Question about 1990 Yamaha TZR 250
I'm rebuilding a four wheeler for my neighbor. his atv's starter clutch suffered catastrophic failure. the starter clutch cover was minimized and circulated thoughout the cases after the 3 bolts M8x1.25x15mm sheared. I have disassembled, cleaned and reassembled the cases and trans. I need to know what the stock timing setting is supposed to be. If you bare looking at the engine from the (shifter/ stater/ starter clutch) left side, on top of the head just above the cam timing adjustment cover '' 4BD'' is cast on the top of the head. does this mean ''4''deg. ''B''efore top ''D''ead center?
No dont worry about that # what type of machine is it? what your gonna need to do is find the mark on the fly wheel some have a single mark and some have two if you have the cover off put it on there should be 2 access holes take the covers (small and larger probally flat head allen key) turn the engine counter clockwise till you line the second mark you see in that little window if it has two there should be a mark to line it up with, that is top dead center now there will be marks on the cam sprocket thatneed to get lined up also thats where i need to know what kind of machine it is but somehave an arrow some have two lines that get lined up with the gasket surface. if you post it i can help you finish
Posted on Dec 24, 2008
Need to knpw what head bolt torque specs are on a 94 250 timberwolf
Posted on Jun 29, 2011
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Posted on Jan 02, 2017
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