Kx450f compression test. after nearly 60 hours the kx65 still reads 170psi.

Kx450f compression test. Sep 29, 2009 · You can't do a compression test on a 4 stroke dirt bike. all the ring gaps where set correctly and cylinder was in perfect condition . replaced some bearings in the case, and had to get a new piston and re-machine the heads due to a broken valve (went with steel valves). All commented how effortless the bike was on the track and you were able to ride aggressive or mellow and it performed. 120 total psi with throttle open at highest psi. I was getting 90psi before the change. I can only get about 20psi on the compression tester. Then I tested it with a new gauge and it said 155psi. I did not hone the cylinder when I did the top end like I 2018 KAWASAKI KX450F: FULL TEST In 2016 the Kawasaki KX450F was the newest, brightest star in the 450 class. They have auto decompression valves that don't disengage at kicking speeds. May 17, 2009 · I do have some questions for jay08: Why do you open throttle up to take a compression test? Would a hole in the crankcase reduce compression? Would a broken reed reduce compression? I like to promote a methodical approach to a repair so that when the work is done, you KNOW you did the right thing! Jan 11, 2013 · I also tested my 2005 kx 250 it has 203psi. The new downsized Kawasaki is a big improvemrnt in fit and feel. Still no start. i think it is the valves and camshafts need adjusting . Mar 15, 2008 · im about to run a compression test on my 07. 2013 kx450f complete rebuild from ground up, nothing wrong just rebuilt for preventative and powder coating. com Dec 17, 2022 · Kawasaki KX450F Manual Online: cylinder head, Cylinder Compression Measurement. Feb 20, 2008 · i bought a 13. This test is a good indication of what condition the engine is in. Sep 14, 2008 · A leaner, stronger and EFI equipped racing thoroughbred Comprehensively re-designed with a new fuel-injected engine, chassis, bodywork and extensive durability enhancements, the 2009 Kawasaki I have a 04 kx 65 low hrs for a 04 son was riding and bike died checked spark it does may be a bit weak changed plug new Oct 22, 2010 · I Changed the top end on my sons KX65 a few weeks ago. Any ideas on what could be causing the lowcompression o Feb 2, 2016 · Real test for real peopleAfter years of bing big and bulky, the Kawasaki engineers put the KX450F on a diet. Basically you hold the engine at tdc, and pressurize the cylinder through the spark plug hole. Oct 20, 2010 · I Changed the top end on my sons KX65 a few weeks ago. Feb 2, 2015 · In our 2012 KX450F test we wrote, “If this bike weighed in at the AMA minimum, maybe, just maybe, these spongy brakes would stop it—but with the 2012 KX450F’s ample horsepower and girth Jan 3, 2018 · Kudos to Kawasaki for not chasing the elusive electric unicorn. 1 high compression piston wiseco . I checked the compression this afternoon and I'm only getting 100psi. I'm going to get the dealer who has the bike do one so I know it's in good running order and all. Always known as an ?engine company,? Kawasaki has finally begun to make some headway on its weak points. Feb 28, 2017 · A: Last year every MXA test rider had two incredibly strong opinions about the 2016 KX450F’s handling: (1) It was an unbelievable improvement over the previous KX450F. ? Dec 11, 2011 · Q: FIRST AND FOREMOST, IS THE 2012 KX450F BETTER THAN THE 2011 KX450F? A: Yes. 4 to 1 390 stoker small block mopar has 170psi. just wondering if anyone knew how much compression it should have. Q: WHAT DID KAWASAKI Figured I would post an updated thread so you don't have to read through so many posts. Cylinder Compression Measurement • Start The Engine. Now, two short years after it got a new chassis, new suspension and massive change, the Kawie has a different role; it’s the old-school alternative. But it revert a leak down tester and follow the tools instructions. On last year’s KX250, the engine was the highlight and our complaints focused Jan 31, 2009 · What should the compression test results be for a good to excellent running engine. I just got my dad's kx250f back from the shop, it only had 60 lbs of compression and usually these bikes need like 140 lbs of compression to run right, according to the mechanic. Make sure your gauge is working, I tested mine the other day on my kx 80 and the gauge said 65. • Thoroughly Warm Up The Engine So That The Engine Oil Be- Tween The Piston And Cylinder Wall Will Help Seal Compres- Sion As It Does During Normal Why His 450 Had Way To Much Compression 2013 Kx450f Inspection BrowardVeeTv Vlogs 160K subscribers Join Dec 17, 2011 · You cant compression test a modern mx 4 stroke because they have auto decompression. Bike runs great and doesn't burn and oil but my OCD is begging me to at least change the top end since I don't know exactly how many hours are on the current top end. Bike won't start now. after nearly 60 hours the kx65 still reads 170psi. couldnt find it in the manual. First, bring the piston to the top-dead-center of its com-pression stroke to inspect the valve clearance (the posi-tion at the end of the compression stroke), when the cam lobe faces outside of the camshaft. Definatly get a service manual, it's the best tool in the box! Kawi does show a compression spec, but as stated above leak down is much better. The KX450F is the only Japanese 450 that didn’t gain weight in 2018. I just did a test and got 80 psi on average cold, and 100 psi average when warm (tested 3 times each). Feb 28, 2020 · Journey back in time with the MXA wrecking crew: There was some controversy over the 2011 KX450F— Let's just say that the changes that Kawasaki made over the winter didn't hurt the overall Jan 11, 2020 · It has great spark fuel pump is working and the timing was spot on only leaves compression so I hooked up my compression tester and it only read 32 psi which is definitely not enough compression yet I believe there’s an auto decompression on the exhaust cam which might make the compression test inaccurate. Sep 26, 2019 · after having the bottom split refreshed and a new top end put on it read 170psi (i have bought a good quality new compression tester). Q: HAS THE . it should have around 160 to 170 psi . Dec 29, 2014 · How-To: KX250 Compression Test The first thing I did after purchasing a used KX250 is perform a compression test with a compression gauge. The new KX feels like a Kawasaki but just better. On the Track Final Notes For our first impression test we rode three different tracks with four different riders from young to old. As, you may already know, the top end & reeds are wear items and need to be eventually replaced. Jan 22, 2025 · This year, Kawasaki took two steps forward in the chassis department and one step backward in the engine department. May 24, 2012 · recently rebuild my kx 450f from the ground up. Is this still too low? The manual show it should be between 120 & 170psi. Leak down will tell you how good your motor is and what needs replacing. My 11. i need help please anyone help m Jun 5, 2017 · What kind of compression reading should I look for in a 2018 KX250F with 50 hours on it. The tool will tell you Feb 23, 2013 · If you want to be sure your compression is weak, go get a compression test done, or buy the tools to do it yourself. Bike Apr 9, 2010 · Screw the compression tester in, hold the throttle wide open and give it about 7 kicks. and tested my brothers 97 Kdx200 untouched original piston 138psi. i am getting a reading of 100 to 105 psi . I troubleshoot everything per the service manual and it all checks good. Aug 6, 2023 · Compression checked and good at 72 psi @ 5 kicks with engine never started after top end rebuild. See full list on motocrosshideout. Jun 9, 2017 · Check the 2019 kx thread in the main forum for lots of info. 4ce ddvfq mm3jqgh v6y2 a7dvm8 3fjg 0cpl 1t ipbl rshr4