TY250 R (Pinky) Fuel problems

[Shawn James]

Hi all at the Brains trust, Ive reacenty taken pocessions of a Pinky, was very happy to take it out for its first day on the weekend, all was good untill after doing a few loops of a hill climb section and the engine started to "lean out' like a two stroke does when its running out of fuel.
It did have plenty of fuel.
It wasn't a hot day.
My question is, would doing the uphill sections cause this or is there another factor, its running a OKO flat slide carbie, all alse is factory.

Ideas???

Thanks All.
Shawn

[Bully fanatic]

As it happened after a couple o hill climbs I`d check the float height. The OKOs are fussy on the float height I have found. Make it level with the float bowl mounting surface with the carby upside down.

[Shawn James]

Thanks Bully, I'll give it a go first.
Shawn

[OKOAustralia]

Carbon buildup, ever been decoked?...The float level on the OKO should be measured with carb upside down at about a 45 degree angle, 22mm.....I've got a pic here somewhere showing how..Let me find it

Denis