How many vipers with starters going bad?

[fc8464]

If I was at the house I would do one real quick but I am out of town till Nov.

 

[Joe ltx-le]

I haven't. I am sure a thicker cable will help. A nice welding cable is what we used to use on trucks. But think about it. Same wire is used on Turbo Cats. How many of them have broken a gear?

Good question

 

[Vilas]

Why would a voltage drop on the positive cable cause the motor to kick back? I guess I don't understand what kickback means. I was assuming it was early detonation before the piston was top dead center. The detonation would then try to force the piston down when the starter was trying to push it up. Someone please enlighten me here because I'm pretty confused. I can see how a loss of voltage across the positive cable would make starting more difficult but how would low voltage cause kickback?

 

[Studroes144]

Why would a voltage drop on the positive cable cause the motor to kick back? I guess I don't understand what kickback means. I was assuming it was early detonation before the piston was top dead center. The detonation would then try to force the piston down when the starter was trying to push it up. Someone please enlighten me here because I'm pretty confused. I can see how a loss of voltage across the positive cable would make starting more difficult but how would low voltage cause kickback?

Remember that kickbacks were basically unheard of prior to the 2015's and the 2015 ecru flash, which tells me that they maybe had the 14's right or darn close and maybe low voltage through the long 6' cable is throwing it off just enough. Lots of 14's complained of hard hit and/or cold starts, but not kick backs.

 

[Joshua]

I have a hot start issue. How would a under sized wire cause that?

 

[titanrcr]

Why would a voltage drop on the positive cable cause the motor to kick back? I guess I don't understand what kickback means. I was assuming it was early detonation before the piston was top dead center. The detonation would then try to force the piston down when the starter was trying to push it up. Someone please enlighten me here because I'm pretty confused. I can see how a loss of voltage across the positive cable would make starting more difficult but how would low voltage cause kickback?

I don't think low voltage is causing kickback, it's most likely to much timing advance while cranking causing kick back. Under size battery cable could be using up much of the battery's energy which would cause the engine to crank slower and in turn more likely to kick back. Just my thoughts...

 

[rubrsidedown]

I'm in hope they have a "real" fix and this issue/problem goes away and soon and it's covered under warranty.

Jeff B In Maine

 

[trevorl1]

Best news I've heard in a while, I called my local dealer again and they are going to cover my parts under warranty even though it's almost a year over the warranty.
It's perfect now instead of buying 1500$ on parts I can buy the stuff I want for my sled.
Parts will be in next week.

 

[sxr70001]

I'm glad to hear Yamaha is going to take care of it. That means they are owning up to the problem.

 

[Joe ltx-le]

Why would a voltage drop on the positive cable cause the motor to kick back? I guess I don't understand what kickback means. I was assuming it was early detonation before the piston was top dead center. The detonation would then try to force the piston down when the starter was trying to push it up. Someone please enlighten me here because I'm pretty confused. I can see how a loss of voltage across the positive cable would make starting more difficult but how would low voltage cause kickback?

 

[cannondale27]

Why would a voltage drop on the positive cable cause the motor to kick back? I guess I don't understand what kickback means. I was assuming it was early detonation before the piston was top dead center. The detonation would then try to force the piston down when the starter was trying to push it up. Someone please enlighten me here because I'm pretty confused. I can see how a loss of voltage across the positive cable would make starting more difficult but how would low voltage cause kickback?

I am with you. I am guessing that most claims of Kickbacks on startup are not a kickback at all. Not timing related but fuel related. Either lack of it. Lean. A misfire or at worse a hydrolock. Problem is for MANY the mapping of the 15 flash works and works way better than the 14 flash. Real issue is why not everyone?

Someone asked how wire can fix hot start? That is exactly reason we put bigger better cables on our trucks and cars. Especially with a header. Which heated up starter. When hot all metal requires more amperage to flow electricity and work. Starter gets hot and requires more. If wire can't deliver it starter won't work. Then again the Hot Starts I have seen starter cranked over just fine. I think we can all agree they leaned out start and idle with 15 flash. I have talked to 3 2014 owners that had terrible hot start issue and all three were very happy with the 15 flash which leaned out start and idle. Problem is the rest of us that did not have hot start now have crummy idle and in some cases blown starter.

 

[savageman69]

seen this on another forum

"I just heard last night at a snowmobile show,

Seems as though Cat and Yamaha have finally figured what the issue is.
With the battery being under the seat of these sleds and the positive cable being nearly 6' long they sized the wire wrong from the factory. The longer the run the larger the wire needs to be to carry the volts needed to start these 1049cc motors. From time to time the voltage is a tad too low causing the motor to kick back snapping the drive rings on the starters.
SO, there SHOULD be an update coming out soon to upgrade these 7000s from what I was told last night. Unless it was a made up story and if so it's a good one because it makes perfect sense to me."

 

[DK77TA]

I was at my local Yamaha dealer on the weekend and asked about the starter issue. They told me Yamaha was working on a re-flash and starter update, he said they were hoping to have it before the start of the season.
He also told me to hold the starter on until it starts, same as other members have said.

 

[trevorl1]

Just got my sled fixed under warranty.
The sled was a year out of warranty and they still covered it. The mechanics said that the rep told them any with starter issues will be fixed regardless of warranty has expired or not.
Also they went to a seminar and the new 16 updated motor the problem has supposedly been fixed and there's an update coming for the rest of us.

 

[Studroes144]

Just got my sled fixed under warranty.
The sled was a year out of warranty and they still covered it. The mechanics said that the rep told them any with starter issues will be fixed regardless of warranty has expired or not.
Also they went to a seminar and the new 16 updated motor the problem has supposedly been fixed and there's an update coming for the rest of us.

That's great to hear! I think anybody should be able to get their starter covered with or without warranty as long as the owner and the dealer put up enough stink about it.