stator, r/r problem - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 4 (permalink) Old 04-12-2017, 03:41 AM Thread Starter
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Cool stator, r/r problem

Hi all , The sun has finally returned across the pond so unwrapped the VN 750 and went for a 20 mile ride,When i got back the wiring had melted on the r/r connector so swapped the r/r for a cheap chinese one and that blew after 5 minutes .I have checked the stator and seems ok but i am only getting 20-40 amps off each leg so do you think this is a bad stator ? I am going to put on a mosfet r/r so dont want to damage that one as well. Has anyone got any input on this . Thanks JETHRO

Vn 750 A2 1986 rebuilt engine, crank shaft, half casing,shell bearings,con rods,rear cylinder head,oil pump,water pump ,(had ceased bearing rusted up),tie bar upgrade,clutch basket drilled,front cylinder cam chains,toc springs,stator,shaved, rectifier,agm battery,solenoid ,starter motor (used) re-spray ongoing.
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post #2 of 4 (permalink) Old 04-12-2017, 11:13 AM
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If you meant 20-40 volts AC, it's right in the ballpark. Does the stator pass all the ohm tests? Same results when it's hot?

Should do all the ohm tests on the r/r, sounds like it may be shorting out some way. If the r/r passes the tests, running the 12v positive straight (with a fuse) from the r/r to the battery will get it away from Junction Box gremlins. A MOSFET setup will also do that.

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post #3 of 4 (permalink) Old 04-12-2017, 03:00 PM
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40VAC seems a bit low. I'm used to seeing 55VAC+ @ 5k rpm.. or am I being too optimistic?

If it's not grounding out when hot, and passes the other tests, it's probably fine. Maybe I'm used to specs from TPE rewinds.

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]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #4 of 4 (permalink) Old 04-13-2017, 05:05 AM Thread Starter
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ok sorry i did mean ac volts ,I checked when cold with stator disconnected from r/r so i will do hot test .thanks

Vn 750 A2 1986 rebuilt engine, crank shaft, half casing,shell bearings,con rods,rear cylinder head,oil pump,water pump ,(had ceased bearing rusted up),tie bar upgrade,clutch basket drilled,front cylinder cam chains,toc springs,stator,shaved, rectifier,agm battery,solenoid ,starter motor (used) re-spray ongoing.
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