stator problem

[ughboat]

I have a 60hp '02 four stroke/carb motor. It has a misfire issue. I get strange readings from the stator wires. Should there be any continuity between the yel/blk and the green/wht or wht/green? I get 20Mohm between them, and continuity to ground on the yel/blk to yel/blk. I believe the grn/wht and wht/grn are ignition coil. Then there's two yel/blk wires and two yellow wires. Are there three coils in this stator?
Frank

 

[gm280]

:welcome: aboard ughboat to iboats. Nice you decided to joins us...

I can't say for certain because I have never worked on your model engine, but I honestly don't think you should ever get any reading from any wire concerning the stator and ground. However, you stated that you are seeing 20meg ohms. Are you touching the probes with your fingers while taking those reading? That would account for the erratic/strange readings and reading to ground as well. Do those tests again and make certain your fingers don't touch the meter probes when do the test. See if that works better. JMHO

 

[ughboat]

No, I was absolutely certain not to touch the probes and was certain to make sure it was zeroed before and after testing. I tripled checked. I get continuity to ground on the yellow charging coil(checked at the regulator plug). I get the continuity from coil to coil on all three sets of leads. I get strange running DVA voltages on the ignition coil. Upon initial contact with the probes, I'll get a reading of about 35 volts, only for a split second. Then it drops to 7 volts. When checking the green wires to ground, running, I'll usually get about 7 volts, but sometimes 11-14. The misfire seems to intensify as the motor warms up.

 

[gm280]

No, I was absolutely certain not to touch the probes and was certain to make sure it was zeroed before and after testing. I tripled checked. I get continuity to ground on the yellow charging coil(checked at the regulator plug). I get the continuity from coil to coil on all three sets of leads. I get strange running DVA voltages on the ignition coil. Upon initial contact with the probes, I'll get a reading of about 35 volts, only for a split second. Then it drops to 7 volts. When checking the green wires to ground, running, I'll usually get about 7 volts, but sometimes 11-14. The misfire seems to intensify as the motor warms up.

Did you disconnection the stator wires for the resistance tests? If not you could have a blown rectifier and or regularter and that is where the resistance to ground could be coming from. No stator coil wires should have any resistance to ground...ever. That voltage is AC and until it goes through the rectifier block to convert to DC, it is not referenced to ground. JMHO

 

[ughboat]

I did isolate the stator for the resistance tests.

 

[gm280]

I did isolate the stator for the resistance tests.

If you were reading the stator wires to ground and read anything other then a complete open, you have a bad stator. The windings are touching the metal core somewhere and that is not good. JMHO

 

[ughboat]

I agree. Thanks for the input.
BTW, just to correct the post, it's a '01, not '02

 

[gm280]

I agree. Thanks for the input.
BTW, just to correct the post, it's a '01, not '02

It is a shame you have to replace a stator that probably works and provides an output but has a winding or two touching somewhere and making it useless. :sorry:

 

[sam am I]

This might help........

 

[ughboat]

What book did the diagrams come from? I've been hunting for that info. I just ordered a Seloc manual. Thank you very much. I see the third coil is for the enricher. Thanks for the help. It's much appreciated.