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Old 10-09-2011, 12:09 PM   #34
sailah OP
Lampin' it
 
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Joined: Aug 2005
Location: Turning expensive metal into scrap
Oddometer: 5,316
Also worked on the chain and drive today. Since the CBR is much wider than dirt bikes, the counter shaft sprocket is way too (3/4"??) far left. Being the swingarm needs to be centered, the only options are to move the countershaft sprocket in, or move the rear sprocket outboard. I am going to do both.

I chucked up the new counter sprocket I bought for a 520 conversion. It has a shoulder on both sides to space it off the motor and to accept a bolt. I machined off one of the shoulders and remounted it. I gained maybe 3/16". Which is just that much less I need to space out the rear sprocket. BTW, that bastard must be really hard steel. Even with a rock solid tool holder and carbide insert it was a struggle to take just that little bit. I guess that's good for durability though.

I don't have my rear wheel yet I'll see what options I am looking at once I secure one. Have some different options but def leaning towards the cush drive from a 625/640/525 in either stock or aftermarket flavors.
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