matthew Posted September 27, 2009 Report Share Posted September 27, 2009 hi there can got a problem where the enginge is hunting on the bottom end ive done the usuall . stripped the carb and blown out whith air compressor changed the fuel.cleaned the fillter checked float hights changed the spark plug its got to be a fuel problem as i gets better as iput a bit of choke on can anyone shed any light on this cheers Quote Link to comment Share on other sites More sharing options...
trialsnutterman Posted September 27, 2009 Report Share Posted September 27, 2009 How well have you cleaned the carb, I take it you've at least taken the jets and mixture out then blown through with compressed air, if not that would be my 1st suggestion Also have you cleaned the air filter and box, what's the filter like? After that check for a air leak on, manifolds, gaskets, crank seals, to do this you need to pressurise the cases to about 8psi and then check it after 10mins hopefully it should be still holding 8psi, I've got a bung that I fit in the exhaust port and another to go in the inlet manifold with a air valve that you can borrow, if you like, send me a PM. Quote Link to comment Share on other sites More sharing options...
geebee Posted September 28, 2009 Report Share Posted September 28, 2009 Whilst checking the carb ensure that the emulsion tube is properly tightened up. A loose tube can cause alsorts of problems Quote Link to comment Share on other sites More sharing options...
alboy Posted October 6, 2009 Report Share Posted October 6, 2009 did this sort out your problem? i think mine is doing a similar thing and ive tried all the suggested remedys... Quote Link to comment Share on other sites More sharing options...
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