stator failure

[4strokeluvr111]

How do you know it's not charging? Do you have a voltmeter to check voltage at the battery leads while the sled is running?

 

[grizztracks]

The main fuse in the starter relay is the only fuse but if the sled turns over it's not bad. If it's not charging the stator needs to be checked.

 

[engineman]

Also check for continuity between the three white leads shown above to ground. If there is any continuity the stator is bad or one of the leads are shorted to ground between the connector and the stator.

Very common on motorcycles to see good lead to lead continuity but also have continuity to ground.

Good luck!

Steve

 

[Biscorascal]

Thanks !

 

[pat the rat]

My friends 06 venture just burnt the stator,wonder if you have to pull the engine on the rx chassis to get at it

 

[Biscorascal]

Yes you do! I had one guy tell me he cut out a bit of the aluminum on the chassi ,saved him hours !

 

[pdiddy]

Are there any known ways to be "kind" to the stator? Ultimately this boils down to heat melting the insulation on the windings. Right? You have two sources of heat - direct from the engine environment and self generated from supplying current to the lights, ignition, fuel pump, ECU, handwarmers, battery, etc. Would switching to LED lighting help? Would stingy use of the hand warmers help? Would watching the engine operating temps help?

 

[engineman]

Hey pdiddy,

In my opinion the charging system on vehicles is there to 1) top the battery back up after a starting event and 2) operate the vehicle's electrical needs - ie lights, FI, etc. IMHO charging systems can be stressed when the battery is low and the operator runs the vehicle to charge a rather dead battery up. On my vehicles if the battery has been significantly discharged I place a battery charger on it to fully charge prior to operation.

A second opinion I have is when using your vehicle to jump start another. I place the jumper cables between the vehicles and start the good vehicle to put a charge on the dead vehicle. I then shut off the good vehicle and try to start the dead vehicle. Again, in my opinion trying to start the dead vehicle with the good vehicle running puts quite a surge load on the good vehicle's charging system which may kill or wound it potentially causing a failure down the road. Note the words MAY and POTENTIALLY as nothing is absolute.

Let the bashing begin......

Steve

 

[BigDogrx1]

With your sled running, put a voltage meter on your jumper cables from your sled. If you're getting 13.8 -14.4 volts, your stator is char'ging your battery, and the battery is no good. If low charging voltage, then stator is bad, and needs to be changed.

please be careful to not give advise that is not correct, proper way to check stator is unplug 3wire plug from regulator, put multimeter on AC and check all 3 prongs should read about 150 volts on all 3 if 1 prong is way different then stator is bad, stator produces AC power to regulator which converts to DC, check stator output to condem stator, battery test old school with charge and load test, if both are good then ohm test regulator

 

[BigDogrx1]

With your sled running, put a voltage meter on your jumper cables from your sled. If you're getting 13.8 -14.4 volts, your stator is char'ging your battery, and the battery is no good. If low charging voltage, then stator is bad, and needs to be changed.

please be careful to not give advise that is not correct, proper way to check stator is unplug 3wire plug from regulator, put multimeter on AC and check all 3 prongs should read about 150 volts on all 3 if 1 prong is way different then stator is bad, stator produces AC power to regulator which converts to DC, check stator output to condem stator, battery test old school with charge and load test, if both are good then ohm test regulator

 

[BigDogrx1]

My friends 06 venture just burnt the stator,wonder if you have to pull the engine on the rx chassis to get at it

No engine pull, remove oil tank and stator cover is right behind. It, 2hr job.

 

[engineman]

please be careful to not give advise that is not correct, proper way to check stator is unplug 3wire plug from regulator, put multimeter on AC and check all 3 prongs should read about 150 volts on all 3 if 1 prong is way different then stator is bad, stator produces AC power to regulator which converts to DC, check stator output to condem stator, battery test old school with charge and load test, if both are good then ohm test regulator

Grizz's post number 32 above pretty much nails the process...... Read and follow carefully and you should be able to isolate the culprit!!!

Good luck - these electrical issues can be a PITA.....

Steve

 

[Zack]

No engine pull, remove oil tank and stator cover is right behind. It, 2hr job.

You DO have to pull the engine, there is no way around it

 

[J1635]

You DO have to pull the engine, there is no way around it

lol what?

I had one apart the other day, your biggest issue is getting the stator cover off, but if you pull the steering linkage, support frame, oil tank, and other assorted stuff you can definitely do it without pulling the engine.

Are there any known ways to be "kind" to the stator? Ultimately this boils down to heat melting the insulation on the windings. Right? You have two sources of heat - direct from the engine environment and self generated from supplying current to the lights, ignition, fuel pump, ECU, handwarmers, battery, etc. Would switching to LED lighting help? Would stingy use of the hand warmers help? Would watching the engine operating temps help?

Ultimately it boils down to 1) how well they coated the windings with varnish/insulation and 2) how much of a load is being put on the stator.

i would say 90% of failures were due to an overcurrent situation that the stator just couldn't handle or supply, and 10% just bad quality control. I've changed many different kinds of electric motors from fractional all the way up to 100+hp motors, and ive had a few that were NFG from the factory, either the varnish didnt fully coat the winding or something rubbed through etc etc. At the end of the day if its gonna happen chances are it probably will anyway no matter how much you watch out for it, short of pulling the stator out and looking at it..even then theres no guarantee. They design the electrical to to only draw something like 70 or 80% of the stators capacity at full load - which itself is probably underrated to begin with. So crank those warmers and don't worry about it too much. IF you start adding on things then you need be extra careful

 

[YamahaHoss]

My friends 06 venture just burnt the stator,wonder if you have to pull the engine on the rx chassis to get at it

Did you end up replacing the stator? if so I really could use help with those last three bolts on my cover for the 06 Venture and then get the cover off and replace?