Hi I am rebuilding two minibikes and have a couple of victa 125 cc motors that have come from rotary mowers.
Both run but backfire at full throtel.
I have the following questions I hope some one can help me with.
1 The original centrifical clutch is a heavy item , does this act as a fly wheel and is some modification required if a largere clutch is fitted.
2 Given a lighter clutch /no fly wheel does the timing need to be changed ?
3 The air filter apears to have a restrictor orriface. Is this necessary for the air/fule mix. I have tried running with out the air filter and the performance is worse.
4 Does any one know of a slide type carby with adjustable/replacable jets that can be used on these motors.
Any help at all would be apreciated.
Thanks
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Brett
[This message has been edited by brettsmith (edited 26-05-2003).]
