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post #1 of (permalink) Old 10-05-2003, 01:34 AM
DueNorth
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Paper Clip Carb Mod?

I got my parts from Petroworks to do the Carb Vent Tube fix.

When my friend opened up the carb to do the mod, he found an interesting "mod" one of the previous owners did. Please view the attached images. [img]images/graemlins/confused.gif[/img]

It seems like one of the previous owners glued a paper clip to prevent the carb butterfly valve from closing all the way? Was there something broken, and it was decided to do a McGyver act on it?

The Zuki seems to be working fine, but my friend is afraid that one day the glue might come off and the paper clip would detach... causing engine problems. Would it be OK if we remove the paper clip?

Oh, in the picture I have the vent tube installed. It didn't seem that hard to fit in. Didn't require a hammer. Did we do something wrong? Just in case, we put a bit of gasket sealer around it to tighten the fit.

Thanks for any help you can provide.

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File Type: jpg 1197668-carb1.jpg (68.6 KB, 144 views)
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post #2 of (permalink) Old 10-05-2003, 01:35 AM
DueNorth
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A more detailed image...

Here's another more detailed image.
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File Type: jpg 1197669-carb2.jpg (72.4 KB, 152 views)
post #3 of (permalink) Old 10-05-2003, 05:10 AM
 
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Re: A more detailed image...

That is a nice riggity due north ! I would pull it off in the fear that if the paperclip came loose that it could indeed fall in the carb and cause some serious troubles . When I put in my vent tube all it took was a light push and it went right in . I am curious though why the previous owner did the paper clip trick . Maybe he was running too rich ?
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post #4 of (permalink) Old 10-05-2003, 08:58 AM
 
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Re: A more detailed image...

the clip is there due to the fact that the choke is closing to far it needs 100 thousandth gap that can be adjusted and put back in properly.if you dont know anything about the carb find someone that does it can be a pain.there are a fiew adj.that can fix this prob.
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post #5 of (permalink) Old 10-05-2003, 09:04 AM
 
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Re: A more detailed image...

I think he put it there because he either didn't know how to adjust the choke pull off or the choke pull off is broken. When the engine is cold and running the choke plate should have a 1/8" gap like it does in your picture, except without a paperclip.
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post #6 of (permalink) Old 10-05-2003, 05:32 PM
 
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Re: A more detailed image...

Zukzilla and I just did one yesterday. Everything worked fine after warming it up. The carburetor had just been rebuilt by someone but it ran to rich upon cold setup. The choke valve was closing completely but needs to remain open .100-.125". I would remove the paperclip immediately so as not to cause damage to the motor. After that the tab on the fast idle cam will need to be bent to the correct angle to get the correct gap on the choke valve. This is hard to due but maybe you could find someone close by that can help you.
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post #7 of (permalink) Old 10-06-2003, 09:55 AM
DueNorth
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Re: A more detailed image...

OK, so most of you recommend that I remove the paper clip. What happens if I don't maintain the gap? Would it just be harder to start in cold weather? Or I risk having a hard time starting the engine overall.

Now, I can pretty much start the Zuki with one pump from the accelerator before starting it up. Would I just need to add in another pump if the valve is fully closed?

Thanks!
post #8 of (permalink) Old 10-06-2003, 10:25 AM
 
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Re: A more detailed image...

With it closed you wouldn't have to pump it at all. It would run rough and rich untill the choke shuts off.
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post #9 of (permalink) Old 10-06-2003, 09:59 PM
 
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Re: A more detailed image...

Mini's right. Just change the plugs a litte more often. But no it won't hurt anything, just run rich on choke (stinks).
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