2005 Yamaha RS Vector wont start FIXED!!!

[kalisto2k1]

Hello,

I have a 2005 Vector er carb model with 3,000 miles on it. I owned it since new. This season the stator went on it, open circuit on one of the 3 loops. wasn't charging but still ran good on a full battery. I purchased a new stator and pickup coil combo from rmstator.com. Tore the sled apart and installed the new stator and pickup coil.

The snowmobile started with some persistence but it did run, idled smooth but occasionally died you would have to babysit the throttle. Also took about 3 seconds of cranking to fire it up. Took it for a ride and seemed to run good, parked it in the driveway and it idled down and shut off. now it wont start again, tried cranking, pulled the plugs and they are wet so its getting fuel, but spark is weak-non existent.

I pulled the plugs and coil out and grounded them, when you first begin to crank, the plugs receive only 1 faint weak spark, after that no spark at all if you keep on cranking. I tested the new stator with a ohm meter on the 3 prong gray clip and the circuits had .2-.3 ohm resistance on them. I also tested the pick up coil resistance on the 2 prong clip and it came back at around 190 ohms. Rmstator lists 185 + or - 20% so that seems within spec. I am running out of ideas of what could be wrong. ran good before I changed out the stator and pickup coil.

I had cleaned the carb earlier this season, ran great after.
I had changed the spark plugs when I put in the new stator with factory Cr8e, I have also tried the old plugs and still no spark.

Thanks
Mike

 

[kalisto2k1]

could it be a bad ecu? I tested there is power on the coil terminal when you turn the key on but no spark when cranking. or is the new stator defective? is there a way to ohm out the ecu? Also I put a test light on the coil and cranked and it dimmed as a pulse.

 

[kalisto2k1]

fixed the sled!!! it was the brand new pick up coil. Ohms tested fine but output voltage was no good. When testing pulsar coil get multimeter with max voltage. voltage should be 7-12v while cranking 300rpm or so, my pulsar coil was .7-1.3v. Coil was brand new but defective. I just cut the end off and fed my old pulsar coil through stator loom and reconnected.

 

[4strokeluvr111]

Great to hear you figured it out!!!!

 

[trapper]

fixed the sled!!! it was the brand new pick up coil. Ohms tested fine but output voltage was no good. When testing pulsar coil get multimeter with max voltage. voltage should be 7-12v while cranking 300rpm or so, my pulsar coil was .7-1.3v. Coil was brand new but defective. I just cut the end off and fed my old pulsar coil through stator loom and reconnected.

Good ol' "made in china" parts!!!

 

[Neil Ryan]

FIX #2 : Well let me say that I have had the same problem with my 2005 RS Venture. I won't go into all the painful expletives spoken while troubleshooting this mis-adVenture. Let me mention this - I originally expected the pickup coil to be the culprit and I did replace it with an RM Stator pickup coil. That combined with a good carb cleaning got the sled running in warm weather. As the cold weather approached - boom no wanna go anymore - maybe it failed/maybe it didn't. I ordered an aftermarket Stator/pickup coil assemble (I believe SPI) off of eBay. Installed beautifully, but again, nothing doing. I was ready to light the match. Then it hit me....on the pickup coil leads entering the end-connector...use a brad nail.. remove leads from connector and swap their location in the connector. With the leads in the connector reversed - sled fired right up. So I am wondering two things now... did I get lucky/unlucky wiring the RMStator pickup coil backwards? To the fixed solution noted above - curious to know if you swapped the leads in the connector before snipping off the new pickup coil and replacing with the old? If not, maybe you got real lucky when you reconnected. That aside, with gratitude to you for your post on the pickup coil solution mentioned. Now I am happy to go put everything back together!

 

[Fivestarlandscapes]

Kalisto + neal ryan
Your post litterally saved my butt! I had the exact same thing happen. I would never have figured it out without your post. Thank you for taking the time to post the fix. Lesson to others. Do not purchase an aftermarket stator!

 

[Neil Ryan]

Hey Fivestarlandscapes... glad to hear you are sled-ready again. I just want to clarify one thing... I am running an aftermarket stator just fine... the issue I found was that the leads from their pickup coil was reversed in the attached connector. They're only held in by plastic tabs so if you bend them out of the way the wire leads come out. Thats what I did and swapped... all was golden after that.

 

[Fivestarlandscapes]

Neil,
I owe you a lot of beer. You saved my #*$&@ and im sure many others will benefit. Your a smart dude.

 

[Neil Ryan]

Rock on Sled brother... Needless to say alot of beer was drank after many many unsuccessful fix attempts. When I flipped those leads and she fired up...I stepped outside my garage strutting the Rocky pose yelling Yahoooo....i'm sure i raised a few neighbour eyebrows... A day later I am sure they figured out why when those magical ski/track imprints tatooed my front and back yards. Cheers!!