Electrical system maintenance

grizztracks

grizztracks

Tech Advisor
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Feb 24, 2005
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Location
Scio, NY
Country
USA
Snowmobile
FX Nytro RTX, RS Vector, SR Viper RTX SE
I decided to get the Nytro out of the shed today and install a DDM tuning HID kit but it didn't want to start. After several turns of the key it final rolled over and started. I finished the install and wanted to try the lights but again it didn't want to roll over. After trouble shooting the problem I discovered that the starter relay was not getting a control signal from the ignition switch which was caused by a corroded connector. I cleaned the ignition switch wiring harness connector and the plug on the starter relay and now it's starting with no problems.

If you haven't had these connection apart it may be a good idea to check them for corrosion before the seasons starts. It may save you a lot of aggravation out on the trail.
 
Excellent tip! Did you use a corrosion inhibiting grease on the connectors? Whenever I work on connections like that, I add a dab of silicone grease made for electrical connections. Also works well on trailer connectors and we all know how grungy those can get.
 
I was a full time diesel mechanic for many years. I've dealt with many electrical issues due to corrosion and have found that Truck Lite NYK-77 corrosion prevention compound works well on connectors. It not only prevents corrosion but also seals the connection from moisture. I normally clean the plugs before applying the compound with a battery terminal cleaner or a good penetrating oil.

http://www.anythingtruck.com/Merchant2/ ... =795-97944
 
Where exactly do you put this compound? On the prongs of the relays or around the housing? I've been giving mixed signals on this stuff.
 
I put a little compound on each prong then smear some in the holes on the other connector. When you connect the two plugs the excess compound will push out around the connector helping to seal it. I'm going to check the ECU and voltage regulator connections also just to be safe.
 
grizztracks said:
I put a little compound on each prong then smear some in the holes on the other connector. When you connect the two plugs the excess compound will push out around the connector helping to seal it. I'm going to check the ECU and voltage regulator connections also just to be safe.
Click to expand...

Yep. that's the way I do it too. Car makers learned a long time ago to seal all connectors with a rubber seal and with grease/compound. Why haven't sled makers? Even the headlights still use the same old 3 prong connector that was used on cars back in the 50's.
 
Another question, what do you clean the connections with? brush? chemicals?

Thanks in advance.
 
Just a small brush works well. I don't know about chemicals specifically for this. If I have a lot to do, I also use a brush on a Dremel at slow speed.
 
I had this happen last year also, I took the connectors apart completely by using a small pick and release the tabs on each pin in the connecting block ( be sure to disconnect the battery b4 doing this ,learned the hard way .popped a fuse ) then use your choice of dielectric grease to put back together.
 
What about making some sort of cover/shield to protect that area from snow and moisture running down onto the terminals? Thought about zip tying a rubber boot on/around it.....
 
I was looking at possibly moving the starter relay and main fuse to a little dryer place. Placing it directly under the vent wasn't the smartest thing Yamaha has done. My 05 vector has the same style relay mounted in a relatively dry spot and it's never had a problem.
 
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