Join Date: Jan 2007
Location: Marietta, GA USA
Shifter shaft and clutch questions (from a car guy)
Please forgive these ignorant questions, but I don't have a bike or linkages to look at as I try to figure out some stuff. I'm installing a bare 2005 ZX-10 engine into my race car.
1. I'm getting ready to design a shifter cable and need to know which direction the shaft turns for upshifts and downshifts. In other words, when the shaft turns clockwise (when viewed from the left side of the engine), does that induce an upshift or a downshift? I know I should be able to tell on my own, but haven't been able to figure it out yet.
I should mention that I bought the engine on ebay and assume it's good, but haven't run it yet, so it could have problems if the seller was sleazy.
2. Regarding the clutch - I've replaced the clutch springs with stiffer ones, but am not confident that it has gone back together correctly. I hope it has, but would like to confirm. I can easily move the lever by hand quite a distance without much resistance, but I guess that's not really doing anything inside. Since I don't have a working bike with linkage to look at, I'm not sure where the lever is when it starts to disengage, how far it will travel or how hard it should be to move (especially with non-stock springs). I'm hoping someone can suggest ways I can work the clutch with the engine out of a bike chassis, and that will help me determine things like cable length needed to run it to the car's clutch pedal.
Let me know if you need more info or pictures for this post to make more sense. I appreciate your help.
F1000 (SCCA Formula Car w/ '07 ZX-10R engine) - Sold in 2010 :-(
Marietta, GA USA