I've just fitted the Boyer kit to my SS90 (distributor model).
This appears to have had an overall improvement and greatly reduced some mis-firing and rough running issues - next stop carb setup.
However, Id appreciate thoughts on the timing setup please.
The EE kit provides a max advance of 33.5 degrees at the crank equating to a 9/32 or 7mm BTDC static timing (retarded) - all as per book I believe.
However, my bike was fitted with the 10 degree (camshaft) advance unit as described in service sheet 91 (presumably due to an associated change in cam angles?).
This service sheet also specifies an ignition setting of 5 degrees BTDC fully retarded (presumably at the crank although it doesn't say).
My concern is that if I time as per the BB setup that I will be running over-advanced at typical throttle position and therefore need to retard a little.
What thoughts please?
Thanks,
Bernie
If you are too advanced it will kick back at you and try and bite your shins!
I still set mine by trial and error. If the engine sounds too harsh,back it off a little. If there is no power and runs hot try advancing a little. There is a sweet spot but that doesn't always equal the figures given!
Thanks - I've also now changed the original monobloc for new Mk1 premium concentric which has made further improvements. I think that with a bit of tweaking I should be able to get it pulling smoothly.
Cheers,
Bernie