rustybay Posted June 23, 2009 Report Share Posted June 23, 2009 hi there can anyone? my mate as a250 techno 1995? when we stop and kill bike fuel leaks from the bike it seams to be from around the fuel tap / carb is this the norm . we have to turn off at tap all the time if you can help regards wayne Quote Link to comment Share on other sites More sharing options...
pauldjohnson Posted June 23, 2009 Report Share Posted June 23, 2009 Hi Wayne, Have you tried this. Pulled the fuel pipe off from the tap. turn the fuel on then off. Dose the fuel stop if so the the valve is good. If not then the fuel will continue to flow into the carb and if on it's side stand it may weep out of the Carbs left side breather pipe. This shouldn't normally happen if the float is working normally. Paul. Quote Link to comment Share on other sites More sharing options...
yamahaty250xox Posted June 23, 2009 Report Share Posted June 23, 2009 Its the norm with every beta with a mikuni carb. There are many mods that can be done, there tricky but can cure this problem. Try using the search facility on the forum. Quote Link to comment Share on other sites More sharing options...
slapshot 3 Posted June 23, 2009 Report Share Posted June 23, 2009 ....or try the sticky thread on Beta Carbs at the top of the Beta Forum..... Quote Link to comment Share on other sites More sharing options...
dan williams Posted June 24, 2009 Report Share Posted June 24, 2009 The problem is these tubes are meant to be atmospheric vents for the float bowl. Occasionally fuel will get splashed up into the tubes and because the ends of the tubes are below the fuel in the float bowl they act as siphons. If you cut a small hole in the tubes above the float bowl say about halfway up the carb body they won't act as siphons. An easy cheap fix. Can't beat free. Quote Link to comment Share on other sites More sharing options...
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