tbone4343

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I have a k&b 40 ringed motor with stock carb it starts and runs strong untill i remove the ignitor i changed plug and still the same im using os # 8 plug and 10% fuel cant figure it out any help would be great

speedracerntrixie

My Feedback: (29)

Sometimes you can have a bad plug right out of the package. If the engine dies right away I would look to the plug, if it sputters some then the mixture is possibly too rich.

tbone4343

My Feedback: (4)

i tried 2 new plugs and ran high speed needle in and out runs good untill i remove power to ignitor and it runs down and dies ?

speedracerntrixie

My Feedback: (29)

Have you adjusted the low speed needle?

tbone4343

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i have not i dont have the instructions for the engine ill do some research and try that as that could be it to rich on low speed

speedracerntrixie

My Feedback: (29)

Keep in mind that engine depending on year produced could have come with any one of four different carburetors. Posting a picture of the engine would certainly help.

tbone4343

My Feedback: (4)

i am going to a perry carb i am familiar with these thanks for your help on deciding on carb issue

tbone4343

My Feedback: (4)

well i finally got the perry carb for this motor i posted it is a 40 k&b its a 35 with a ring and throttle lever is on opposite side . i can replumb it but i did some research and its running way rich . the air mixture screw was out 3 turns and i put a small pin in hole and it was pretty much closed so i backed it out so at least it was open some what maybe 1/2 open . i have not tried it yet as its been cold and raining. any input on this adjustment?
thanks