83 rm250 on an 81 rm125 frame

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Old 10-30-2011, 04:39 PM
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Default 83 rm250 on an 81 rm125 frame

I bought this bike from a friend that had started the transfer.
All that I had to do was figure out how to stuff a carb and air breather on it and a chain.
I thought I might haft to move the mono-shock back a little, but I dont think Theres enough room for that.
I mounted the carb and plumed it in.
It runs and idles ok, has a snappy throttle response.
The problem is that when you try to rev it, it has no mid range or top end.
Do you think the intake is just to long?
 
Attached Thumbnails 83 rm250 on an 81 rm125 frame-40822221431_orig.jpg   83 rm250 on an 81 rm125 frame-hjhjk.jpg   83 rm250 on an 81 rm125 frame-9040822095126_orig.jpg  
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