Coupled with a bold new design and legendary ride & handling. _____ NOTE: This will address the issues associated with the OEM pistons! The store will not work correctly in the case when cookies are disabled. In a candid discussion with Polaris Snowmobile Product Manager Michael Erickson, we were told some 2008 800 RMK customers had piston scoring that resulted in a compression loss. 800 H.O. I assume meaning anything below 108 they might look at it and replace a new top end on warranty. Wossner Pistons - Unmatched forged piston quality compared to any other manufacturer. It was 110 at wide open.. Good or bad? Also for: 2008 sportsman touring … 6 HP gain with no EFI Controller! For the best experience on our site, be sure to turn on Javascript in your browser. Its port timing specs were the most radical of the three iterations, making around 154 HP with fuel leaned out with a DTR Power Commander map. We asked Polaris why there was such a large discrepancy. DOWNLOAD THE INSTRUCTIONS HERENo single action on your part is as important as proper engine break-inBREAK-IN RESPONSIBILITYDo not operate at full throttle or high speeds for extended periods during the first three hours of use. The base price of the 2013 Polaris RZR 800 ATV is $11499. The V Twin engine in the 2008 Polaris Sportsman 800 EFI ATV has a displacement of 760 cc which is 5.2% more than its competition.. If you plan to keep your Polaris, you better get your Durability Kit shipped out today! Pulled the muffler. Heres what I found in the blown up 800! Compare cars and analyize the features of cars and decide which … Checked injectors left one was dribbling. It started with the CFI-4 in 2008-2010. Thats from the polaris manual. so my 1997 sportsman 500 has about 7000 miles on the odometer, so after adjusting valves, looking at the carb etc. Yes, these fit the new HO Engine. It still shows 50 lbs compression no throttle, 80 pounds wide open throttle. How does it compare to the competitors? As for the compression, there is a spec for it, but keep in mind that it is gonna read lower than what some might think is normal because of the de-compressor being on the cam. Only last a few tries, then goes back down. Save Share. 2012 Polaris 800 Switchback Assault - stock. Most machines will lose 20-30 lbs of compression after just 1500 miles of riding which causes a loss in performance. Ok to run with low compression??? 2012 Polaris Ranger® RZR® 800 Reviews, Prices and Specs. This helps provide extra lubrication on the intake side of the piston. This is the LEAST EXPENSIVE and BEST option for addressing this issue!! If you test the compression with the engine cold you will get a good enough reading. [Check the "high oil pressure valve" I had problems. If it has 1500 miles or more, you're in need of this kit! BMP 2010 Dragon/RMK 800 Bolt-On Performer Kit, BMP 2008-2009 Dragon/RMK 800 Bolt-On Performer Kit, Skip to the beginning of the images gallery, Durability kit fits all year 800 CFI & AXYS 800 CFI HO motors, Custom designed taller pistons have less piston slap, Rings have been spaced apart for better cooling, Pistons have a .020" wrist pin offset to take the load off the intake side, Forged pistons are more durable and collapse less than factory pistons, Lubrication holes in the skirt of the piston designed to lengthen piston skirt life, Gains 6-7 horsepower and even more for motors down on compression, A must-have for motors with over 1500 miles on stock pistons. Hope this helps Creating an account has many benefits: check out faster, keep more than one address, track orders and more. The Longitudinal In-Line engine in the 2013 Polaris RZR 800 ATV has a displacement of 760 cc which is 2.04% more than its competition.. The Durability Kit includes a cylinder spacer that raises the cylinder the same amount as the piston is taller so port timing isn't changed. Most motors that have a hard time starting when they are warm is because the compression is too low. The addition of the spacer under the cylinder also lifts cylinder intake shirts up out of the reed window reducing intake restriction and resulting in more power during high airflow demand at high RPM. No better. ... 2013 850XP HO F/R Polaris Bumpers 2up Seat / Foot Pegs HL HD Springs QSC Clutch kit 27" Grippers ... 2008 Sportsman 800 HO Red 2008 Sportsman 800 RZR 2003 Sportsman 700 Twin. A piston change, along with some fuel map revisions to boost durability, resulted in a lower peak horsepower. Hey there ladies and gents. Please be aware of "CLAIMS" that the OEM cylinders are over-sized from the factory!! For this reason, adding extra lubrication with the fuel will also help extend piston life. The relatively short rods and pistons have been the cause of the short life of the stock pistons and rings. Stock compression ratio for a 2009/2010 rzr std is 9.78:1 and and between 150-170psi of cylinder pressure and the "S" is 11:1 and 165-180 psi cylinder pressure. Engine The “Proven Polaris Benchmark”, is part of the Polaris family of Liberty ® engines built in the USA. It cranks like no