My engine was a 1000cc 2 valve, now it is 1150cc.
It has the non CV type carbs.
It had 26mm venturi carbs with 95 mains and 20 pilot jet sizes.
It would constantly foul plugs due to soot building up.
Would run fine carburation wise with new plugs.
Carbs were replaced with 28mm venturi (36mm towards head)
They are off a 1000cc Katana,
These had 150 main jet & 20 pilot jet.
(were used for road racing)
The stock air box has been tossed in favour of pods.
The plugs still foul.
Main jet has been replaced with size 120.
Main jet is not the problem though.
Can't even get past 1/4 throttle let alone 3/4.
Could it be that the pilot jet is too large, or small?
Engine seems to have symptoms of starving for fuel off idle, only when you go to ride it though. Just bogs down, won't take off, won't take any throttle, lots of popping and banging, but it smells rich?
I'm certain there are no air leaks and the float levels are set between 23 & 24 mm.
The fuel and air screws are set at 1 1/2 turns out each, the air screws giving the highest idle at this position. This is correct right?
Carbs have been synchronised.
Electrical system is fine. It has been blamed for ages, had everything ignition wise replaced, still the plugs would foul.
Could it be as simple as the pilot jets being too large?
Any suggestions?
This is really starting to get to me and I am at the point of considering taking it to a shop.
Very unlike me!
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