Electrical Help Please

K

Knickell

Location
Lemoore ca
I have new motor with all new electrical and electrical is connected properly with no shorts(triple checked). It has a TBM light weight flywheel from Thrust Innovations and MSD enhancer & OEM stator.
Problem: ski runs awesome for about 20-30 minutes then smokes the stator and takes the CDI with it. This has happened 3 times now. The only thing that hasn’t been swapped is the flywheel. Any help or suggestions would be greatly appreciated.
 
DylanS

DylanS

Gorilla Smasher
Location
Lebanon Pa
^ this and check your ground cable ends for corrosion inside the crimps. A multimeter will generally ring out and show no issue on a borderline failing ground cable and its fairly common on the older cables.
Slow cranking and hot/warm cables are a good indicator too.
 
K

Knickell

Location
Lemoore ca
All electrical is good. Even the wiring is new. No corrosion and cranks solid, no warm wires. And yes Madmat. $$$$. Its been sucking! I'm wondering if the flywheel could cause this. Its the only item I havn't swpped. I did swap the rectifier. Evrthing is OEM. Thank you evyone for the input. Keep it coming:)
 
WFO Speedracer

WFO Speedracer

A lifetime ban is like a lifetime warranty !
Location
Alabama
Clarify what is happening , when you say it smokes the stator is it melting the black ground wire on the stator and of course the wires next to the ground wire ?
 
JC-SuperJet

JC-SuperJet

Location
Texas
A bad/weak Battery can also put excess strain on the Stator...

Battery might also have a bad Ground/Negative Post/Plate.

The MSD also runs off the Battery.

What is the model, brand and engine specs?
 
WFO Speedracer

WFO Speedracer

A lifetime ban is like a lifetime warranty !
Location
Alabama
If none of the wires are melted how do you know it's bad , do resistance checks verify it's bad , to me it sounds a bit like a flywheel that has lost magnetism .

Are these OEM stators or chinky chanky Chinese stators we are talking about here ?
 
K

Knickell

Location
Lemoore ca
Its a 62T motor, brand new built by Jet Maniac.
It loses spark. I drop in a new OEM stator along with a new CDI and it fires right up. I also tried a new battery on the last one and it still crapped out the stator and CDI after 20 minutes of runing great. But I am running a lightweight lithium Ion battery. Is there any issue running those? Also forgot to mention, its burnt up an MSD and an OEM CDI so far. I'm really down to the flywheel here, but I wouldn't think the flywheel could cause this problem. Maybe its creating too much charge back?? Magnets are messed up. Is that even possible? I sent and email to TBM asking this question about the flywheel and waiting for a response now. Thank you guys again for helping out here. This has been sucking.
 
WFO Speedracer

WFO Speedracer

A lifetime ban is like a lifetime warranty !
Location
Alabama
The flywheel cannot overcharge anything , it is the voltage regulators job to make sure it does not overcharge , that being said what is the voltage across the battery terminals when it is running ,anything above 15 V and everything connected will get fried.

Just take a look at the Waxhead 760 charging system , two charging coils , two voltage regulators , twice the charging system output , still not frying the electrical components , all the excess voltage not used is bled off to ground by the voltage regulator.
 
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