Starting issues..............maybe the choke is not working? - Honda Rebel Forum
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post #1 of 9 Old 03-29-2019, 05:32 PM Thread Starter
 
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Starting issues..............maybe the choke is not working?

I got the carb cleaned, along w/the gas tank/petcock etc, adjusted the valves/air cleaner etc. It started and runs fine. But, it does not want to start easily- what I mean is that it will fire right off, but I cant keep it running. Temps in N FLA are in the 70s, but I tried using the choke and no choke. So far no joy either way. It seems to light off but then dies. I've tried holding the throttle slightly open, tried pumping it after it lights, but nothing seems to work well. Is there a possibility the choke is not right? I only loosened the plastic nut and pulled it out, then stuck the round brass thing back in and tightened it down?

George Penick
2004 Rebel 250
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post #2 of 9 Old 03-29-2019, 06:05 PM
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Have you run it long enough to set the idle speed?

Have you tried pulling the enricher lever about half way to begin with? That's about where my current Rebel likes it to start. The previous one didn't need any in warm weather, but I've learned different bikes respond differently. Begin with about 1/3 on the lever and gradually increase it on subsequent starting efforts if that doesn't work. Moving the lever while the engine is running usually kills the engine.

Once properly adjusted, you should never need throttle to start the bike.

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post #3 of 9 Old 03-29-2019, 07:10 PM Thread Starter
 
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That has me thinking that maybe I DONT have the choke engaged? I just pulled it out to clean the carb, then stuffed it back in the hole. Maybe there is a method of getting that tube/end seated correctly in the bore that I didnt do, and therefore I'm not getting any enrichening? I did try no choke and that didnt seem to work, and I do know its best to not give any throttle at start. Think I discovered that moving the choke lever as its running does kill it! I will keep listening and trying different things...........thanks, George

George Penick
2004 Rebel 250
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post #4 of 9 Old 03-29-2019, 09:46 PM Thread Starter
 
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Now that I think about it, maybe the Rebel uses an enrichener vs a choke- and the 'tube' that I pulled out of the carb just opens or closes a port that allows more gas in the carb, so maybe it does NOT have to be oriented in that cylinder. But hopefully I can get it to stay running once it fires- which is does, easily. And when warm, it starts and runs perfectly.

George Penick
2004 Rebel 250
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post #5 of 9 Old 03-29-2019, 10:54 PM
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Your assumption is correct; there is no choke and it doesn't matter how the end of the cable is turned when inserted into the carb.

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

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
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post #6 of 9 Old 03-30-2019, 03:43 PM Thread Starter
 
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More on starting cold................

flitecontrol suggested I try half choke and leave the throttle alone- which I had done previously, but I still could not keep it running. So today I used half or a little more, and when it hit, I did not TOUCH the gas. It kept idling.......YEA! NOT touching the throttle while its on choke must be important. A big thanks for the tip!

George Penick
2004 Rebel 250
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post #7 of 9 Old 03-30-2019, 05:31 PM
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What I cannot (often) do is adjust the enricher circuit lever once it's running. Usually, that kills it in a heartbeat, no matter which way the lever is turned. Once it has warmed up on enricher for say 20-30 seconds, you should be able to hop on and ride without it dying. Just don't try a quick takeoff as that can stall the engine too. Once the engine warms, usually withint a mile or two, you can gradually push the lever to off.

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 9 Old 04-04-2019, 04:52 PM
 
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The enrichener works in reverse to a choke. When you remove the enrichener cable from the carb, it has the effect of having a choke full on. I had to have a bike hauled over 100 miles back home once because that flimsy plastic fitting that holds the cable onto the carb broke, and there was no way to rig it. Once warmed up, an engine will run fine without a choke, but it won't run with the choke full on. On that particular bike, I decided that the cable itself was putting too much stress on the plastic fitting, so I removed the whole thing and replaced it with a small knob that screwed directly into the carb. I still have that bike and I always carry an extra one of those when I ride it. I have no idea why they make that fitting out of plastic instead of brass.

However, there are a number of other things that can cause your problem. Since it dies right away, it may not be getting enough gas to run. Pull the fuel line off the carb with the petcock on and see if you get a nice steady stream of gas. If that is ok, the float needle valve or float could be sticking. Loosen the float bowl drain screw with the petcock off, and see how much gas comes out. It will be quite a bit if the float bowl was full.

Does it ever stay running? Once it starts, will opening the throttle make any difference? Will it rev when you open the throttle? There are only two real possibilities. Either it is getting too much gas, or not enough. Either one will be a carburetor problem.

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post #9 of 9 Old 04-04-2019, 05:19 PM Thread Starter
 
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note my last post- its fine now after I learned to use about half choke, NO THROTTLE and DONT TOUCH IT once it lights up....until its warm.
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George Penick
2004 Rebel 250
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