So I bought a CG for my wife's bike, and after reading the horror stories, I decided to disassemble completely. After checking the crank...
I found one side weighing 803 grams and the and the other side at 881 grams.
After a bit of machine matching sizes on the weights and crank I now have 2 side weighing 586 ea. with 0 run out all the way to the end of the shaft, I decided to lighten the crank up alittle from 1684g to 1172g.
Next up is drilling the journal holes bigger to put in offset spacers in to increase the stroke up to 2mm. I may make a billet rod, if this one isn't straight.
Another thing I found was the piston was too tight in the bore, so a little adjustment to the skirt will be necessary when I cut the top to match the head chamber.
The clutch pads.... well I will work on that. Most likely a bronze product would be best.
I found one side weighing 803 grams and the and the other side at 881 grams.
After a bit of machine matching sizes on the weights and crank I now have 2 side weighing 586 ea. with 0 run out all the way to the end of the shaft, I decided to lighten the crank up alittle from 1684g to 1172g.
Next up is drilling the journal holes bigger to put in offset spacers in to increase the stroke up to 2mm. I may make a billet rod, if this one isn't straight.
Another thing I found was the piston was too tight in the bore, so a little adjustment to the skirt will be necessary when I cut the top to match the head chamber.
The clutch pads.... well I will work on that. Most likely a bronze product would be best.
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