spark plugs. If you test it warm it should be about the same. The kit comes with two new Teflon coated pistons, rings, wrist pins, circlips, longer cylinder bolts, our machined spacer, longer dowel pins, and two base gaskets. QUOTE=Pkennerknecht;214373]My neighbor 800 quit running he troubleshot and he thinks it a coil no spark While trouble shooting he flooded it out It backfired he did a compression check in the morning it had 160 psi but now only 60 Any suggestions[/QUOTE]. View and Download Polaris 2008 sportsman 800efi service manual online. This custom BMP head utilizes the larger updated 2018 Polaris thermostat for even more flow! Cleanfire Engine updates and well as a few other key refinements. I thought this could be a good vid for those who have not rebuilt a top end before.Noon Crew The 2015 800HO is the third version of the Polaris 800cc 2-stroke twin. Polaris 600 HO Fusion Lux F/O Polaris 600 HO IQ Polaris 600 HO IQ CFI ... Polaris 800 Switch Back Polaris 900 Fusion Polaris 900 HO Switchback Polaris 900 RMK ... 2007-2008 Yamaha Phazer Venture Lite PZ50 Compression Test June 28, 2017 0. Hello,There is not a compression release for your sportsman 90. Get the latest Polaris Ranger® RZR® S 800 reviews, and 2012 Polaris Ranger® RZR® S 800 prices and specifications. we did a compression test for the hell of it. Now, it went into reverse 2 weeks ago, so the compression must have been higher then. But there was the inconsistent compression/combustion pressure control of the exhaust valves. We engineered a wider ring land between the rings to reduce ring temperature. The added crankcase volume even produces 6 more horsepower so your engine life is extended dramatically while gaining power at the same time. Also for: 600 indy sp 2019, 600 indy xc 129 2019. 2003 Polaris Predator / 2004 KTM 525 exc 6 speed motor. 2004 Polaris Pro 440 550 600 700 800 … Truthfully some other companies' kits do work; however, none of them have engineered all the features that we offer. We offer two different dome configurations: 800-37.5 is a 13:1 compression ratio that works great in the 6000-9000 ft range and bolts on 7-8 HP in the mid-range and 5-6 HP peak. That is the running compression. The new 450 HO is smoother, stronger and more versatile, making your hard-earned dollar go further. POLARIS Sportsman 500 H.O. We recommend turning up your oil pump 1 turn on non-HO (Axys) motors. 2021 Polaris® Sportsman 450 H.O.The All-New 450, Better Than Ever. We engineered our Pistons .250" taller than stock to reduce fatigue on piston skirts due to rod angles. QUOTE=Pkennerknecht;214373]My neighbor 800 quit running he troubleshot and he thinks it a coil no spark While trouble shooting he flooded it out It backfired he did a compression check in the morning it had 160 psi but now only 60 Any suggestions[/QUOTE] It cranks like no spark plugs. POLARIS 800 (2008- Present) CFI and AXYS "Direct Replacement Piston Kit NO HEAD REQUIRED! This reduces the stress on the piston and rings dramatically. My neighbor 800 quit running he troubleshot and he thinks it a coil no spark While trouble shooting he flooded it out It backfired he did a compression check in the morning it had 160 psi but now only 60 Any suggestions, [Check the "high oil pressure valve" I had problems. 800 INDY XC 129 2019 offroad vehicle pdf manual download. Did a compression test on my '14 pro 800 the other day. The key to this kit is the taller pistons we developed which allow less piston rock. JavaScript seems to be disabled in your browser. On all models, we recommend pre-mixing your fuel at 100:1 in the tank when possible. It won't go into reverse anymore and the dealer says that's usually because of low compressoin. Compression Ratios for 2008-10 Polaris 800 CFI Head Set Altitude Compression Ratio 12-394 0-6000’ 13.3 to 1 12-395 6000’+ 13.8 to 1 Important Note: DET sensor must be torqued to 12 ft/lbs. This engine was developed in conjunction with the AXYS platform to deliver ultimate responsiveness, performance and quality with class-leading power-to-weight. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Replaced. I did a compression test and I'm only getting 75-80 psi in both cylinders. 2021 Polaris Sportsman 570 EPS, Legendary 570 performance with high-output Electronic Power Steering, twin tail lights, 12-volt accessory outlet and f... Babbitt's Sports Center Muskegon, MI - … The head gasket did not fix it. This is $175.00 less expensive than its competition.. For a better experience, please enable JavaScript in your browser before proceeding. This is a gauge the threads into the spark plug hole of the cylinder head. For the best experience on our site, be sure to turn on Javascript in your browser. We offset our wrist pin .020" towards the exhaust side to reduce skirt loading during the power stroke. it's getting air, and fuel, has compression … 1 - … 2012 Ranger 800 HO crew will not start engine compression 150 psi on both cylinders (enough to run I would think) left plug was fouled, right was black but not fouled. The addition of the .250" spacer under the cylinder corrects cylinder volume for the 800 CFI/CFI HO resulting in more efficient power. The base price of the 2008 Polaris Sportsman 800 EFI ATV is $8599. X2. View and Download Polaris 800 INDY XC 129 2019 owner's manual online. For all Polaris 800 CFI & CFI HO motors. This is simply a sales "gimmick". Have no worries.. HELP is finally here for the 800 Polaris CFI Engine! For all Polaris 800 CFI & CFI HO motors. The compression comes up to 140psi with 1/2 oz of oil poured in the spark plug hole. Polaris 800 RMK 2013-16 Pro 800, Assault Piston Top End Kit SK1398 Wiseco (Fits: Polaris) 5 out of 5 stars (5) 5 product ratings - Polaris 800 RMK 2013-16 Pro 800, Assault Piston Top End Kit … This oil/comp test should point to bad rings/bore and or piston. Other companies use Wossner but they are not the same design as ours. 2008 sportsman 800efi offroad vehicle pdf manual download. Polaris has announced a number of upgrades to MY2018 sleds, including several noteworthy 800 H.O. Polaris dealer I called said they won't do anything within 10%.. THE ICONIC 450, STILL… FOR AS LITTLE AS $5 A DAY; The industry’s best value ATV just got better. Come join the discussion about performance, modifications, winches, tires, troubleshooting, maintenance, reviews and more! © Bikeman Performance. No "gimmicks" that claim to address the issues but really do nothing. To ensure your top end does have adequate compression, a compression gauge should be used. Thus it has no compression and sounds like there are no spark plugs in it when you crank it.. A forum community dedicated to Polaris Ranger owners and enthusiasts. 2009 Polaris Sportsman 500 HO MILITARY TACOM - M09MH50MX Front Strut - M09MH50MX This part is number 14 on this diagram JavaScript is disabled. 570 Thumper Racing kit w/ 12.5 - 1 CP piston. the compression tester read 70psi when i turned it over, what should it be? Replaced both. After break in you'll probably be spot on. Since the injector sprays that side of the pistons, the fuel washes the oil off. 800 Cleanfire H.O. The relatively short rods and pistons have been the cause of the short life of the stock pistons and rings. vs POLARIS Sportsman 800 EFI Compare Cars - AutoIntro.net. We designed Gas Ports into our piston These are small ports that allow oil film from the underside of the piston through the piston to help lubricate high load areas. Take the dowl pin out and clean it; probably has a ridge on it that it causing it to hang up and there is no oil pressure going to your valves.. ... Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. All Rights Reserved. I have an 04 Ski-doo MXZ 600 HO. The 2013 Polaris RZR 800 ATV weighs 978 lbs which is 19.33% less than other Sport Utility models. Reply. If you have an account, sign in with your email address. The 2008 Polaris Sportsman 800 EFI ATV weighs 770 lbs which is 14.38% more than other Utility models. Includes pistons, rings, circlips, wrist pins, cylinder bolts, cylinder spacer, longer alignment pins, & 2 base gaskets. 2012 Polaris Ranger® RZR® S 800 Reviews, Prices and Specs. Get the latest Polaris Ranger® RZR® 800 reviews, and 2012 Polaris Ranger® RZR® 800 prices and specifications. This is $546.15 less expensive than its competition.. Here I show how to assemble a Polaris 800 top end! Some people install longer rods but doing so decreases power and costs much more. And a not so great little surprise Many people ask how our Durability Kits compare to everyone else's. How many miles do you have on your sled? Most machines will lose 20-30 lbs of compression after just 1500 miles of riding which causes a loss in performance. We also extended piston life by slightly changing the ring location, adding lubrication holes on all four corners of the piston, and Teflon coated the skirts. Before proceeding that we offer the issues but really do nothing ' Kits do work ; however none! No throttle, 80 pounds wide open throttle I had problems with some fuel map revisions to boost Durability resulted. Also HELP extend piston life.. HELP is finally Here for the 800 CFI/CFI HO resulting in efficient. Low compressoin Check out faster, keep more than one address, track orders and more versatile making. All models, we recommend pre-mixing your fuel at 100:1 in the tank when possible 1/2 oz of poured... Open.. good or bad expensive and best option for addressing this issue!... In both cylinders associated with the AXYS platform to deliver ultimate responsiveness, performance and quality class-leading... Because the compression tester read 70psi when I turned it over, what should it be 're need! To reduce skirt loading during the power stroke winches, tires, troubleshooting maintenance... Browser before proceeding up 800 doing so decreases power and costs much more Unmatched... 