250 carb conversion - Honda Rebel Forum
 
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post #1 of 7 Old 10-21-2019, 07:24 PM Thread Starter
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250 carb conversion

Bike has been sitting for over two years, trying to get it back up and running. Had to replace battery, but it still won't start. Sounds like its not getting gas through the carb, but can't guess the problem. I think it just needs a soaking but accidentally made a hole in main fuel jet.
Bought aerosol carb cleaner, can dip carb cleaner, dual carb, dual carb exhaust gasket, and dual carb intake adapters.
Couldn't find a tutorial online on how to convert carb from single to dual and it looks like either the intake studs are too long for the conversion or I need to buy a intake manifold that doesn't exist.
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post #2 of 7 Old 10-21-2019, 07:42 PM
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Dual carb setups are not OEM to USA. You may be able to find the intake manifold for that conversion in Asia (eBay) where that setup is more common.

1985 CMX250 ... 1986 CMX450 ... 2005 Ruckus 50
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post #3 of 7 Old 10-21-2019, 08:56 PM Thread Starter
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The threads on the studs don't go that far
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post #4 of 7 Old 10-21-2019, 09:08 PM
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Welcome to the forum.

Keepin' all the left over parts. Gonna use 'em to build another bike!

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
Putting your bike year and model in your signature helps others help you!
Here's how: https://www.hondarebelforum.com/f19/...re-121087.html
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post #5 of 7 Old 10-22-2019, 08:22 AM
 
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Welcome. If you can afford it, maybe consider converting it back to a single carb. More simple and easy, and the stock carb is more than adequate for our 233.8's at WOT.

2016 Honda Rebel 250 - The "Piglet."
AFR sensor equipped and downsized to a 0.105" main jet.
The only changes so far.
Bought on 6/29/19 with 44 miles.
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post #6 of 7 Old 10-22-2019, 09:52 AM
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Quote:
Originally Posted by servermomma View Post
The threads on the studs don't go that far
not sure what you're working with but,

studs can be replaced and pics help when trying to describe something

1985 CMX250 ... 1986 CMX450 ... 2005 Ruckus 50
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post #7 of 7 Old 02-18-2020, 04:58 AM
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By help of google...I think I see the stud-problem. Dual carb manifolds have a "thin" flange, you could change the studs, or have more threads wound on them & cut, or add a spacer/washer/old, bigger nut/... to get the threaded part usable.


Arne K
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