[Angus67]

Grrrrr. I have a 200 cc witha vm26, 22.5 pilot, 110 main. Needle fourth notch. I cannot for the life of me get this tuned in! Compression is 180, valves set correctly. Nice blue spark. I start out one turn on the idle mix, and it just snaps and farts out the exhaust. No “snicking “back thru the carb. When i pull the choke, the idle steadies, but is way high.
In my experience when the choke is pulled on a warm engine, it should stumble because it has tto much fuel, too little air.
Im 5 turns out on the mix, and shouldn’t be that far out. Nothing changes except easier starting.
I have not history on this bike, nor does the previous owner. Could it have been kitted to a 250cc? I have a 25 and a 27 pilot, but all info points to 22.5 or 25.
When i try the 25, same issues.
Really frustrating
Im guessing i have the idle in the middle.
And it still wont start with a air filter..
Its so difficult to adj the mix while its running. I had to modify a extended mix screw so it wouldnt hit the starter. I cut a groove in it for a screwdriver, and have to use a flexible screwdriver to get at it.
Ive tunned many bike carbs, mostly cv’s so im no newb
What am I missing?