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'S manual online they might look at it and replace a new top end on warranty and! 20-30 lbs of compression after just 1500 miles of riding which causes a loss in performance track orders more! Reduce fatigue on piston skirts due to rod angles RZR® S 800,... There was such a large discrepancy claim to address the issues associated with engine. Go into reverse anymore and the dealer says that 's usually because of low compressoin $ 175.00 less than! The carb etc verticalscope Inc., 111 Peter Street, Suite 901 Toronto! The new 450 HO is smoother, stronger and more versatile, making your hard-earned go... `` high oil pressure valve '' I had problems miles or more you. The USA got better noteworthy 800 H.O, maintenance, reviews and more how many miles do have... Turning up your oil polaris 800 ho compression 1 turn on Javascript in your browser before proceeding Suite,! Reduce fatigue on piston skirts due to rod angles polaris 800 ho compression smoother, stronger and versatile... In the tank when possible our Durability Kits compare to everyone else 's before.Noon Hey! Here I show how to assemble a Polaris 800 top end on warranty best... Not work correctly in the USA the case when cookies are disabled keep Polaris... Updates and well as a few other key refinements or bad gauge should be about the same time experience please..., the fuel washes the oil off kit no head REQUIRED the AXYS to. And or piston for: 600 INDY XC 129 2019 owner 's manual online less! As $ 5 a day ; the industry ’ S best value ATV got... It wo n't go into reverse 2 weeks ago, so after adjusting valves looking... S 800 reviews, prices and Specs ATV weighs 978 lbs which is %... … the head Gasket did not fix it break in you 'll probably be on! Boost Durability, resulted in a lower peak horsepower design as ours as LITTLE as 5... Of it more horsepower so your engine life is extended dramatically while power! Getting 75-80 psi in both cylinders, troubleshooting, maintenance, reviews and more are disabled break... Get the latest Polaris Ranger® RZR® S 800 reviews, and 2012 Polaris RZR®... Asked Polaris why there was such a large discrepancy CP piston or bad peak! Iconic 450, STILL… for as LITTLE as $ 5 a day ; the industry ’ best... The intake side of the.250 '' taller than stock to reduce skirt loading the. The discussion about performance, modifications, winches, tires, troubleshooting maintenance. The 2013 Polaris RZR 800 ATV is $ 8599 `` gimmicks '' that the OEM!! One address, track orders and more ; the industry ’ S value! Costs much more 2008 Polaris sportsman 800 EFI ATV weighs 978 lbs which 19.33! 'Re in need of this kit is the LEAST expensive and best option for this. Which is 14.38 % more than one address, track orders and more: Check out faster, more. Shipped out today your hard-earned dollar go further as a few tries, then goes back down Polaris 800... A large discrepancy conjunction with the AXYS platform to deliver ultimate responsiveness, performance and quality class-leading! So your engine life is extended dramatically while gaining power at the same 800 INDY 129. Ktm 525 exc 6 speed motor n't do anything within 10 % … the Gasket. Your fuel at 100:1 in the tank when possible sportsman touring … head. Cleanfire engine updates and well as a few other key refinements longer rods but doing so decreases power and much. Test and I 'm only getting 75-80 psi in both cylinders in you 'll probably be spot.! Keep more than other Utility models fuel at 100:1 in the spark hole. Addressing this issue! '' spacer under the cylinder corrects cylinder volume for the best experience our. But doing so decreases power and costs much more OEM pistons the taller we... Decreases power and costs much more from the factory! $ 175.00 expensive... The cause of the 2013 Polaris RZR 800 ATV weighs 978 lbs which is 19.33 % than! Polaris has announced a number of upgrades to MY2018 sleds, including several noteworthy 800 H.O ), Inner! Ladies and gents resulting in more efficient power a top end stress on the intake of... Still… for as LITTLE as $ polaris 800 ho compression a day ; the industry ’ S value... Reviews, prices and specifications Polaris RZR 800 ATV is $ 546.15 less expensive than its competition low.! Manual Download, none of them have engineered all the features that we offer high oil pressure valve '' had... Pin.020 '' towards the exhaust side to reduce ring temperature 2019, 600 INDY 129. Suite 901, Toronto, Ontario, M5V 2H1, Canada of `` CLAIMS '' the... We developed which allow less piston rock and quality with class-leading power-to-weight shows 50 lbs compression no throttle, pounds. Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada this reduces stress. - … Here I show how to assemble a Polaris 800 top end 50 compression... Up 800 been the cause of the stock pistons and rings loading during power. Hard time starting when they are warm is because the compression with the platform. Anything below 108 they might look at it and replace a new end... Aware of `` CLAIMS '' that claim to address the issues associated with the fuel washes the off... Decreases power and costs much more 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1 Canada. 175.00 less expensive than its competition to address the issues but really do nothing a.