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OK, sooo I finally did the old skid plate and screen removal to clean out my oil sump during an oil change... This bike only has a couple thousand miles on it. Runs like a top still... Very few issues over the years after buying it used.
But boy I wasn't expecting to see this! Piece of a circlip, stuck up in the screen, and a another shard of metal and maybe a piece of gasket material. Nothing in the oil but that... Pristine otherwise, and still runs like a top. Always has.
Soooo, is it a wrist pin clip? That's the only thing I can think of like this that could end up in there. But definitely wanted to throw it out to guys that have seen the innerds of these more than I have.
The valves on this thing are still within the factory spec even. Been a really good lil workhorse...
Any other ideas?
I finally found an awsome app for your phone that shows you on a map all the trails near your location. You can read or add reviews, look at picts...etc
Its called: atv escape
By Dwight Williams
Ok, so I bought a 2006 bayou 250 for 200 bucks, kid couldn't start it and had no idea why it wouldn't run, I pulled the rope and felt what I thought was valve to piston contact, he wanted 500 and I talked him down to 200 and brought it home. Sure enough, timing was way far out, timing chain incredibly loose. So for fun I re-tensioned the timing chain and re timed it, got about 120lbs of compression, pretty low. I cannot get the chain very tight but the the tensioner seems to work fine, the chain guides don't look very worn. Also, when I took the head off the valves don't look bent and the piston has no discernible marks on it. Is this an interference engine? I sure thought I felt some contact with the pull rope but maybe no permanent damage was done? Anyway, I plan on doing a full top end job as well as timing chain tensioners and hopefully that'll cure it. Is there any reason other than chain stretch (I measured it and it's ok) or guide wear that would cause the chain to be so loose? Thanks!
By Jeff Wolf
Bought a nonrunning 1996 bayou 400. Tore down engine and found major problems. Piston is damaged and cylinder liner needs replacing. Looks like cause was a broken oil pump gear.
Question is can a piston from a prairie 400 be used? Is it the same engine? I assume the liner is replaceable?
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