Slow Jet Removal

1934 Views 9 Replies 7 Participants Last post by artmann, Jun 24, 2009

artmann

Discussion Starter · Jun 23, 2009

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Number 4 slow jet is clogged and impossible to remove. I pretty much stripped the screw slot and now I am at the point of deciding to leave that jet alone and button the carbs upin the hope that the one carb will not upset the running of the bike.

Any innovative removal method would be welcome and any input on leaving that jet as is will be helpful. Thanks

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JBz

· #2 · Jun 23, 2009

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if you have a wire brush pull out a bristle and work it thru the hole. followed by some goodsprays of carb cleaner. you can also spray down from the hole in the aircutoff chamber till you see a good stream coming out of the jet.I read your earlier post. Dont waste your time putting them together till everything is right. JB

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sandcastcb750

· #3 · Jun 23, 2009

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One carb will probably upset things. Those slow jets have tiny holes and if clogged, slow speed acceleration will result in lots of rattles.

Somehow, you need to remove the jet, or get another set of carbs. Some claim they can remove the 1980-81 press fit jet with an extractor, which is what you will have to do. The hole is deep, so maybe you can cut a new slot once the jet comes out.

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artmann

Discussion Starter · #4 · Jun 23, 2009

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Well I've been thinking about drilling it out and then using an easy out to remove it. I see there are slow jets available out there. Yeah this is a problem carb, it was loaded with severe white gunk and needed a real cleaning the other three were no probelm. This bike had been sitting for at least the last seven years and only has 12,618 miles on her.

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k1w1t1m

· #5 · Jun 23, 2009

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Have you tried boiling it in distilled water and then trying to poke a very thin wire through the jet? I used a single strand from a broken throttle cable. It took several boilings and much poking and prodding along with copious amounts of compressed air. Like everyone says don't waste your time getting it all back together.
You might try buying an individual carb. They are out there from situations like this where the whole rack is replaced but two or three of the old carbs are still good.

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artmann

Discussion Starter · #6 · Jun 23, 2009

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Oh yeah boiled, oiled, air and .010wire.

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RB

· #7 · Jun 23, 2009

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Small easy out should get it loose..jsut don't drill into it or the jet will be toast.

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chris in va

· #8 · Jun 23, 2009

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I found Valvoline Carb Cleaner to really work well on my carb rebuild. The Randakk boiling water trick didn't seem to work for some reason.

Just wear safety glasses..ask me how I know!

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FenderHead

· #9 · Jun 23, 2009

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artmann wrote:

Oh yeah boiled, oiled, air and .010wire.

It has been my experience with some seriously plugged jets/orifices over the years, that I could clear them with an appropriately small drill and what machinists/jewelers call a "pin vise".

Since you cannot get thru the jet at all, select a drill bit that is smaller than the equivalent jet from a good carb. Tighten it into the pin vise, and begin the process of gently twisting the bit into the blockage. Use a magnifying glass or jeweler's loupe to try to identify the nature of the blockage.

If it appears to be rather "glass-like", it is prolly sand or similar, and that jet is prolly toast. If the material seems to be giving up to the drill, proceed with the drilling until you are thru it, then decide whether the jet is serviceable. :waving:

http://www.widgetsupply.com/page/WS/CTGY/pin-vise-jeweler

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artmann

Discussion Starter · #10 · Jun 24, 2009

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Well it's out, in pretty bad shape but at least it isn't holding me up anymore. I had to basically hammer a screwdriver into the soft brass to create a place to hold and using pressure and a vice grip on the screwdriver I was able to twist it out. I'll admit that wasn't very delicate but sometimes ya gotta do what ya gotta do. I'm pretty sure I'll be buying all four slow jets just to be safe.

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