Jetting beginner

[lgr]

Fresh plug after a short ride behind the house

[lgr]

Ok I'm off for a ride with 172 main. Its pushing ninety and humid so well see how it goes.

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[Jakobi]

I think you'll find the 172 is about right. A 180 was way too big with that particular needle. Even though the main supplys fuel mostly at WOT (where it is the primary circuit) it will have a lesser effect through the rest of the rev range too.

[lgr]

I am pretty satisfied with the way it ran.

The next problem I need to address. It will suddenly load up and nearly stall after steep decent or steep ascent under low rpm heavy load. I'm thinking this is probably due to my float level being off and over fueling?

Fuel consumption was much better than before and it pulls like a freight train down low.

Also I'm using a non resistor plug (b8egv) so it may be messing up the ignition.

Perfection is so close I can taste it

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[Jakobi]

Did you check the float height? Recommended details back in my first post.

[lgr]

Well, I looked at the float height but I can't say I checked it, since I had no small measuring tool. It will be done tomorrow.

I appreciate the help and input very much

[Jakobi]

Sounds like you're pretty close now too! Good work mate!

[n_green]

Originally Posted by lgr

Well, I looked at the float height but I can't say I checked it, since I had no small measuring tool. It will be done tomorrow.

I appreciate the help and input very much

Make something like this:



I used an old plastic card and the stuck the paper to it and laminated it. I clamp it in the vice level and then lower the floats onto it whilst blowing air through the inlet hose til the valve shuts off. Then you eyeball the measurement and adjust to suit from there.

[lgr]

Well I took everyone's advice to the best of my abilities, ending up here
172 main
NEDJ needle clip 2
40 pilot
Airscrew 1.25 turns out

New reeds installed and it runs so so nice. Super smooth lots of bottom with really no transitions or steps in power. No loading up on the test ride either
Made a tool as per ngreen's pic to set my floats. They were almost dead on.

Thanks a bunch folks