steeler2169 Posted March 30, 2009 Report Share Posted March 30, 2009 To check timing can you use a regular timing light or is there a SPECIAL one, what should timing be at. Quote Link to comment Share on other sites More sharing options...
sredish Posted March 30, 2009 Report Share Posted March 30, 2009 To check timing can you use a regular timing light or is there a SPECIAL one, what should timing be at. what are you going to shine the light on? Quote Link to comment Share on other sites More sharing options...
deckheight Posted March 30, 2009 Report Share Posted March 30, 2009 Yup, inductive light, either plug wire. Bring the left cylinder to TDC and indicate the flywheel, install a pointer at zero and hook up a tachometer. OEM timing specs are 17*@1000rpm, 22*@3500 and 9*@10,000 if memory serves... Quote Link to comment Share on other sites More sharing options...
blowit Posted March 30, 2009 Report Share Posted March 30, 2009 (edited) Just to reiterate, you will need to put an indicator in the plug hole to properly find TDC. It works really nice if you have an advance/retard wheel on your light. If not, you can either guess or use the trusty calculator to determine the arc length at the diameter of the flywheel. Hopefully you have a good light and things will be easier if you hate math. On another note, this may sound ass-ish but with all the time spent trying to find your issue, you may be time and money ahead to take the bike to a pro and get it dialed in. many pros can simply start the bike and get a feel for what is going on. Hell, post a vid with sound and we might be able to get a feel for the problem that way. You are not running into the rev limiter on the clutch lever now are you????? If you still have your E-brake, adjust it tighter on the bar and see what happens. At the dealer years ago, we would have at least one a week show up with this problem. GD Yamaha. B Edited March 30, 2009 by blowit Quote Link to comment Share on other sites More sharing options...
AKheathen Posted March 31, 2009 Report Share Posted March 31, 2009 if you have a stock timing plate and key, there is an indicator cast into the top case @ about 2:00 Quote Link to comment Share on other sites More sharing options...
blowit Posted March 31, 2009 Report Share Posted March 31, 2009 if you have a stock timing plate and key, there is an indicator cast into the top case @ about 2:00 It is always best to verify true TDC with an indicator. A twisted crank can get things all screwed up. Seen that a few times actually. One cyl is spot on, the other is 10 degrees off. B Quote Link to comment Share on other sites More sharing options...
deckheight Posted March 31, 2009 Report Share Posted March 31, 2009 I usually end up taking the long way around things wether I initially plan it that way or not... But sometimes things just have to be done... Last time I went through all the drama was to verify CDI function, that wasn't it LOL! Quote Link to comment Share on other sites More sharing options...
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