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Carb Reassembly Question

Fuel System: Gas (Petrol) tanks, Carburators
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obscure44
honda305.com Member
Posts: 25
Joined: Tue Jul 29, 2008 2:17 pm
Location: Omaha, NE

Carb Reassembly Question

Post by obscure44 » Wed Aug 27, 2008 1:59 pm

Related to my other post (http://www.honda305.com/forums/viewtopic.php?t=3212), I have a question with reinstalling the carb. There's a steering-wheel-looking clip that goes into the slide too, but what order do the parts go in? Right now I've got (from bottom to top): slide, steering-wheel-looking clip, then needle w/ clip. But a parts page I saw recently looks like maybe the needle goes in first, then that steering-wheel-looking clip? If I had it backwards (e.g., the big clip in first, then the needle w/ clip), would that make the carb run rich??

http://www.cmsnl.com/honda-c72_model743 ... t/E12.html

Thanks!!
David

onchiman
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Posts: 77
Joined: Tue Jun 10, 2008 1:18 pm
Location: Adirondacks

Post by onchiman » Wed Aug 27, 2008 2:50 pm

If I understand what you're asking, then the needle with attached "C" clip goes into the slide first then the retaining clip (as you say the steering wheel shaped part) goes in on top of that. It most definitely could cause a rich condition at lower throttle if the retainer went in first then the needle because it would tend to lift the needle up out of the jet , earlier in it's travel. You'll see the needle has several grooves in the top with a "C" clip in one of them. That is where adjustments are made to enrich or lean out the jet needle setting. Moving the "C" clip to a groove toward the "pointy" end of the needle has the effect of lifting the needle out of the jet a wee bit to flow more fuel (rich). Moving the clip away from the pointy end lets the needle sit further down into the jet closing down the fuel flow a tad (lean).

obscure44
honda305.com Member
Posts: 25
Joined: Tue Jul 29, 2008 2:17 pm
Location: Omaha, NE

Post by obscure44 » Wed Aug 27, 2008 6:27 pm

Thanks, I did have it upside down. Unfortunately it's still running rich at idle like before.

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