Can you get the bike to warm up? Turning the pilot screw on a cold engine is not going to give you good feedback - warm it up first.

52.5 is the stock jet for '97 on up - I don't think you have a jet issue(yet) - turn it out 2 1/2 times and then try to warm it up.

Also, get a candle and inspect your exhaust for leaks.

Skiprrdog wrote on 01/13/15 at 17:44:21:


Skiprrdog wrote on 01/05/15 at 19:01:03:


people need to know the history if they are to help.

I've seen old gas act like that.

justin_o_guy2 wrote on 01/28/15 at 20:32:14:


+1. However the new jets should be able to pass pancake syrup.

"Pancake syrup"...   ....

Good one, Gary...  ...

Thanks for the replies, everybody. Pancake syrup aside (you guys are making me hungry...what were we talking about? )
The bike is bone stock, except for the dyna muffler I just put on, which still has the baffles, and it has a new, stock air filter. Gas is less than a week old. When I got the bike, it had 145 main jet and 52.5 pilot. I cleaned the carb no less than four times; Pinesol soak, Gunk soak, carb cleaner and compressed air, then several cycles in the ultrasonic cleaner. Put new float needle and seat in it. Valves adjusted, new oil and filter. I looked at the plug from the short run yesterday and the end was kind of a light grey. This morning I took the carb off again, the float is free. I left the new 150 main jet in it and swapped out the pilot for a size 55. And I took out the big white washer on the jet needle and put on the three small metal ones that Lancer sent. This morning I was able to start it and let it idle, but only with the idle adjustment screw cranked all the way in. And still, trying multiple settings on the air fuel mixture from all the way in to 3 1/2 turns out did not seem to have an appreciable effect. Like I said, I was able to let it idle for close to ten minutes, throttle cracks would rev the engine fine, no hesitations or bogging, but some popping when it came back down.

One thing I should mention, not sure if it is a problem, but on my original carb dip, when I went to the store, I bought some no-name instead of the Pinesol brand; compared the ingredients and they seemed to be the same. When I took it out of the dip, it had turned the carb body a very dark, and sort of chalky grey, hence all the subsequent cleanings. I don't *think* it is a problem, but it definitely changed the way the outside of the carb looks.

I did a quick video of it running this morning...Ill see if I can get it on 'you boob' later...

Idle adjustment screw all the way in tells me that you are cutting the fuel flow as much as possible at idle.  I am assuming that our idle adjustment is a fuel metering screw instead of air metering.

If this is true, I'd say the pilot is too big.  If I'm backwards and the screw is air metering, then the jet is too small or blocked somehow.