Hi Garry,

I see your concern...the carbs do seem to be a nightmare at times..I've had
problems myself were as it would start perfect then i would try ride and would
not get up and go till after about 5500 rpm...so my discovery which I'm sure is
going to be yours...check the choke needles and see if there is carbon build-up
around them if so use 1200 grit waterproof sand paper and clean them till they
are like goldish looking.. also so that you know make sure that the Diaphragms
rubbers have no cracks...you never mentioned how you know the carbie is OK you
sure the floats height is correct ( example 20mm +/- 1mm) and make sure that the
Pilot jet ( 30 marked ) is not slightly blocked and the Pilot air jet is clean
too ( marked 160) on the jet the two main one's either side of the float..Note:
it wouldn't harm to actually clean the Plunger Pistons connected to Diaphragms
with 1200 grit sand paper.. also you mentioned idling idling screw is
between the carbs adjust so its about 1250 -1300
rpm ...hope this is some help

Safe riding
Brendon.



I have a problem. My motor runs very well, that is as long as it's
kept above 2800 rpm. I have looked for air leaks, but not found any. I
am not a carb expert, but they look OK. Any help would be appreciated.
GarryM





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