tuning help needed
 

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

RE: tuning help needed
 

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.:D

RE: tuning help needed
 

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

RE: tuning help needed
 

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

RE: tuning help needed
 

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

RE: tuning help needed
 

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?

RE: tuning help needed
 

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