Thread: Back to the F100 Yamaha....

So not reading your service manual these comments may be all wet but when I synchronize Yamaha Carbs I have the linkage loose, Nothing touching the timing advance cam on the throttle linkage, pencils with the eraser end lightly holding the butterflies closed on all butterflies at the same time (can get tricky) I lock down the lefthand thread screw that keeps all the linkages together so all butterflies open in perfect union. Does your engine have the same adjustment as the Yamaha's I have experience synchronizing?

Originally Posted by Rojo

So not reading your service manual these comments may be all wet but when I synchronize Yamaha Carbs I have the linkage loose, Nothing touching the timing advance cam on the throttle linkage, pencils with the eraser end lightly holding the butterflies closed on all butterflies at the same time (can get tricky) I lock down the lefthand thread screw that keeps all the linkages together so all butterflies open in perfect union. Does your engine have the same adjustment as the Yamaha's I have experience synchronizing?

I'll take a pic and show you. Sounds similar. One thing though, I don't think mine would run with all the butterflies completely closed, dono. I think mine are ever so slightly open.

And if I can remove the advance with it's linkage, that would be great, it's in the way of feeling the vacuum on the bottom carb.

Great feedback John. And yeah, I suppose I should read the manual, doh!