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Carburetor stuck on full throttle - CA77

Fuel System: Gas (Petrol) tanks, Carburators
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Michael Stoic
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Carburetor stuck on full throttle - CA77

Post by Michael Stoic » Mon Aug 21, 2023 8:31 am

[ Posting for newly registered user - Msmall1154 ]

Carb at full throttle on 63 Honda Dream after reassembled

I took my carb apart on my 63 Honda 305 dream CA77. When put back together it is stuck at full throttle. What did I screw up?

Michael Small

deuce_7
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Re: Carburetor stuck on full throttle - CA77

Post by deuce_7 » Mon Aug 21, 2023 8:30 pm

Here are a couple of older posts from the Honda 305 forum that can be a good place to start:

http://www.honda305.com/forums/viewtopi ... a3d#p95767

viewtopic.php?t=36

Let us know what you find out,
1967 CL77 305 Scrambler

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Muddy
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Re: Carburetor stuck on full throttle - CA77

Post by Muddy » Tue Aug 22, 2023 3:49 am

If I remember correctly, it is easy to have the throttle slide rotated around the wrong way (about 180 degrees). This makes the throttle slide sit much higher than the idle screw and results in high revs. You should be able to tell by the amount of travel in the twist of the throttle.
Thanks.

Regards

Muddy

'64 C72
'63 C72

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Tim Allman
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Re: Carburetor stuck on full throttle - CA77

Post by Tim Allman » Tue Aug 22, 2023 4:50 pm

I once had a throttle slide stick because the nuts on the mounting studs were unevenly tightened. Apparently this can warp the carb body. You could loosen the nuts and see what happens when you turn the throttle.

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Michael Stoic
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Re: Carburetor stuck on full throttle - CA77

Post by Michael Stoic » Fri Aug 25, 2023 7:24 pm

I've done both, at least once, when working on my '64 CP77 - what Muddy describes in his post and Tim in his.

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Michael

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