Hi all,

The engine starts and runs well right through the rev range for about 20mins and then looses power and won't rev much over about 2000rpm. I've found if I activate the electric choke by pushing the key into the ignition I get full power back, this suggests its a lack of fuel problem. The VRO unit is removed, running a new diaphram fuel pump off the crank case. Am I best to remove and rebuild carby's? the manual suggests carby's are rarely the problem and adjusting can cause more problems... is it worth using an injector cleaner or spraying carby cleaner... what should I look for in carby's? blocked jets? any help appreciated, thanks

Ryan, May 2008

clean the carbs on this if you can take apart and use an airline to blow all the fuel and air ways clear in the carb and the jets ( brass )
also check the sparks and does the warning horn work and the ignition system can also give you this fault by overheating

ANDY CUFFLEY, January 2009