- Joined
- Jun 20, 2019
- Messages
- 5
Hi, I am working on a 1971 Commando 750 combat engine.
The motor was rebuilt (2,000 km ago) with a Mégacycle 560 nr camshaft, 0.060``+ pistons and all the other parts are std to this bike (except a pointless system).
There is good low and mid power but almost no top end (nothing over 4500 rpm).
I try a lot of carb tuning an timing (fire), a new pointless system was installed but with almost no change in performance.
I check the cam timing with a degree wheel and it is ok (may be 1/2 degree offset).
I have two questions:
1 = Is it normal to have that kind of power with this cam?
2 = I wonder if someone try to give 5 degree advance on this cam (playing with gears and number of links)?
Thanks!
The motor was rebuilt (2,000 km ago) with a Mégacycle 560 nr camshaft, 0.060``+ pistons and all the other parts are std to this bike (except a pointless system).
There is good low and mid power but almost no top end (nothing over 4500 rpm).
I try a lot of carb tuning an timing (fire), a new pointless system was installed but with almost no change in performance.
I check the cam timing with a degree wheel and it is ok (may be 1/2 degree offset).
I have two questions:
1 = Is it normal to have that kind of power with this cam?
2 = I wonder if someone try to give 5 degree advance on this cam (playing with gears and number of links)?
Thanks!