Operation: Red Hawk - Skyd's Build thread

Skyd · 05-09-2021, 07:29 PM

Quote:

Originally Posted by Megadan

Possible it's too big, but not by much. I would look into the idle mixture, but do so after riding the bike around for a solid 5-10 minutes so that you know for sure the engine is fully up to temp. Idling for 5 minutes won't be enough.

I have a 38 pilot on my bike and I am less than 2 turns out.

Another suggestion. Leave the pumper cable end disconnected for now until you have the jets figured out. The accelerator pump can mask or exaggerate tuning issues.

The cable for the accelerator pump is disconnected

I actually thought of that all on my own, LOL. Anyway, I'll give the mixture screw a try it didn't occur to me it could be causing the issue. I'll give that a go tomorrow night after work. I'm at 2.5 turns out. Thanks!!

Megadan · 05-09-2021, 07:32 PM

Quote:

Originally Posted by Skyd

The cable for the accelerator pump is disconnected

I actually thought of that all on my own, LOL. Anyway, I'll give the mixture screw a try it didn't occur to me it could be causing the issue. I'll give that a go tomorrow night after work. Thanks!!

That makes you smarter than the average coconut for sure.

Do you have a way to turn the idle mixture while the bike is running? That is honestly the most annoying part of the whole process.

If your pumper carb came with an idle mixture screw that has a little knob that sticks out the bottom you can actually put a bit of fuel tubing on it so that you can turn it with your fingers. Just make sure to put a mark or 2 on it to help keep track of position.