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Similar Forum Topics
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By drobbie98
Hey all, Thanks for having me in the forum. I just purchased my first ATV and am stoked to understand more about it.
The first stupid question will be, what is everyone's maintenance schedule? DO yo follow the recommended intervals or build one yourself based on the machine.
Thanks in advance.
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By trx125flip
yay forum stuff again... really needing a 87 trx125 service manual.. if anyone has one without a dead link that would be super!
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By rebeltaz
I've got a Bear Tracker I'm working on. The guy said that it was running until they ran it through water and it backfired and would not start again. He said when it backfired, it blew a hole in the muffler. Yeah... customers tend to lie, but... anyway.
I replaced the starter clutch set to begin with so I could spin the engine and see what else was wrong. I cleaned the kill switch and got it to spark. I rebuilt the carburetor - there is no way this thing was running, but... yeah. I have verified that it has compression (over 150psi). I have verified that there are no leaks (with a leak down test). I have verified that the cam is in time. I have verified the the cam gear has not spun on the camshaft. I have verified that the valves are adjusted correctly. I have verified that the valves are in fact opening and closing. I have verified that the flywheel hadn't sheared the key (both when I replaced the starter clutch and I made sure that when the top-dead center mark is lined up, the piston is, in fact, at tdc). I have verified that it still has spark. I loosened the exhaust manifold, in case the muffler was clogged (even though you can feel the pressure as the engine spins over)/
It refuses to start. Even on starter fluid. EXCEPT... If I hold my hand over the intake, it has twice popped off like it wants to start, but that is it.
I have no clue what else I could even try! I am hoping someone will have that Ah Ha! moment...
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