Is any one having any needle problems in there carb.My needle broke for the 3rd time in 5 months.It pissing me off.Does any one now if there is a carb recall on the needle or somthing.Im buying them from the same place.I paid $10 for them.Do you think its the 350 jet in it thats causing it?

 

Thats unusual. Hve you still got the stock carb on it? If so I would recomend getting a kehien for it. I put one on my 250 and zilla and love them.

 

Actually it does have the stock carb.And it has the #350 jet in it and soppose to be 400 but i dont think thats the cause of it.

 

If you are positive that you are installing the needle correctly (making sure that spring pressure holds the needle down), then I would assume your slide is in need of replacement ($35-$45). The material that the stock slide is made from seems softer than others. I had to replace my LT500 carb slide when the idle screw wore a notch in it. Either your outer slide surface or the hole for the needle may be wore to the point that the fit is sloppy. Thus, the needle may not always line-up with the needle jet causing the needle to break when the throttle is quickly released.

 

The circuitry in the stock '87 mikuni carb is very poor, I certainly wouldn't put any money into it at this point... Sounds like you've got some pretty severely worn parts.

Either find a newer TM38 or better yet, the newer TMX mikuni or switch to a PWK (Keihin) carb. You could really benefit from a larger carb anyhow (41.5mm) It will make a pretty big difference in top end perf.

Nice signature by the way.... Sure sounds familiar [img]i/expressions/face-icon-small-sad.gif[/img]

 

Ok now since its old and it an 87 which it 1st came out, I think Ill just get it rebuild.So I dont have to worry about it breakin again.

 

Better tahn that i just bought a new carb for $180.whoo hoo.[img]i/expressions/face-icon-small-smile.gif[/img]

 

Now i just have to adjust the air mixer screw. Dam it it wont run.Got to get a new plug

 

Yes got it running.rode it and dam it runs better.Dam my chain broke and folded 3 layers of chain between the sproclet and shifter.and dented the sifter down.I guss i have to much tork.hehe got to buy a stronger chain.