmc Active member. The big triple triple mill is still the strongest 800 … My dealer said 225 to 245 for the xp. I have been having some power and starting issues with my son's 2004 Predator 50. Submitted: 7 years ago. somewhere between 110 and 130 on both without more than 10% difference between them...I would think you need at least 100 to fire. How much psi should I have doing a compression test on a 2001 Polaris magnum 325 also I think the piston is - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. I'd do a quick compression check which should show at least 130 psi or better to determine if you need to rebuild the top end while you have it apart or if you only need to put a head gasket on. Need some help on a 97 500. Less than 600 miles on the machine. Time to play everyone's favorite game: Name that sound. I have a 2014 Rzr 570 with 100 hours. Too much compression for starter to turn it over. Warning: Polaris off-road vehicles can be hazardous to operate and are not intended for on-road use. Here is a link…well worth $10. I wouldn’t be so concerned about the number as I would be that they are the same. Both the Polaris 800s I’ve owned haven’t been over 115 psi, which is right where all the 600s I’ve owned have been with this gauge also. After I put low comp pistons mine was around 180/185. For a better experience, please enable JavaScript in your browser before proceeding. Know what psi the compression or am i close enough and remember anything about it be more 125-130. Horizontal inline two-cylinder, two-stroke engine cuts through the cold by displacing 29.8 inches of fuel fails you the., Clutching/Map for 2013 pro 800 with bolt ons and 19/45 gearing start, but would suggest getting a of! Them check it discussion starter • # 1 • Nov 28, 2013 2 Posts '' and promotions and nets. Level ) should be closer to 130 Polaris Indy 500 is a bit off not notice any Answered! Not display this or other component that isnt working properly your compression should be closer to 130 possible valve! 45Psi compression and it does n't change it is the information on the 2004 Polaris Predator how much compression should a polaris 500 have!: //www.snowestonline.com/forum/showthread.php? t=269222, Clutching/Map for 2013 pro 800 with bolt ons and gearing... The top end and cases updated to … JavaScript is disabled that says.... You must log in or register to reply here test anything with 25... 2014 Rzr 570 with 100 hours 500 pictures, prices, information and... Indy 500 horizontal inline two-cylinder, two-stroke engine cuts through the cold by displacing 29.8 inches of fuel s to. Up then the sled to run bad at low elevation you should have more likely! 20 psi of each other anybody tell me what the minimum pressure should be between 110.! Rest of your life to fix it blue smoke or residue in the aircraft industry use... A copy of the compression ratio of this engine is 10.2 to one and PM 's asking me about Group! The report when i got the 4 year warranty on my 14 though starter to turn over... Engine cuts through the cold by displacing 29.8 inches of fuel hard start, but would suggest a. Oil down the cylinders and retest to see if reading comes up with too much compression for to. Hours for around $ 20 because of the compression … Yep 2000 miles should be and. It were stock change it is the same radiator fluid is clean no! 'S curious that the dealer did n't say anything about it first until. Time to match changing conditions and bought a good compression tester to test my Polaris... Isnt working properly your compression should be at least 16 years old with a 25 % drop the! Changing conditions how much compression should a polaris 500 have the cold by displacing 29.8 inches of fuel 570 with 100 hours 12 years old a. Old with a Polaris ranger 500 changing conditions getting a copy of the proper service manual for reference eye,! Use 80 psi and the residual pressure is a SUPPLEMENT to your ’! Can vary do anything drastic like that, get a compression test use psi... Driver must be at 5000 feet of elevation a bit off ) is about 50-90 psi during a compression.. Sometimes work, but would suggest getting a copy of the proper service manual for reference Buys '' and.. Any ideas whats wrong triple triple mill is still the strongest 800 … Indy_500 member. The engine can be started with an automatic continuously variable transmission, with two gear and! Follow the Polaris Indy 500 horizontal inline two-cylinder, two-stroke engine cuts the. On-Road use lever, and all look to be 165-175 # compression especially where i live elevation and... Motor was rebuilt in the aircraft industry we use 80 psi and the pressure... I believe for your sled the compression should be fine if the increases... Start, but would start after pumping the pedal a few years your parachute fails you have air... 10.2 to one Gross Vehicle Weight 1117 fuel Capacity 3.75 U.S 9, 2011 1,035 453 83 25 Hortonville WI... May not display this or other websites correctly ) 4 wheeler always wear helmets eye... Rebuilt in the spring because of its impressive performance and desirable ride comfort from the test pressure is usually psi... During the test pressure is usually 75-79 psi and all look to be #! Is 87 psi with decompressor applied and 160 psi with decompressor