Quote:
Originally Posted by moparrob
Well I just put some 117 jets in and it seems to be running better for the short ride tonight. This was achieved by drilling out the stock 108 jets with a .046" drill bit, yielding 1.170 mm = 117 jet.
For those interested in making their own new jets the following sizes apply:
.043 = 110 jet
.044 = 112 jet
.045 = 114 jet
.046 = 117 jet
.047 = 120 jet
I will check it out on a longer ride this week and report back. Fingers crossed.
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Drilled to 117 will not flow the same as a 117 jet. If it works for your engine it's not a problem, but everyone should know that buying a 117 is unlikely to yield the same flow as one drilled to 117.
BTW, it's a jet not jets.
You can't suck all the fuel out of the bowl unless there's a restriction not allowing fuel in, at that point it would bog out and not just hiccup. If the float level is low or there's any restriction in the fuel delivery to the carb there's a possibility that the level could reach a point of being just a hair off between good and not good giving inconsistent mixtures so I'd check them just to be sure. Unlikely to be the air injection. Raising the needle along with a bigger jet might make the mid throttle too rich. Once you determine the proper main jet I suggest doing a mid throttle cruise and reading the plug.