Carb Sanity Check - Honda Rebel Forum
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post #1 of 16 Old 11-05-2018, 11:58 AM Thread Starter
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Carb Sanity Check

Here's the situation...

The last time my '07 Rebel ran under it's own power was about five years ago and the engine would stumble and spit and sputter. I drained everything, treated with Seafoam and then nothing. The engine would turn over, I was getting spark, fuel was successfully getting into the float bowl, I installed a new battery and fuel lines and she would run on starter fluid but once that ran out, she wouldn't run.

It seemed she wasn't able to get the proper fuel/air from the carb. So, over the past four years I have rebuilt the carb three times and tried different things. The last time I soaked the entire carb in cleaner and sprayed out all the passageways but no luck. Same behavior.

Is there any additional magic anyone could think of before I just take the carb into the shop?

I am not a newbie and rebuilt the carb successfully back in 2011 but I am no expert so, yes, I could have missed something.

-Ken
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post #2 of 16 Old 11-05-2018, 12:22 PM
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Yes, it's called an ultrasonic cleaner, the best way to clean a carb.

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

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post #3 of 16 Old 11-05-2018, 01:30 PM
 
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Flight has #1 on my list.

#2 replacing ALL the rubber bits, even though the vacuum piston is pricey, it's very often the culprit.
#3 then setting the factory start positions of the idle mix screw and idle stop screw.

2009 Honda Rebel 250; 2009 Honda Shadow 750 Spirit
"The bravest thing for me to do is admit when I am wrong" - unknown
HRF Answer #1 You should take the MSF Rider Course
HRF Answer #2 You need to clean your carburetor
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post #4 of 16 Old 11-05-2018, 11:49 PM
 
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the problem is internal passageways can become clogged..
soaking in carb cleaner the passage is so small trapped air isn't displaced by cleaner thus it stays dirty..
one has to agitate the cleaner basket Or use a ultrasonic cleaner to assure solvents enter the smallest places..

96 VS800 Intruder (sold 2018 ), 87 CMX250C Rebel,
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post #5 of 16 Old 11-06-2018, 06:14 AM
 
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Quote:
Originally Posted by SoakedKarma View Post
the problem is internal passageways can become clogged..
soaking in carb cleaner the passage is so small trapped air isn't displaced by cleaner thus it stays dirty..
one has to agitate the cleaner basket Or use a ultrasonic cleaner to assure solvents enter the smallest places..
What size cleaner do you need for a Rebel carb?
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post #6 of 16 Old 11-06-2018, 06:43 AM
 
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I mean ultrasonic cleaner
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post #7 of 16 Old 11-06-2018, 08:45 AM
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One large enough for the largest disassembled piece to fit in. You don't have to get everything in it at one time. Some of the "jewelry" cleaners are big enough. Any place that does much carb (and other parts) cleaning may have one, and not charge you much just to do your carb if you bring it to them disassembled.

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 #8 of 16 Old 11-06-2018, 10:26 AM
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Quote:
Originally Posted by Ted T View Post
What size cleaner do you need for a Rebel carb?
mine is 1 liter - plenty big

1985 Rebel 250 ... 2005 Ruckus 50
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post #9 of 16 Old 04-21-2019, 10:57 AM Thread Starter
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Thanks all for the replies.
Sorry I didn't get back here earlier.

I managed to get her to run without an ultrasonic cleaner BUT she will only start with starter fluid, runs very rough after she does start and will not idle.

Basically I flushed the carb with a gas/SeaFoam mixture and let it sit a while.

I am going to try carb cleaner spray one last time. If that fails, I will get an ultrasonic cleaner and use the All Balls rebuild kit I bought last year. If that fails, the local shop will rebuild and (hopefully) get her running for about $200. That's what they told me, anyway.
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post #10 of 16 Old 04-21-2019, 11:08 AM
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You should be able to find a shop that will clean the carb ultrasonically for a lot less if you remove and install the carb. I think Jacks Rebel Warehouse cleans carbs for around $45

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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