adeezy9183 Posted May 18, 2004 Report Share Posted May 18, 2004 how do you remove the needle that controls the throttle in the top of the carburetor? i have tried everything and i know that you guys know what to do. i need to richen up that needle atleast 2 clips because my pistons burnt holes in them from a way to lean mixture. should i also change the jets in the carb too. right now i have a 172 and a 48. what are your thoughts? should moving clips on the needle be ok or should i rejet? Quote Link to comment Share on other sites More sharing options...
sredish Posted May 18, 2004 Report Share Posted May 18, 2004 how do you remove the needle that controls the throttle in the top of the carburetor? i have tried everything and i know that you guys know what to do. i need to richen up that needle atleast 2 clips because my pistons burnt holes in them from a way to lean mixture. should i also change the jets in the carb too. right now i have a 172 and a 48. what are your thoughts? should moving clips on the needle be ok or should i rejet? When you take the cap off and remove the throttle cable and spring, look at the inside of the top of the slide. There is a little bolt, like a 6mm or something, that you unscrew and the needle will come out through the top. I'd suggest rejetting, but you might want to get that hole fixed first. You might throw in a 200 and your 48 pilot should be good. As far as needle, 4th clip is where I'd start. That should be rich enough for you to not blow another hole. From 200, you could go up or down. I run a 230 right now and you could be at a 180, 172 sounds a lean to me. 180 or 185 is about the norm for the low end of the range. Once again, . Quote Link to comment Share on other sites More sharing options...
Ducman Posted May 18, 2004 Report Share Posted May 18, 2004 To get the cable off of the side you need to compress the spring, the 2 zip tie trick works great, next turn the slide upside down and the little cable retainer clip that is held in place by the spring will fall right out. Take a look at how it is oriented before removing so you will have a beter Idea of how to put it back. When fixed check the main jeting and richen if needed, never hurts to go a couple sizes larger, also check your compression and make sure the octance is high enough in the fuel you run to support the compression. If your shee ran awsome with the current jetting you may have just simply detonated due to low octane, lean conditions can also bring detonation into the picture as well so it's hard to say which one caused the holes. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.