Hi,
I've just tried to balance my carbs to get rid of a knocking noise at tickover and seem to have opened up a can of worms. Three of the carbs were fine but I just coudn't get a reading on #3. At first I thought I may have an air leak and tried spraying WD40 on and around the carb-head rubber to see if that would help but still no vacuum reading. The only way to get a reading is by pushing down on the adjuster for #3 but that would stall the engine.
So... I've whipped out the carbs and I can see that the throttle slide on #3 is sitting about 1 to 1.5 mm higher than those on the other carbs and there is not enough adjust ment to correct this.
Before I start taking the carbs apart, can anyone point me in the right direction? I know the previous owner had the carbs apart so could he have reassembled them wrongly? Could the needle height be set differently on this carb and would that affect the throttle slide anyway? Any suggestions welcome.
Oh, and Happy New Year everyone
Dan