Engine shuts off when I turn the Handlebar to the right - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 10 (permalink) Old 07-04-2019, 03:57 PM Thread Starter
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Engine shuts off when I turn the Handlebar to the right

Exactly as the title states. Doesn’t matter rpm or anything. If I turn the handlebars all of the way to the right, the bike shuts off.


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post #2 of 10 (permalink) Old 07-04-2019, 04:23 PM
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Check all the wiring and plugs running from the bars and ign. switch to the plugs under the neck cover on the left side, under the tank.

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post #3 of 10 (permalink) Old 07-04-2019, 05:00 PM
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Yup, thats a wiring issue most likely, make sure none of the wires in the bars are pinched, damaged or have the insulation worn thru.

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post #4 of 10 (permalink) Old 07-04-2019, 07:15 PM Thread Starter
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Quote:
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Yup, thats a wiring issue most likely, make sure none of the wires in the bars are pinched, damaged or have the insulation worn thru.


And the fan turns on with the bike off


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'86 VN750 with the following work done to it, after sitting for 19 years:
John 8:44
REV 2:9
REV 3:9
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post #5 of 10 (permalink) Old 07-04-2019, 09:03 PM
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Quote:
Originally Posted by MSattler View Post
And the fan turns on with the bike off


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Fan switch works with a ground wire. So either the switch is bad, or the ground wire to it is getting grounded from somewhere other than the switch. Black/yellow wire.

The wire is probably routed through the same plugs under the tank, left side neck cover.

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post #6 of 10 (permalink) Old 07-04-2019, 11:23 PM Thread Starter
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The fuel gauge did just stop working


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'86 VN750 with the following work done to it, after sitting for 19 years:
John 8:44
REV 2:9
REV 3:9
www.voat.co
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post #7 of 10 (permalink) Old 07-05-2019, 10:52 AM
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These issues with the issue you sent me the video of (where your tach was acting wonky) sounds like you got some busted up wires. Gonna be a bit of less-than-fun soldering in your future unfortunately but hopefully you can find just a few that are bad

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post #8 of 10 (permalink) Old 07-05-2019, 11:22 AM
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I had a similar issue of quitting when turning right. For me (and my wiring harness) it was the red/orange connector under the left neck cover. I had unhooked it and when I reconnected it some of the pins backed out enough that when the wires were stressed the connections pulled apart. Reseated the pins and problem went away.

Summer has hit with high temps and I found my fan wasn't working. I found the JB relay bad. Wired the fan direct with handlebar switch. At lunch time sometimes it takes 2 light changes to get past the intersection. The fan doesn't bring the temp down but keeps it from going up. With the MOSFET RR(SH775) I've found there is some charging going on at 1100 RPM so I don't worry that much about the battery.

2003 VN750
Velorex 562 sidecar w/trunk
2-wire mod
Headlight power switch
Manual fan switch
Shingigen SH775
Blue wire mod
Yellow wire mod
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RR moved
Voltmeter relay wired
Coils direct wired w/relay
TOC MCCTs
handicap mods:
extended foot shift
heel shifter
extended brake pedal
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post #9 of 10 (permalink) Old 07-05-2019, 11:33 AM
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Missed the tach issue. Mine would work at start up then quit working and during riding start/stop working. I checked wires and even jumpered in new wiring. Same issue. Took the tach apart (a major PITA) and found a bad IC on the board. Fixed it with a cheap aftermarket tach.

2003 VN750
Velorex 562 sidecar w/trunk
2-wire mod
Headlight power switch
Manual fan switch
Shingigen SH775
Blue wire mod
Yellow wire mod
RLU removed
RR moved
Voltmeter relay wired
Coils direct wired w/relay
TOC MCCTs
handicap mods:
extended foot shift
heel shifter
extended brake pedal
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post #10 of 10 (permalink) Old 07-05-2019, 10:38 PM Thread Starter
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Quote:
Originally Posted by Hench View Post
Missed the tach issue. Mine would work at start up then quit working and during riding start/stop working. I checked wires and even jumpered in new wiring. Same issue. Took the tach apart (a major PITA) and found a bad IC on the board. Fixed it with a cheap aftermarket tach.


Thanks! I will check that. So I tried to replicate the shut off, but it wouldn’t happen on a flat surface. I was uphill/downhill when it was happening. The issue with the tach is when it doesn’t want to start, and acts like the battery is dead. I hit the start button and instead of turning over the bike, it just shoots the tach up instead. I checked the fuel gauge plug tonight. One of the connectors coming from the fuel float is grounded even when disconnected from the other half of the plug. It’s getting a ground from somewhere. Is this normal? I mean the tank is metal and is bolted in, thus it would have negative current running through it. The four bolts for the float are screwed to that.... maybe it is bridging? When this tank is empty I will have to pull the tank and float apart again. The float was rusty, but it worked before I took everything apart and broke the corroded wire. I could just cut off the portion from under the tank and solder new wires on to a new weatherproof connector. I was hoping to be able to wiggle the wires and see if I can find the one that’s grounding out


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'08 Road King Classic
'86 VN750 with the following work done to it, after sitting for 19 years:
John 8:44
REV 2:9
REV 3:9
www.voat.co
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