WTP 60 engine not running right

[Taru_spammy]

Hey everyone, I'm new to the sport
Iv got a kart with a WTP60 engine, I know my way around a engine but this is causing me some serious head aches, I can get the engine to start but it rev's really high, iv tried setting the carb with the rule of adding up to 2 on the needles, but this does nothing, iv stripped the engine completely down and rebuilt it, new gaskets, I haven't put a new piston in as I don't want to just yet just incase the engine is no good, iv stripped the carb and rebuilt it, with new membranes and gaskets, now the only way I can get it to start is by disconnecting the engine breather from the carb, other wise it just chucks fuel out the air filter side, I'm kinda at a loss, any ideas are greatly appreciated

Thank you
Sam

 

[Smerft85]

Is there any possibility of the float being stuck open in the carb? Simplest reason I can think of why fuel spits out of it. If you can post a few pics of the linkage to the carb maybe we can spot something that's causing the high rev.

 

[Mr_mcrib212]

just buy a new carb

 

[Smerft85]

just buy a new carb

That's not always an option for everyone. If it's a good carb that needs a 5 minute fix why spend money you dont have to?

 

[mckutzy]

Hello and welcome
He is in the UK... so parts are going to be a bit expensive for him... And also its a 2 stroke( I just had to look this up, cause I had no clue what it was...)

Off hand I found this place.. in the UK, Im not too sure if it helps..
https://www.tal-ko.com/online-shop/wtp-60-parts.html

Im sure the more 2 stroke guys will chime in here soon to let you know...

 

[Brianator]

Sounds like an air leak. Did you replace the crank seals when you rebuilt it (and all other gaskets)? A leak down test after rebuilding? Stock intake/ carb/ exhaust? Have you done any modifications just before it started giving you a hard time? 1.5 turns out on the mixture screw and the jet needle set in either the middle postion or one notch on the rich side (needle up - clip down) is a good baseline for most 2 strokes. Throttle valve should show only a millimeter or 2 of a gap to be close to a stock idle setting. Is that a reed valve or piston port motor?