The 750 died on me after a couple miles yesterday... where do I start looking? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 7 (permalink) Old 01-02-2017, 10:29 AM Thread Starter
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The 750 died on me after a couple miles yesterday... where do I start looking?

I haven't had a chance to give the whole bike a solid look-over but I figured I'd reach out here to get some ideas on where to start. My Vulcan is generally super reliable, haven't had any issues all year on her.

I haven't ridden in a few weeks, but generally keep riding throughout the winter so I figured I'd go for a cruise a couple days ago to get things properly warmed up and moving. She fired right up no issues, but about a couple miles down the road I felt some slight sputtering like she was running out of gas (there was still over half a tank full), which then progressed to a complete drop in power that felt like a cylinder had stopped firing. The engine couldn't climb past 1500 rpms, kept sputtering/bucking some more, and then finally sputtered to a stop. I pulled over, shut everything down, and cursed a bit, then did a couple checks. Pulled off all the spark plug wires and re-connected them. Checked all my fluids (oil and coolant was fine), I have a volt-meter attached and that was reading over 12 volts for the battery, plenty of gas in the tank, etc. Couldn't find any obvious issues, so I tried starting her back up with and without the choke. I finally got the engine started back up with the choke on (it took a little while, I think the engine might have been a little flooded from multiple attempts) but once it started it was running normally with full power. I didn't want to risk getting stranded again so I turned 'er around and rode straight home and parked it in the garage; haven't had a chance to look over since.

So.... where on earth do I start?

My mods are listed in my signature, and I haven't made any changes that would have affected anything since I've put a couple thousand miles on it or so.

Someone give me some pointers on where to start troubleshooting? Otherwise I'm going to chalk it up to winter gremlins until it happens again.

1995 VN750:
Ear shaved, re-jetted with 142/42 & 2 needle shims.
New modified front end with Maier GP fairing, half-ape handlebars, supersport grips and bar-end mirrors.
Stock seat, cut and modified to remove the passenger backrest.
Factory-Spec Sportster shocks.
Self-fabricated rider's backrest.
Engine guards and highway pegs.
Custom-made straight pipes, fiberglass-wrapped exhaust.
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post #2 of 7 (permalink) Old 01-02-2017, 10:36 AM
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POOGS...
https://www.vn750.com/forum/22-carbs-...cap-poogs.html

https://www.vn750.com/forum/22-carbs-...revention.html

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Last edited by Knifemaker; 01-02-2017 at 10:39 AM.
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post #3 of 7 (permalink) Old 01-02-2017, 11:00 AM Thread Starter
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Ahh, good ol' POOGS.... I didn't think of that. I guess that makes a lot of sense, I'll have to go about addressing that and see if it fixes the problem. I guess that makes sense of there's some sort of diaphragm in there being affected by the cold. Thanks for the reply man.

1995 VN750:
Ear shaved, re-jetted with 142/42 & 2 needle shims.
New modified front end with Maier GP fairing, half-ape handlebars, supersport grips and bar-end mirrors.
Stock seat, cut and modified to remove the passenger backrest.
Factory-Spec Sportster shocks.
Self-fabricated rider's backrest.
Engine guards and highway pegs.
Custom-made straight pipes, fiberglass-wrapped exhaust.
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post #4 of 7 (permalink) Old 01-03-2017, 10:35 AM
2014 KLR 650!
 
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I was going to suggest Craigslist for a sporty :-)
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post #5 of 7 (permalink) Old 01-03-2017, 11:42 AM
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Quote:
Originally Posted by Goofyfoot2001 View Post
I was going to suggest Craigslist for a sporty :-)
lol,that's a good one,Goofyfoot

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post #6 of 7 (permalink) Old 01-05-2017, 07:57 PM
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Sounds like the carbs have packed up from sitting.


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post #7 of 7 (permalink) Old 01-06-2017, 12:01 PM
2014 KLR 650!
 
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Speaking of, I better fire up the sporty soon or she will suffer the same fate.

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