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post #1 of 9 Old 08-24-2015, 1:55 PM Thread Starter
 
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93 Honda Shadow 1100 VT - cuts out when under power

I have a 93 Honda Shadow 1100 VT that when not moving sounds & idles great.. even when I raise the RPM's.. but when I put into gear & give it power it wants to cut out & die.. It will restart easily..

I have drained & replaced the fuel thinking it was bad fuel. Then I replaced the fuel filter, air filter, plugs & ignition coil wires.. While I had the bike apart I checked all the wiring & cleaned up the carb by spraying carb cleaner in it.

What could be causing this?? fuel pump??
Please help,, any suggestions ?
Thanks
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post #2 of 9 Old 08-25-2015, 4:57 AM
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

Has it been sitting for an extended period of time?

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post #3 of 9 Old 08-25-2015, 1:35 PM Thread Starter
 
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

It did sit all winter, I only started it once a month but didn't actually ride it any where. I was told it may be the jets. So I guess I'll be taking my bike apart again to replace them. Any suggestions?
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post #4 of 9 Old 08-25-2015, 2:36 PM
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

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Originally Posted by Islandergal View Post
It did sit all winter, I only started it once a month but didn't actually ride it any where. I was told it may be the jets. So I guess I'll be taking my bike apart again to replace them. Any suggestions?
Given the age of the bike and the small passageways inside the carburetors I would guess that there is some gunk in there that a shot of carb clean is not going to fix. I would suggest removing the carbs and give them a complete tear down and cleaning. Carb cleans can be a bit daunting, but I recommend getting a service manual if you don't already have one, take pictures of them prior to and during disassembly for reference, and make sure EVERYTHING that can unscrew or be removed from them IS removed. All too often carbs are said they are cleaned on this site, but usually not good enough and people are doing it a second and 3rd time. Jets can be cleaned once removed and visually checked, but the internal passageways of the carb body are usually where the problems lie. Be sure compressed air and carb clean can flow through each one.

If th bike idles well, but won't accept throttle under load I would guess that the main jet circuit would be the culprit. The bike wouldn't start and wouldn't idle if the idle circuit was plugged up. Good luck, and post your results

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Re: 93 Honda Shadow 1100 VT - cuts out when under power

Thanks, I'll let you know how it turns out
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post #6 of 9 Old 09-27-2015, 8:24 PM Thread Starter
 
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

Update.. I took the carbs off & had a Honda service shop tear them down & they ended up cleaning, replacing floats, needles etc.. did a jet rebuild.. I put them back on bike & put all back together.. but now bike won't start.. thinking that I forgot to do something?? it has a strong battery. I checked to make sure the run button was to run & not off position. any suggestions on what I might have missed re-assembling it??
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post #7 of 9 Old 09-30-2015, 5:58 PM
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

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Originally Posted by Islandergal View Post
Update.. I took the carbs off & had a Honda service shop tear them down & they ended up cleaning, replacing floats, needles etc.. did a jet rebuild.. I put them back on bike & put all back together.. but now bike won't start.. thinking that I forgot to do something?? it has a strong battery. I checked to make sure the run button was to run & not off position. any suggestions on what I might have missed re-assembling it??
Fuel hose not connected, spark plugs mis-wired, electrical connector not connected?? Could be any number of things. Pinched vacuum line, fuel valve "off"??

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post #8 of 9 Old 09-30-2015, 7:02 PM Thread Starter
 
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

Good news update !!! Got the bike started.. & even took for a ride down the block.. I'm taking it into a service shop for them to sync the carbs.. & it should run smoothly after that.. ;-)

Thanks for all your suggestions..
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post #9 of 9 Old 09-30-2015, 7:19 PM
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Re: 93 Honda Shadow 1100 VT - cuts out when under power

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Originally Posted by Islandergal View Post
Good news update !!! Got the bike started.. & even took for a ride down the block.. I'm taking it into a service shop for them to sync the carbs.. & it should run smoothly after that.. ;-)

Thanks for all your suggestions..
Great! Glad you got it sorted out. Enjoy the bike

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