Nytro Cold Weather Starts

Thumper · Feb 21, 2011

My 2008 Nytro (stock) is having starting issues in cold weather. The sled simply won't turn over on the cold mornings. After putting a heat lamp on the crankcase for about 1/2 hour, that seems to do the trick. Any suggestions would be greatly appreciated.

Thanks
Thumper

jskattum606 · Feb 21, 2011

use thinner oil that is synthetic. 0w-30 full syn.

Tuesday · Feb 21, 2011

Pull the battery and keep it inside. If that is not an option put a tender or charger.

Thin oil helps as does a fully charged battery. Have you replaced your battery yet?

HDEMWET · Feb 22, 2011

could it perhaps be the relay for the starter circuit? is it turning over or just clicking?

twincam88 · Feb 22, 2011

try the starter relay they are in the front oiltank side(under the hood) by the sub frame should be 4 little relays. mine did this and the dealer gave me a new relay that was better sealed and you will need a new holder for it.

bigbird · Feb 22, 2011

New starter relay and you'll be fine.

mmaxcarver · Feb 22, 2011

The batteries last about two years, maybe three if you keep a trickle charge on them on the off season. Otherwise lower than -10 your not gonna start it with an old battery. New battery mine starts at -20, with OEM oil, I have heard as low as -30.

NorthMNSledder · Feb 22, 2011

I have a buddy with a similar problem on his Phazer. Coolant heater and the problem was solved for him. Two weeks ago with lows overnight around -35f and it fired right up in the morning as if it was 20 above (it was still -22).

Thumper · Feb 22, 2011

Cold starts

Thanks guys, for all the great info. The battery is stock so I will start there, I'll be needing one anyway. If that doesn't work I'll try the relay. I am currently using a full synthetic. Can't remember the weight, so I'll check when I get back to the shop.

Thanks Again
Thumper

Sledder_1 · Jan 20, 2012

Hi there

i had the same thing happen to my 2008 MTX Nytro today, would not start in cold weather,,, evenually the starter relay clicked but no go, kept pulsing the key, vented the tank and the thing started..... road for the day,, the returned to the truck.

then loaded in the truck again and drove home, tried starting it again in the truck...no go. pulled it off the truck and in the heated garage left it for 15 minutes, turned the key and it started first try !!

what are your suggestions or thoughts ?? seems you had similar problem...

Thanks
dwight

sledneck_67 · Jan 20, 2012

started my 08 last year at -40c and didnt fire the first time but fired the secound never changed the battery and just went to the thinner oil this year hope i will get a nice start this year

MTN_VIPER · Jan 20, 2012

Sledder_1 said:
Hi there

i had the same thing happen to my 2008 MTX Nytro today, would not start in cold weather,,, evenually the starter relay clicked but no go, kept pulsing the key, vented the tank and the thing started..... road for the day,, the returned to the truck.

then loaded in the truck again and drove home, tried starting it again in the truck...no go. pulled it off the truck and in the heated garage left it for 15 minutes, turned the key and it started first try !!

what are your suggestions or thoughts ?? seems you had similar problem...

Thanks
dwight

Dwight

The starter relay (solenoid) tends to get moisture inside and freeze/corrode.
Replace the relay (its the big one that the battery cable goes to and has two fuses on top of it) and adding some die-electric compound to the terminals usually fixes the problem.
The die-electric compound helps repel water and prevent the problem from happening again.

Bill

clatla · Jan 21, 2012

Does anyone have the part # for a replacement relay. I am guessing that everyone is just getting one from a auto parts store.
Thanks in advance.

Lococoin · Jan 21, 2012

It's only 30 dollars give or take from Yamaha. I just picked one up because mine is intermittently not starting first thing in the morning when it's cold.

MTN_VIPER · Jan 21, 2012

clatla said:
Does anyone have the part # for a replacement relay. I am guessing that everyone is just getting one from a auto parts store.
Thanks in advance.

Part # is 3EL-81940-02-00 It's called a relay, but I consider it a starter solenoid due to it's size. It's bigger then the black plastic relays most people think of when they hear the term "relay".

X2 usually only $30 to $40 from Yamaha

pylon · Jan 22, 2012

had the exact same thing happen to me after switching to a new wiring harness . a new starter solenoid and my nytros back in action . its a common problem , i ride with a dealer that carries a few spares in his trailer . there's also a relay up front on the sub frame that's been updated . its the second one out from the motor . just try to start your sled and if you cant feel it click that's your problem

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Nytro Cold Weather Starts

Thumper

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jskattum606

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Tuesday

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HDEMWET

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twincam88

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bigbird

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mmaxcarver

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NorthMNSledder

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Thumper

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Sledder_1

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sledneck_67

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MTN_VIPER

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clatla

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Lococoin

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MTN_VIPER

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pylon

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