i'm a noob and I have an sh .28 pullstart on my buggy and its giving me problems. it starts up ok but when i squeeze the throttle it cuts out. even if i try to accelerate slowly it dies on me. Also i am getting terrible runtimes. 125 cc lasts only about 1-2 min. I am only running slightly rich. I only have a quart through it. which needle adjustments should i make?

thanks in advance

Sound like your to rich,Close the HSN needle 1 hr at a time until the engine runs above idle.If you ran a quart of fuel through
it,It shuold be ready to tune for power.Just keep closing the HSN 1hr at a time until you have good power and top speed with
smoke coming out the engine at all RPM.

Your LSN might be to lean also. Try the pinch test.

Apollo put together a ton of info on tuning. It's a must read.

Here's the link:

http://www.rcuniverse.com/forum/m_5517128/tm.htm

thanks for the input guys, if i pinch the fuel line, the engine just goes faster without stopping or cutting off

im not making any reccomendations beacause ive only tuned one engine myself but would that mean its very rich? and is there a lot of liquid sputtering out of the pipe tip?

no, not much fuel comes out, barely any at all