Broken pilot (idle) screw tip fix. AWSOME!!!

[Greasey Fingers]

Broken air fuel mixture screw tip FIX (pilot air idle screw). AWSOME!!!

I gotta share this with you guys, I cant belive it I managed to push out a broken tip from my carb. I am stoked and no drilling. Heres what I did...

Totally stripped the carb so all I was left was just the carb body, make sure you remove any rubber seals etc.

Used a heat gun and directed heat in the two places pictured below. You could probably use a propane torch?

 

[Greasey Fingers]

Then I got a sewing needle and checked it would fit through the other carbs hole to get the correct size. I just wanted the fattest one I could that would still fit through so I had as much strength as possible.

Edit: Cut the point off the needle first, you don't want the pointy end.

I cut a 7mm piece off the sewing needle.

I stuck it on the end of a pair of adjustable pliers (pictured below) with a bit of blue tak just so I could line it up in the hole.

Then straight after I applied the heat I carefully placed the needle in the hole and gently applied pressure and progressively applied more and more. Just make sure you line up the needle as square to the hole as possible.

It took two goes of applying heat and BANG she came out

The most important part of this job is patience.

This was stuck in there really bad I had already pretty much given up on the carb.... it was a last ditch effort, words cant express how awesome it felt when she popped out

 

[xschris]

Glad you got it out

 

[Greasey Fingers]

oh man so am I

 

[drewpy]

Good job.

for future reference, just be careful it doesn't get too hot as the mazak will melt

 

[Greasey Fingers]

Good call, just for anyone else using this method I didn't get the carb red hot or anything I just heated until it was too hot to touch. I maybe held the heat gun on each area on high for about 30-45 seconds from memory. I think a few heat cycles would help too possibly, so it could be worth to just heat it up and let it cool down a few times first.

 

[arfingdog]

OK, it's over 5 years later, but this method has worked for me! Thanks @Greasey Fingers!