go-rebels
Member
The Whizzer is back on the road!
I replaced the copper head gasket over the weekend and took the bike on a 12 mile ride yesterday without incident.
But I'm still having a problem starting the bike from a regular kick start on the stand as it seems that the high compression head has resulted in more transmission slippage than normal. In fact, I thought I still had a spark problem as I could not get the bike to fire using my normal "kick start" method. Upon closer examination I determined that I just wasn't getting the motor to turn over sufficiently. So now I need to ride the bike for maybe ten yards before engaging the clutch to spin the motor and start the engine. Needless to say, with a cold motor and a hill to climb, this can be a bit of work!
The engine has gobs of low-end torque and revs like crazy if allowed (remember, this motor has one of Quenton's custom cast racing heads on it). It now appears that I'm just not getting enough power to the rear wheel. I've adjusted the length of the cable that engages the idler pulley through all possible positions but still cannot get improved power transmission.
Can someone describe the design of this manual clutch 'transmission'? When going up a moderate hill, the engine RPMs will climb, but my speed will drop. Is there a way to easily modify the design (stiffer spring/smaller belt/different pulley/etc.) to get more power to the rear wheel?
I replaced the copper head gasket over the weekend and took the bike on a 12 mile ride yesterday without incident.
But I'm still having a problem starting the bike from a regular kick start on the stand as it seems that the high compression head has resulted in more transmission slippage than normal. In fact, I thought I still had a spark problem as I could not get the bike to fire using my normal "kick start" method. Upon closer examination I determined that I just wasn't getting the motor to turn over sufficiently. So now I need to ride the bike for maybe ten yards before engaging the clutch to spin the motor and start the engine. Needless to say, with a cold motor and a hill to climb, this can be a bit of work!
The engine has gobs of low-end torque and revs like crazy if allowed (remember, this motor has one of Quenton's custom cast racing heads on it). It now appears that I'm just not getting enough power to the rear wheel. I've adjusted the length of the cable that engages the idler pulley through all possible positions but still cannot get improved power transmission.
Can someone describe the design of this manual clutch 'transmission'? When going up a moderate hill, the engine RPMs will climb, but my speed will drop. Is there a way to easily modify the design (stiffer spring/smaller belt/different pulley/etc.) to get more power to the rear wheel?