toomey plug chop
- Thread starter snake61047
- Start date
a toomey and open airlid and 60 degree temps i dont see how it would be rich?? do you have another angle of it?
warmed engine up. switched with new plug. ran wot for about 1/2 mile. pulled in clutch and killed it. coasted toa stop and put old plug in.
what needle and clip setting ?
genuine mikuni 270 main jet ??
check your plug boot to plug connection, sometimes an electrical issue will act like jetting, especially at high rpm under heavy load.
try it again with another new plug
genuine mikuni 270 main jet ??
check your plug boot to plug connection, sometimes an electrical issue will act like jetting, especially at high rpm under heavy load.
try it again with another new plug
needle is Toomey recommended 5jfj34 on 3rd groove. air screw out 1 1/4 I asked for genuine mikuni. They told me it is but is says 270RD on the side. I bought a 250 270 290 and a 300. I looked and onlt the 300 and the 250 have the mikuni symbol on the top
throw that toomey needle out the window,
replace with the stock needle on the middle clip position.
i just put a toomey on my black blaster on friday, stock carb, head mod, open airbox with uni filter, stock needle on the middle clip position and even left the 340 main jet in it from my right bend pipe....no hesitation or bog anywhere.
that needle is your problem !
replace with the stock needle on the middle clip position.
i just put a toomey on my black blaster on friday, stock carb, head mod, open airbox with uni filter, stock needle on the middle clip position and even left the 340 main jet in it from my right bend pipe....no hesitation or bog anywhere.
that needle is your problem !
oh ok, most others who suggest different needles/settings other than stock are incorrect, stock needle works best, whatever the # is.
that is the needle that Toomey recommends but it was already in there. what does the 270rd mean
I know aftermarket jets suck for mikuni
I know aftermarket jets suck for mikuni
yup that's them. box even said EBC. I questioned it and they said it was an old box for brake parts.
Whats the big diference between them. im going to put my 250 mikuni jet And see how lean it is. I am at 989 ft above sea level.
aftermarket jets are not made to the same quality control as genuine mikuni and keihin jets.
the 250 is going to be too lean, toomey recommends a 310, i believe thats what they supply with their full kits that include jets and air box vents, an open airbox could require more.
i have a 340 in mine right now with no bog/hesitation at all
my best guess is a 310-320 should be about right.
the 250 is going to be too lean, toomey recommends a 310, i believe thats what they supply with their full kits that include jets and air box vents, an open airbox could require more.
i have a 340 in mine right now with no bog/hesitation at all
my best guess is a 310-320 should be about right.
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