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I'll post a picture of the offending plug brass tomorrow.

Thank you



5) Float/Float valve/Float level – Your owner’s manual has the correct level and procedure for calibrating your bike. Here are some symptoms that would indicate the need for float adjustment.

My float looked perfectly level.

A) If float level is too high, the float bowl overflows out the drain hoses, and fuel often blocks the air passages that allow the carb to de-pressurize. This causes a bog, or hiccup over large hits.

B) If float level is too low, the engine starves for fuel off idle, causing a “boooooowang” sound very similar to a pilot jet or air screw set too lean.

I get bogging at 30mph. take off is great.

5) Always check for clogged carb vent lines. Clogged lines will cause hard starting and bogging when the motor is hot. They can also cause erratic running that seems to mimic a mis-adjusted float, but worse. Performance will seem rich and acceleration will be sluggish off idle.

Starts easy, so probably not this.


B) Motor knock knock knocks at idle when hot. Try solution A. If problem persists, perform a “leakdown pressure test” to check for ignition crank seal leakage.

Not sure about this at all.

You are reading my mind or something, I was thinking, I have fuel, and air, I need consistent spark. So I am looking at replacing coil/plug wire. I have a new one but it doesn't fit the spark plug that goes in scooter.

I would need to get a half inch longer or more spark plug or order a new stock replacement from lance dealer which can take a very long time to come in.

I also have 2 spare CDI's, with one being adjustable.

OK, new fuel filter installed, still bogging. I don't know where to go now.

I've cleaned, I've checked for leaks in vacuum and gas lines.

I've checked that the fuel is getting to carb, i need to take bowl off, start scooter and make sure fuel is getting in bowl.

I didn't clean the line coming in on the carb. I'll do that next.

I checked the diaphragm. I bought new, I'll try to install. I tried moving the needle up. This didn't help.

Tried larger jet, from 110 to 115. Still bogging at 30mph.

Checked for obstructions in air intake, and that air filter is good.


Re checked the valve clearance.

Checked for air leaks around the carb and intake going in to the engine and around the air box, and air intake.

I'm lost. If the diaphragm doesn't fix it and there is no problems at the fuel inlet going to bowl I have no where left to go.

I live across the river from St Louis, the entire metro area is ethenol gas, only one place that doesn't and it's far away. So sea foam a cap full every tank?

I think I should have gotten more involved in checking and cleaning the carburetor.

I still think I need to do this.

Start at the fuel tank line and check fuel filter.

Take off the lines. Make sure they are not clogged.

Do the same for vacuum lines.

I could use a vacuum and block off one end to make sure it is still a good hose. If it leaks It wouldn't completely collapse. I did the whole carb cleaner on the vacuum hoses, air box, air intake to the carb, and the entire carburetor. No change in idle.

I checked the bowl float. It is as level as I could make it.

I need to spray carb cleaner down all ports in carburetor still.

I'll take off the Auto choke, spray in there too?

Ok have adjusted the carburetor fuel mixture. I turn it all the way in back out about one and a half turns, I tried to make it more Rich by turning in another half turn but it was too much having the just the idol. I then turn your back in and then turn it back in one more time buy half turn and the idle and back up a little bit and then I stopped. So it's getting less air now put more fuel because the jet is now 115 instead of a 110. I will text you tomorrow and update on how it went.