[Geoffrey Demanuele]

Dear forum members,

we own a Honda Shadow VT600 year 1988, which we've been modifying for a long number of years, during which it always have been in an excellent working order including engine running perfectly fine.

Until one fine day, when we decided to remove engine, fuel tank, wheels etc etc in order to spray the frame, tank, and mudguard. All ready, assembled everything back, engine started fine but after couple of minutes, it ran so bad that it died shortly afterwards. Baffled as we were, we checked everything to make sure assembly is all ok, but still issue persisted. To make it even a "mystery", days afterwards we try to start it, runs perfectly fine but then again after some minutes, runs bad and dies afterwards. We changed the plugs, changed coils, we even bought a new carb, but same story again and again

We're almost out of options now, therefore, trying our luck with all you guys to enlighten us what more can we do/check??

Thanks very much in advance

 

[hogcowboy]

You need to tell our fine mechanics EXACTLY how it's running badly when it dies. Details are our only way to know what you have. However, there is one other way that can help. If you can get a video of this happening on YouTube, then give us the link to that video. Then we won't have any interpretation problems in addition to distance problems. When I refer to distance, many times on this side of the pond, someone near by might be able to stop by and put their eyes on a problem. But you being on an island that isn't likely to happen anyway. So your best shot will be a YouTube video. And good luck there.

 

[Geoffrey Demanuele]

Firstly... thanks for the post reply... appreciated !

Secondly, indeed a video would be an excellent idea. I will make sure to record one, upload to youtube and provide you with a link

Looking forward to do so in fact!

Thanks once again

Geoff

 

[Porky]

The problem is FUEL related, so check for pinched fuel lines, or a lack of fuel from the tank to the carbs: Fuel filter in the gas tank or carb main jet plugged up with dirt and/or other carb problems. A vacuum line could be pinched off also.

It doesn't sound electrical or it wouldn't run at all.

This problem is an easy one for a half way decent mechanic.

Sam:grin:

 

[Critter]

Did you scrap all your grounds to bare metal after you painted everything? Check all your grounds it could be as simple as a loose ground that looses enough of it's contact to cause an issue.

 

[soupy1957]

Dear forum members,

we own a Honda Shadow VT600 year 1988, which we've been modifying for a long number of years, during which it always have been in an excellent working order including engine running perfectly fine.

Until one fine day, when we decided to remove engine, fuel tank, wheels etc etc in order to spray the frame, tank, and mudguard. All ready, assembled everything back, engine started fine but after couple of minutes, it ran so bad that it died shortly afterwards. Baffled as we were, we checked everything to make sure assembly is all ok, but still issue persisted. To make it even a "mystery", days afterwards we try to start it, runs perfectly fine but then again after some minutes, runs bad and dies afterwards. We changed the plugs, changed coils, we even bought a new carb, but same story again and again

We're almost out of options now, therefore, trying our luck with all you guys to enlighten us what more can we do/check??

Thanks very much in advance

I owned a 1986. Same make, same model. Does your 1988 have a dual carb that is held to the body by a rubber boot and the carbs are offset to each other?

I had a problem with that boot not securing the carb creating air, or lack of vacuum if you will.