Engine sprocket

[Swiss Toni]

Kat engine. Thought this was original 15T sprocket. As far as I know, the spacer behind is OE. So, should the sprocket be one of those with a ‘balancer/harmonics’ lump of hard plastic to take up the extra spline, or do I go for longer spacer? Bearing in mind, engine isn’t going in a frame, so I can’t check chain alignment. Pics below of what I have to work with. Found old sprocket fitting in box. No idea where it came from!

 

[rodneya]

On the Kat I am currently taking apart there is a rubber piece on both sides of the sprocket sandwiched between that plate and amother at the back

[Ibbo]

The rear one works as a spacer, so im guessing thats why its been ground down a bit.

i got a spacer made up as it was a tidier job than modifying the original part.

mike

[Swiss Toni]

Cheers, boys!