Recent content by andrewsnyder

FINAL UPDATE: So went back to check clearances, turns out one of the intakes had a WAY bigger shim (170) vs the shim in the intake valve beside it (135) so once switched, put bike back together and that cylinder works again(YESSSSS). It did bog but didnt spit any gas. Fixed bogging with Pilot...

UPDATE: So checking clearances tonight, one of my intakes is totally out of spec. Will fix it shortly and respond. When I fired the bike up today it seemed to run MUCH better than before which one of the valves is now in spec which could mean that it's this last valve causing it's screw up. AS...

No I can't do any of that on this engine Sent from my A0001 using Tapatalk

No they are spot on. Sent from my A0001 using Tapatalk

But the spring seemed totally fine, same height as others, same amount of work to compress it when removing valves. Sent from my A0001 using Tapatalk

The spring was totally fine Sent from my A0001 using Tapatalk

So after doing a test, no compression, again (fml). Im not sure if somewhere theres a pin hole leak as I dont have a leak down test I had brought it to someone before which I may do again. A BIG THING THOUGH is that I USED to have compression in this cylinder but then I went back and did my...

That's what I plan to do in a few hours, will reply with an update. I said I'd do this in my original post. Sent from my A0001 using Tapatalk

The leak was found to be in the Intake more than the exhaust as during the test you could hear the exhaust close but the intake was open the whole time through the carb. I told him that I had done a valve job before and he was surprised as he thought it would be clearances. As for lapping I...

*1989 Yamaha FZR 400* So I've had this bike apart so many times now and have done a valve job twice now. The first time was to get them in spec but once i had it running it never ran right, it always bogged from idle, extremely hard bogging. I've cleaned the carbs an infinite amount of times...