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Hello TCLBobber,
If you r confused as to which gear to buy, don't feel bad. I bought the larger gear from Mikes only after making careful measurements.
I have a 72, but installed an 81 trans. The large gear fits on both the 72 and the 81 shaft perfectly. Mikes data will conflict with this.
Anyway, to put ur mind at rest, make some careful measurements or bring it to a bike shop or machine shop. They should have capable people who can handle verniers and micrometers. Mikes can usually get the parts to you in 4 to 5 business days, so measure it then order it.
After many unfortunate delays, (although it rain every day lately), I will be installing the engine in the frame this weekend and have it running by midweek. I will let everyone know how it works.
Oh, I also installed the 33 tooth rear sprocket, the improved clutch kit, all new seals and polished the side cases and valve covers. Can't wait!
Good luck!
If you r confused as to which gear to buy, don't feel bad. I bought the larger gear from Mikes only after making careful measurements.
I have a 72, but installed an 81 trans. The large gear fits on both the 72 and the 81 shaft perfectly. Mikes data will conflict with this.
Anyway, to put ur mind at rest, make some careful measurements or bring it to a bike shop or machine shop. They should have capable people who can handle verniers and micrometers. Mikes can usually get the parts to you in 4 to 5 business days, so measure it then order it.
After many unfortunate delays, (although it rain every day lately), I will be installing the engine in the frame this weekend and have it running by midweek. I will let everyone know how it works.
Oh, I also installed the 33 tooth rear sprocket, the improved clutch kit, all new seals and polished the side cases and valve covers. Can't wait!
Good luck!