The Toomey will possibly call for a #260 or #270 main, needle in middle slot and a 32.5 pilot jet.
There must be no airleaks and the pipe must be sealed.
The float level must be set at 20 - 21.5mm and the idle set correctly.
Idle adjusting.
Start with air screw 1.5 turns out.
Set idle screw so that it has some sort of idle. With TORS it is the big screw under seat on top of unit. With no TORS is is the brass screw midway down carb body.
Warm up motor and then set idle screw for a faster idle, 2000rpm+
Adjust air screw either way to get the fastest idle.
Adjust air screw a little at a time leaving 10 secs or until the motor to responds.
Re adjust idle screw for desired idle .
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The air filter also can need an increase of one or two jet sizes.
With the air box lid on and the snorkel still attached I would start around a #290 -#300 main jet.
I always start big and plug chop to 1 jet size richer than perfect.
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