what size jet do I need?

[steven0356]

I am trying to figure out what size jet I need for my 65 305 CA77. Someone has put a 27 in there and I am having problems with my plugs fouling, so my guess is that the jets to big.

The bike mufflers have no baffle and I am using the air filter below.

Anyone wont to guess what size a jet I might need?

by the way what size is the stock jet?


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Thanks as always

Steve

[Hahnda]

Are the plugs fouling while riding or idling?

Stock should be a 120 main and a 35 slow if I remember right.

I also run that same filter with open mufflers. I think I'm running a 125 main and stock slow. Also made an adjustment to the needle. BUT I am running rich at high speed. I need to check my main again and probably drop it down to a smaller size. I might be running a 130 right now can't remember. Anybody know what size main comes in the Keyster kit? I think that is what I am running.

[steven0356]

The plugs foul while riding.

Thanks Kevin

[Hahnda]

What are you running for plugs?

D8HA or similar?

does the bikes pull better when you let of the gas at full throttle?

[joeweir1]

Try adjusting the main needle up one notch.Mine was fouling and that fixed mine.

[LOUD MOUSE]

IGNITION. ..............lm

The plugs foul while riding.

Thanks Kevin

[steven0356]

What are you running for plugs?

D8HA or similar?

I will check it out but i think thats the plug.

does the bikes pull better when you let of the gas at full throttle?

before the plugs foul the bike runs like a bat out of hell. it starts right up and runs strong. then I get about 5 miles down the road and one of the plugs goes bad. it has a black oily look to it but it smells like gas. Also the bike has very good compression and does not burn oil.

very frustrating

Steve