hey guys, ok im done with my carburetor, i moved to the engine top end, and now i measured my valve clearances, wish im not sure i did it correctly however, here's how i proceeded... i turned the crank clockwise to the T mark aligned with some other mark...looked at the camshafts, and they are 2 little dots aligned upward on both intake and exhaust... measured cyl 1, 180 degree for cyl 2, another 180 degree for cyl 4, and last 180 degree for cyl 3. here's my clearances, going from left to right (as looking at them while sitting on the bike) EX: 30 - 30 - 30 - 30 - 25 - 25 - 25 - 25 IN: 15 - 20 - 20 - 20 - 15 - 10 - 15 - 15 the problem is im making a compression test, and i made the same proceedure. *based on 100 psi input on cyl 1, i got around 50 psi - - - - 100 psi with oil cyl 2 i got 50 psi --- below 100 psi with oil cyl 3 and cyl 4, had 100 psi with no oil while compressing cyl 1 , i found it weird having supposedly both intake and exhaust valves closed to have air comming out from the intake. im not so sure, so i'll double check compression again tomorrow, maybe i did something wrong .... the problem is, i would like to get the head off, so i can check everything down there, but if i remove the head gasket, and it tears, crack or anything, i won't be able to get a new one, as i called yamaha dealers here in lebanon, and they have no pieces whatsoever for my bike :S .....now wondering how to DO,maybe re-use the same gasket, i don't know....still no clue P.S: does it really matter turning the crank clockwise, or counter-clockwise ?? in this forum i see ppl saying to turn it clockwise, however based on fzr400 manual, says to turn it counter clockwise.... thanks for reading me !
The FZR400 flywheel is on the opposite side to the 250, so therefore it is rotated CCW, which is the same direction as the 250 rotated clockwise from the other side.
