Rain issues - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 05-02-2016, 01:57 AM Thread Starter
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Rain issues

My bike seems to stumble a bit when it's running in the rain, the headlight will cut out for a second, the engine stumbles, then she picks back up. Does anyone else have issues like this? Is it a common problem with the Vulcans?

New rider, first ride -85 vn700- 2 wire mod
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post #2 of 8 (permalink) Old 05-02-2016, 07:51 AM
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Hooray for Pittsburgh weather, eh? Rode in mild rain this week and experienced no ill effects.

Seems weird that both the headlight and engine are effected. Water getting into an already-loose connection? Seems like the open would have to be shared by both the battery and the regulator voltage output (since both would have to fail together in order to lose power while riding). The battery compartment should be pretty well protected from water ... possibly water getting into the ignition switch?
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post #3 of 8 (permalink) Old 05-02-2016, 08:15 AM Thread Starter
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It's a good place to start at least,I will try covering it next time. I should also mention it happened after riding about 25 minutes in a light rain. And only a couple times. But definitely only in rain.

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post #4 of 8 (permalink) Old 05-02-2016, 11:39 AM
..have a vulcan good day!
 
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Quote:
Originally Posted by Jb87 View Post
It's a good place to start at least,I will try covering it next time. I should also mention it happened after riding about 25 minutes in a light rain. And only a couple times. But definitely only in rain.
If it wasn't for this statement, I first suspect the ignition switch and/or its connector.
Do you ride with a heavy set of keys hanging out of the ignition switch ?
Some past members discourage this......

hope this helps - -

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
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Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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post #5 of 8 (permalink) Old 05-02-2016, 11:57 AM
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Stator wires getting wet? Ign. switch wet?

My signal flasher got wet and signals went nuts. Had to dry it out and seal it up.

edit: flasher was also hanging upside down

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Last edited by Spockster; 05-02-2016 at 12:52 PM.
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post #6 of 8 (permalink) Old 05-02-2016, 12:19 PM
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I'd go through and clean all connectors with electronics cleaner and pack them with dielectric grease to protect them from the elements.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
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V&H Cruzers
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1990 Kawasaki Vulcan 750

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post #7 of 8 (permalink) Old 05-02-2016, 12:45 PM
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X2 definitely the ignition switch.

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post #8 of 8 (permalink) Old 05-03-2016, 01:07 AM Thread Starter
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No, no heavy keys. It's on its own ring with just a plastic tag. Will go thru the connections. That's another good suggestion thank you!

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