MOPED ARMY

Leave the jet, but raise your needle, move the clip down one more notch. If that doesnt help then maybe move up another jet.

Aside from needing to tune the clutch you might be too lean. Techno pipe and foam filter even on a stock cylinder is gonna need a higher jet than stock 64. My guess would be 68-72 range but you’ll need to see what works best for your setup

Mismatched no low end set up that has Wrong jet, wrong atomizer, wrong filter, no lowend pipe and not tuned clutch,

Use a 222 atomizer in your 14mm bing, around 70-72 jet, metal mesh filter, tecno circuit pipe, get stiff kickstart springs 2-3 turns in from flush,

Maybe until you get a pipe that has more low end change the 217 15mm bing atomizer to the correct 14mm 222 atomizer that comes stock on a 2hp square port cylinder, get rid of the restrictive especially when wet form filter, get a mesh one

And like it or not you have to tune your clutch so you could jet when in the pipe/powerband not before so you won’t have goofy jetting when you’re in the pipe,

To me Low end power is a must on a moped for a quick takeoff to keep cars off your butt so I have no love for bullet or boss pipes on stock cylinders

I did try the same set up as posted but with a Atomizer—222 ( I don’t remember the jet)and it ran really bad with no top end and acceleration Was about the same. I’m going to a treats bing metal hi flow filter with a fatter jet and the needle up one. It’s wet so no test riding till it’s dry so I’ll post back any results.

Thank You much for the help

Now it's wet and too cold to even think of riding.

The one jet size above would be for cold temps and a 5 is pretty hot. 6 or 7 if cold weather a colder plug works better at WOT.

Update

Installed Atomizer 222

Jet 71

Needle-- one line/band now on full rich

treats bing metal hi flow filter

It runs but idles very low and will die even with the idle screw all the way in so I need to check timing and will do the clutch once I know the engine is right. I might have to lean the needle one grove.

I think you may be at the point to start looking at the bing slide mod.

The right jet for top will be so fat at idle, even with the best needle/atomizer.

The slide mod takes away a little material right where the vacuum pulls fuel at idle, allowing the idle adjust screw to actually cause a difference in idle mixture.

Very quick and easy to do.

I forgot about that. you might know I have two modded slides in the box, i think i need to get closer then drop one in.

So where did that put your timing?

Ok it's at 19degrees. It still idles a bit low for me but it works. What should the idle be at?

Awesome. I'll give some timing adjustments a shot after i put a new float in.

While talking aboot bings. What is the purpose of the whole in the #51 slide?

I used a different browser and found the info

Thank You all for the help.