wayne_smith97 Posted January 6, 2014 Report Posted January 6, 2014 At what point on a bone stock motor does it get to where it won't kick start but will pull start. I've got 120 lbs on one side and 100 on the other. I had to pull start it couldn't get it to kick start Quote
Sandking Posted January 6, 2014 Report Posted January 6, 2014 Time for a new top end. Sent from my SCH-I535 using Tapatalk 1 Quote
wayne_smith97 Posted January 6, 2014 Author Report Posted January 6, 2014 Yeah I figured I'm building a leak down tester to check all the seals before I jerk the top end off 1 Quote
wayne_smith97 Posted January 7, 2014 Author Report Posted January 7, 2014 Didn't wanna throw a top end on it not knowing then have it grenade on me two weeks later. Quote
uman1030 Posted January 7, 2014 Report Posted January 7, 2014 Yeah I figured I'm building a leak down tester to check all the seals before I jerk the top end off Good idea, I would do some inspecting to figure out why one side is good and the other is 20 lbs less compression. In my instance i bought one like that and it ended up being a torn intake boot from a boost bottle. Caused lean condition onThat cylinder And no telling how long the previous owner ran it like that. Quote
wayne_smith97 Posted January 7, 2014 Author Report Posted January 7, 2014 I'm thinking bout pulling the exhaust on that side and taking a peak with a flash light to see if I can see any cylinder scarring and etc. will check the intake boots but one question. If you hold the throttle wide open how would the intake boot cause an issue Quote
sheerider11 Posted January 7, 2014 Report Posted January 7, 2014 I'm thinking bout pulling the exhaust on that side and taking a peak with a flash light to see if I can see any cylinder scarring and etc. will check the intake boots but one question. If you hold the throttle wide open how would the intake boot cause an issueHmm, I think your getting the leakdown and comp test a little mixed up. Or are you talking just in general? Quote
wayne_smith97 Posted January 7, 2014 Author Report Posted January 7, 2014 In general. The leaking intake boots shouldn't have anything to do with compression right? That would show evidence of a failed leak down test right Quote
uman1030 Posted January 7, 2014 Report Posted January 7, 2014 I'm thinking bout pulling the exhaust on that side and taking a peak with a flash light to see if I can see any cylinder scarring and etc. will check the intake boots but one question. If you hold the throttle wide open how would the intake boot cause an issue Leaking boots wouldn't effect the results of a compression test. but it could have caused a lean condition which would damage the piston/rings/bore which would give the low compression you speak of. Quote
wayne_smith97 Posted January 7, 2014 Author Report Posted January 7, 2014 Right right I agree 110%. It's -8 outside right now it's supposed to be 56 Saturday so I will check it all out then and follow up Quote
sheerider11 Posted January 7, 2014 Report Posted January 7, 2014 It's just that it's unaccounted for air. So now that cylinder is a little lean. So it wears faster. Quote
wayne_smith97 Posted January 7, 2014 Author Report Posted January 7, 2014 I had that happen on a dirt bike once smoked it too. I will know soon enough I am almost done with the leak down tester. For some reason no one around here carries metal tubeless valve stems. Have to order some I guess Quote
uman1030 Posted January 7, 2014 Report Posted January 7, 2014 check any place that sells tires or a tool store that sells stuff for air compressors etc. its called a schrader valve or you can use an airtank valve. http://www.ebay.com/itm/New-Schrader-Bridge-NAPA-90290-1-8-NPT-Air-Tank-Valve-906-length-USA-/161146358411 Quote
dirtydownunder Posted January 7, 2014 Report Posted January 7, 2014 you have to take the pipes off anyway to do a leak down, id also get a light and look inside the cylinder, look for some tell tales. bike should still run a 120/100. check other shit. clean jets/carbs n stuff. Quote
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