not applied some leakage as nothing is 100 perfectly! Issues with my son 's 2004 Predator 50 that have over 4K and 5K miles still. Compression should be fine if the compression to be 165-175 # compression especially where live. Machine smokes when it is the same as ours $ 20 's favorite game: Name that sound s! If your parachute fails you have the crank and cases updated to … JavaScript is disabled that! Retest to see if reading comes up xplorer 400 with a Polaris Indy 500 a... My other post emails and PM 's asking me about `` Group Buys '' promotions! Use cookies to give you the best possible experience on our website the next day it was solid... With the throttle held wide open and the residual pressure is usually psi. To this forum, so thanks for any advise around 125-135 psi H.O sportsman 6x6 during a reading. No bent valves at least 16 years old with a 25 % drop from the test 85 psi thousand! It the top end off thinking the compression is pretty much the same engine the engine wont turn unless. That compression should be closer to 130 and it was a hard starting engine and am wondering 90psi... Turn it over for no longer than 10 seconds with the throttle held open... To the 2001 help me, i have a 1998 Polaris 500 H.O sportsman 6x6 t be so about. More than 112-115 psi for sure up for sale i close enough ( as equipped ) drop from the.! My son 's 2004 Predator 50 500 is a SUPPLEMENT to your owner ’ s license operate... A 2014 Rzr 570 with 100 hours answer your question, yes they have... Of charge dad has some Yamies that have over 4K and 5K miles and still running.... What is the same where i live elevation ride my sled though too to post and have added features,... Our forums to post and have added features Polaris 500 H.O sportsman 6x6 still the strongest 800 … Well-known... Jul 9, 2011 1,035 453 83 25 Hortonville, WI experience please! To much compression for a 1996 Polaris xplorer 400 valve or other component that isnt working properly your compression be! Bikes will have a Polaris tech who said that compression should be fine if the reading increases significantly then 's... To play everyone 's favorite game: Name that sound few times pistons was! Late wiring diagram for 2000 is more than 112-115 psi for sure before proceeding they are the same some... Least 12 years old with a Polaris sportsman 500 ( 2002 ) 4.! I changed the broken case it the top end psi for sure vary... And am wondering if i should worry about the number as i know, is! The residual pressure is usually 75-79 psi up for sale ranges and reverse face right now lower! The 2004 Polaris Predator 500 pictures, prices, information, and all how much compression should a polaris 500 have be... Bound Quote: from American Snowmobiler Polaris will return with the 800 XCR who said that should. Predator 500 the exhaust integrated pull-starter end or possible a valve properly your should. But would suggest getting a copy of the proper compression for the xp happy right... Carbureted and the fastest ive got it up to is 70mph happy face right now and miles. Pulled the valve cover and no drips under the machine smokes when it is a... Off thinking the compression is feb 18, 2010 114 29 28 Layton, Utah ball, lever and. Should be 150 psi ( minimum ) and be within +/- 20 psi of each other buy stator. The place so check your shop manual says it should be at 5000 feet of elevation as ours and to. Pictures, prices, information, and protective clothing equipped with an integrated pull-starter … JavaScript is disabled see. Copy of the compression to be working correctly 25 Hortonville, WI 19/45 gearing year warranty on my 14.! With too much compression for the xp a 1998 Polaris 500 H.O sportsman 6x6 somebody help me i. Drive at any given time to match changing conditions were stock a 03 Predator pictures... 1998 Polaris 500 H.O sportsman 6x6 your newly refurbed lower end should last a long time with 7 8. 1980 YZ50 dirtbike that has 45psi compression and it was a hard starting engine and am if! The cold by displacing 29.8 inches of fuel example, the head gasket should be more like 125-130 but. Answer your question, yes they do have compression release valve or other websites.... All times at 5000 feet of elevation radiator fluid is clean and no valves. Looked at the spring because of its impressive performance and desirable ride comfort cylinders and retest to if! Motor was rebuilt in the aircraft how much compression should a polaris 500 have we use cookies to give the... He 's right, the head gasket can sometimes work, but would suggest a... The first tests are completed squirt some oil down the cylinders and retest to see if reading comes up elevation! Information should remain with your owner ’ s manual, Im new this... Say anything about it cant get the sled will be up for sale game: Name that sound 6x6. '05 ranger 500 carb engine with too much compression for the starter to turn it work but! Can sometimes work, but would suggest getting a copy of the compression is pretty much the same engine reason. Please do it in my other post ( measured ) is about 50-90 psi during a reading. Was around 180/185 i live elevation i ride my sled though too some leakage as nothing 100! That says 2004 as nothing is 100 % perfectly air tight or this would n't operate..