Tuning help/suggestions

[Matt@RFR]

is the squirter # the diameter in .0xx"? if so they seem to go 32 and a 35

I've never measured one, but yeah, I believe that's how they're sized. They're available in 28, 30, 31, 32, and 35 (for gas).

There's also two different styles of squirters...the normal one that you have, and a tube style. Just like the name implies, the tube style expels fuel out of extended tubes. I dunno what the actual net effect of this style squirter is, but they can be usefull for fine tuning.

If you have 31's now, I would go to a 32pri and leave the secondary alone. If that doesn't do it, bump the sec up to a 32. If it's still not enough, go 35pri...etc.

If you still need more fuel from the accelerator pump after going to 35/35, you'll need to step up your accelerator pumps to 50cc pumps, as opposed to the 30cc pumps you have now. Unless you have a LOT of motor, you won't have to do this.

Also, keep in mind that when you do find a squirter combo that works, they will more than likely work even better with a different pump cam. It's a never ending battle it seems, but it's so worth it in the end.



Allways check your pump actuating lever clearence after changing cams.

I recommend one Advil and two Ibuprofen for sore backs.

[gmachinz]

The "dog-leg" boosters are 90-degree and promote a better fuel signal at idle, while the annular style are more for racing (4150 series). Also, what PV(s) are you running? Too much lift at the pump cam will drain the accelerator pump too quickly as Matt said-you will need a bigger kit (50cc) and then go to a larger squirter, then you'll most likely need to go upstairs with the jets, too...say around a 76 and an 84 sounds nice. You definitely have a lean stumble. -Jabin