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Dewyz1100
Posted on Monday, July 29, 2019 - 03:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey there forum...got a head-scratcher for you...

Two months ago, without ever giving me a moments pause with reliability, while at a red light the EBR died on me - like I hit the kill switch...

When I turn on the ignition the display boots up, and the fuel pump primes (like usual)...but when I hit the starter it does not turn over and the system browns out...

Today was the first time I got a chance to look at it (took a "mental health" sick day from work)...

Assuming the 2014 (neglected) lithium battery was to blame, I tried both the riding mower's battery (same result) and the HUGE harley battery (same result)...

Voltage regulator fails one of my four tests on all three stator inputs... The Stator itself shows open resistance on all three coil outputs...

Okay, assuming there was some catastrophic electrical failure that blew all three stator coils and nuked the regulator in the process...I continued on...

Removing the regulator (and disconnecting the stator) I connect the mower battery again - this time with a battery charger connected to simulate a charging system...thinking if there was some electrical short in the charging/regulation system I could safely bypass that brownout point and turn over the bike...

Alas - same result - brown out...

So I am left with some questions - and some level of fear...

Electrically, I could see where either the starter itself, or it's solenoid could have gone bad and cause a brown out when attempting to start the bike...HOWEVER, neither of those possibilities should have randomly caused the bike to stall out at a red light after riding hard for 25minutes coming home from work...

So...the fear is that this is a mechanical issue - not electrical...if for some reason the engine had seased up...the starter tries to engage, and no movement causes the electrical over current that browns out the system...

Thoughts...?
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Ggggary
Posted on Monday, July 29, 2019 - 05:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Put it in high gear and see if the motor will turn by pushing (rocking) the bike.
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Deanh8
Posted on Monday, July 29, 2019 - 06:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check the engine cases under the starter for physical cranks and in the front.
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Dewyz1100
Posted on Monday, July 29, 2019 - 08:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I put the bike in 6th and popped the clutch while pushing it...all that did was leave black tire skid marks on my garage floor...no indication of engine movement...

I'll have to get my lift setup (just bought the place) in order to take the lower body work off and inspect engine cases and check the oil...
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1_mike
Posted on Tuesday, July 30, 2019 - 03:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've forgotten which side (left maybe), pull the plug out of the center of the engine case, there is a bolt in the end of the crankshaft that you can use to try to turn just the crank. It's mostly used when adjusting the valves.

Good luck.

Mike
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Tpehak
Posted on Tuesday, December 17, 2019 - 04:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any luck ?
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