Yamaha 40hp 2 stroke Welded rod/cdi indicator

[Roarl]

Does anyone know why the modifications on the rod/cdi has been done? Any ideas? The engine runs ok but can be a bit dodgy at times

 

[Roarl]

Did not manage to add pic, the rod to the speed leaver is extended, and the "arrow" on the cdi box is cut in half/welded back again, changes the angles. The question is, why has this been done in the past?

 

[99yam40]

will have to ask the guy that did it

 

[robert graham]

Maybe purchase new parts and replace those modified....go back to stock/normal and work from there...

 

[99yam40]

may have tried to make a part (not made for the motor) to work

 

[Roarl]

 

[Roarl]

Looks a bit silly? Rod extended in length with a treaded bar - cdi "plate" cut in half/changed angle - Could be that "99Yam40" is correct? That the cdi box is from another motor. My local yam dealer had never seen this mod before

 

[99yam40]

My C40TLRX had the idle timing too far retarded even when the arrow and marks lined up .
had to replace the CDI.

Check timing with a timing light to see what it is doing and if it is advancing properly and in spec