When i went riding the other day, i came across a couple of guys that were out to get dirty [img]i/expressions/face-icon-small-smile.gif[/img] It was in the Mulligan and there is some really nasty soup holes in there. Well i went through one of the holes first and was able to work my way out, but it seems like there is an RMP limiter on when you are in the muck? Forward AND Reverse...is there some type of RPM limiter on the 660? The 600 was able to work his way through the same hole with just pure raw power. For me, as soon as the bike came to a stop, i had to "work" the gas to get the tires to even TRY to spin. It would sputter just like in reverse in the mud. Telling ya now, if i can get rid of the limiters on this bike....i dont think anything would stop it.

I know the 660 has the dif lock and the 600 doesnt, but he OUT PERFORMED me in the mud.

Anyone else have seen this? What can be done to ELIMINATE that limiter, or is that the problem?

One quick note: If you can keep the tires spinning, it wont do this but if the tires stop at all, then you play hell just trying to get them to spin again.

Jonathan

 

Frogman~

A 660 should never be outperformed by a 600 grizz. Yes, the 660 does has a reverse limited, and yes it's a POS, especially in mud & snow..which is why mine was toasted a long time ago. You have speed limiter while your front diff is locked...when your speedo hits 22mph you're done (even if you're not moving because it's wheel spin)...that's why I bypassed that as well. Lastly, if you're in low range, I believe the limiter kicks in around 40mph..again you may not be moving that fast, but it's wheel speed. That I've not bothered with, never really had it responsible for a stuck or anything. Hope this helps.

SilverBear

 

My griz has the same problem! As long as you keep the tires spinning no problem but stop,and it acts like the override starts in. Forward or reverse!!
[img]i/expressions/face-icon-small-mad.gif[/img]

 

I have a 2002 griz as well as 99 I am talking about my 2002 griz

 

Silverbear,

Its at a dead stop, the wheels arent spinning at all. That's the whole point. When i come to a stop (in muck) the engine sounds just like the rev limiter, it will start sputtering. I will have to rock the bike and play with the gas on and off until it starts to move again. IF the wheels are spinning, it doesnt happen. I have am not having this problem in water (DEEP WATER) just the muck. The 600 was able to stop and start over and over, as i was fighting just to get the wheels to move. the wheels would move about 2 inches and then the engine would sputter.

any feedback?

Jonathan

 

Frogman & Yamitothecore~

First off..I have to ask a stupid question...when you're in the muck, and stopped, you are in low range when you start?

When you come to a stop...is that when your engine starts to sputter? If that's the case, it almost sounds like there's steam being generated and it's being sucked through the air breather's snorkel and causing the cut out. I've never had this happen to me, but I've read about it happening from quite a few folks. Do both of you have die electric grease on the spark plug boot? Perhaps if it is the steam...while you're moving, there's enough air flow, but when you stop it gets sucked into the airbox.

SilverBear

 

What kind of tires are you running and in what range? I personally think the automatic sucks. Big tires don't pull very well at all in high range with it. Different clutch weights would have to help this. Its obviously not the engines fault for lack of power though.

The bike pulls stock tires like crazy, but have you ever picked one up? Takes one unstrained finger to lift it. The stock wheels weigh nothing at all, and the tires, albeit cheap, are almost weightless themselves. Looks like Yamaha set it up to perform great stock, but did not have oversized tires in mind when they set up that tranny. Thats my best picture I get when you are talking about coming to a stop in thick mud and then trying to get started again. About like coming to a stop in the mud with a manual shift quad in 2nd gear, then trying to get going again. Too high of a gear for what you're pulling. Thats what the automatic seems like in high with big heavy tires.

Bring on the 660 manual 6 speed with ulta low 1st and a 70mph 6th gear!!!

 

Here is the senerio,

I am LOW gear, dif lock is on and i am ***** to the wall. about 1/2 way through, get a lil hung up (high center) either on muck or a clump. When you come to a stop and hit the gas, it sputters. IF i just baby the gas a lil, it will start to pull, but if i push on the gas a lil harder, it starts the sputtering. NOW, if i rock the bike from side to side and get the tires to spin, it will stop sputtering. YA KNOW, it is almost like it is in to high of gear? you would think that 660cc's would be enough to turn those wheels. The rims are stock and the tires are DD's. They clean out good (as good as ITP 589's). Not like the tires are full.

When it comes to the boot, yes, dielectric. Also, side panel mods. So now what? lol

Here is a quick story: Molly (in an electric wheelchair for life and 6) comes into the house and is just covered in dirt/mud. Her mom yells at her "You are going to break you chair, stay out of the dirt!". Molly retorts: "but mom........dirt is my life!" with a small tear in one eye.

Well gents, this is me.....DIRT IS MY LIFE!

Jonathan

 

Something is not right then. All the bases are covered for simple fixes. I don't know what to tell you on that. I like to blame the belt drive for not having a low enough gear, but who knows.

 

Ya'll do seem to have all the bases covered on this one. But there is one thing I thought of that could be the culprit. Frogman....how much gas did you have in your tank? Could this be caused by having a low tank? I thought of this when you mentioned that if you rock it side to side it would stop sputtering. I just thought that I would throw this possibility out there.

Scott