Are these OK??

[Mahalaleel]

Once I've got the nubs out, what can I do to sharpen the screws? I've considered sandpaper, a pocket knife, teeth, etc :P

[wmhudgens]

I have frequently, delicately-- very delicately-- cleaned out pilot orifices by using a 4-5" long piece of old "high E" string (the thin one) from one of my guitars. Bend the end to make a 3/8" long leg at about a 45 deg. angle, turn the carb upside down, squirt some good carb solvent into the holes, and then noodle the wire straight in & out a few times. Don't wiggle it, since that might re-size the holes!

[Mahalaleel]

That's a good idea...I don't have any extra violin strings around though, usually I do! Maybe it's time to replace the e string.

Any ideas for resharpening the screws?

[Mahalaleel]

To resharpen mine I clamped the screw into a drill then put a dremel with a sharpening stone into a vice and spun both while lightly touching the screw to the stone... Worked pretty well

The one on the far right came out way too short because I made the stone go into the screw instead of away from it.

I have a drill but no sharpening stone. Is there some other way to do it? How soft are they? Could I use a knife? Sandpaper?

[Billy Ricks]

It would mean spending a few bucks but maybe a fish hook sharpener.

http://www.edarts.net/access/hookdart.shtml

[Nessism]

I think a skilled person could sharpen them with a file and drill motor. You don't want to change the taper angle, just sharpen the point like a pencil so the point moves back and the taper starts near the threads. Nothing to loose in trying...

[Mahalaleel]

Alrighty I'll give that a shot :P

[Mahalaleel]

Turns out I don't really have a file, the skills, or the time in this next week to do this myself. I have a lot of exams to take/study for. Is there someone here on the forums that has experience doing it? I could mail them to you and paypal you some moneys.

[Mahalaleel]

Is there someone here on the forums that has experience doing it? I could mail them to you and paypal you some moneys.

If anybody is willing to sharpen my pilot jets I would pay shipping both ways plus ten bucks or something. Any takers?

[Adler]

I would do it, having done it before, but I don't trust my workmanship to be perfect. I could easily ruin one.

[Mahalaleel]

If you're willing I am. At the very worst I'll have to find a new one or two, right?

Will a first-class stamp get something to Toronto from Utah?

[Mahalaleel]

After various efforts I have failed to get the little nubs out of the carbs. Any ideas? I've tried a razor, sharpening an allen wrench, wire, and nothing works.


With a grindstone I managed to bring one of the screws to a point, it's not perfectly round but it is sharp. Is that OK? Should I do the other three even if they come out kind of ugly but sharp?

[Turtleface]

Mike's XS in Florida might have those bits. I replaced all four of mine this summer. Google Mike's XS, should be the first return.

[Adler]

I wonder if any other carbs have similar screws that could be substituted or adapted.... Quick ebay search shows these....

http://cgi.ebay.com/ebaymotors/KZ750-KZ-750-MIKUNI-CARB-CARBURETOR-PILOT-SCREW-76-79-_W0QQcmdZViewItemQQhashZitem439ef2beeaQQitemZ290429517546QQptZMotorcyclesQ5fPartsQ5fAccessories

http://cgi.ebay.com/ebaymotors/XS650-XS-650-XS500-500-MIKUNI-CARBURETOR-PILOT-SCREW-76-_W0QQcmdZViewItemQQhashZitem45f528a5bcQQitemZ300465825212QQptZMotorcyclesQ5fPartsQ5fAccessories

[Mahalaleel]

Thanks for those links guys!

Only thing remaining is how to get the little nubs out. I've scratched the insides of the carbs trying .

I remember finding a thread a while ago that was very detailed about methods of removing the broken off nub but I can't seem to find it anymore!