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Post by derbiman on Jan 7, 2013 18:23:57 GMT -5
Just picked up 1999 Derbi Hunter Manhattan for cheap. The prior owner melted the piston on a 70cc Malossi kit. I am going to reuse the Malossi head and have a new piston and jug on order. It has a Dellorto 19 phbg on it but I think it is way under jetted(76 main). Can anyone give me suggestions on what jets I should try and also where I can pick up a wrist pin bearing?(10 x13x14 mm) Thanks
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Post by teddy554 on Jan 7, 2013 19:28:40 GMT -5
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Post by tate on Jan 20, 2013 17:29:44 GMT -5
The wrist pin needle bearing is something you don't want to cheap out on. I learned that the hard way. I reckon Treatland.tv would have the one you want.
That is going to be WAY lean.
My guess would be something closer to 90-100 but that is just ballpark.
Again treatland.tv will sell you a range of jets.
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