Dip pulling off in first

[Lamaddict]

I noticed it on a few engines and it drives me mad. It's pulling away in first and the revs drop a bit. I once tried adjusting a slide but that didn't work. Once into 2nd etc it's fine. Set up at the minute is a GT186 (best smallframe Kit, IMO) 25 Dellorto and Clubman. Gearbox li125 16x46.

[Chris in Margate]

Carburation is probably too rich at full revs. Not noticeable in higher gears because engine load doesn't allow it to rev so high.

[thackers]

Check your spark plug gap.

[shocky]

Is it just as you twist the throttle , like its gonna stall or run out of petrol ?

[Lamaddict]

Yes it's worse when cold and it feels carb related. As I say, I noticed on a few scooters.

[mick1]

are you using a lightened flywheel ?

[Lamaddict]

^ yes but it seems a carb adjustment would be possible but where and how? I did reduce the angle of a slide once but it didn't make any difference.

[shocky]

Those symptoms can be the airscrew causing it be lean or the pilot jet is to small

[eden]

I agree with shocky on this one. To test it try pulling away with choke on.

[Lamaddict]

Thanks all, I have a 50 pilot jet I'll try a 55.