Secondary damage

[monker]

Anyone ever have secondary damage on the aluminum on the backside of the buttons? I was looking my sled over getting ready for asphalt and noticed the aluminum on the back side of each button on the secondary was cracked. I checked the spring which was fine, and clearances without the spring were fine. There wasn't any binding or contact that I could find. I'll have pictures of it this evening.

 

[4Fighter]

I believe I noticed this on mine too, but upon further inspection, they apear to be non-threatening. It seems that most of the cast aluminum pieces on these sleds look cracked at first glance, but are structurally sound.

However, I will have to re-check mine come fall now.

 

[Turk]

Those are casting marks...no problemo.

 

[monker]

no, these are NOT casting marks. I'll get pics when I get home from work.

 

[LazyBastard]

I wonder if you're overstressing it with the supercharger?

 

[ReX]

Does it look like this is about to happen?

One other post was cracked. This one was broken.

The new parts and installation cost almost $700 (was halfway through a sledding trip and didn't have any option)

 

[monker]

yes! one is busted like that, the other 2 are cracked.

 

[DaJudge]

Easy fix. Put a roller conversion on it. It will work better that the buttons too. I would say talk to Maxximum but they are no longer there so try Pioneer and talk to Bruce.

 

[dirkdiggler]

This happened to Neon phil and his buddy Arts secondary's as well.


Call bob At Lightning Pro he can setup you secondary as a roller that uses OEM style helixs.

 

[monker]

anyone know the cause if it? The buttons don't show any damage. Here's the pics...

 

[alaskanbowtie]

WOW .....looks like some more problems showing up

I feel bad for you guys, I have a Mnt. max with a #*$&@ load of miles and never have had any issue's with it at ALL ! Seems like more and more things are showing up as people start putting more miles on there sleds, hopefully this isn't a Yamaha problem and is isolated, time will tell ! I wouldn't jump to any conclusions just yet. Are all these brakes on boosted sleds or stock ?

 

[DaJudge]

My guess would be too much HP. Thats why I think a roller unit will help you improve the transfer of HP to the track. I am using a Rocker RollerII on my Rage, but I ran out of snow to finish my testing.

 

[monker]

I'm not running anything crazy for hp. Just a supercharger at 7lbs. Lots of turbo guys running big numbers without any problems.

I'm just going to use another stock secondary that I have. What's to say a roller wouldn't be affected in the same way, taking out a bearing or another casting?

 

[ReX]

My drivetrain is 100% stock but did run an Ulmer Stage 3 clutch kit for a few 1000 miles as well as a set of CR10EK spark plugs for a few 1000 miles more than the clutch kit (part of last season and part of this season).

There are a few other threads on these secondary failures (identical failure).

I noticed the new secondary looks like it has more metal where the old one broke (I didn't measure anything to make sure certain though).

 

[LazyBastard]

That is DEFINITELY a torque related problem. Blower caused it.