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my 550 only has 900 miles on it an it just dont seem to have a hole lot of low end grunt when in high range what i mean is i can be at a dead stop an gun it an the rear tires wont even break free an the front end wont even come off the ground i owned a400 honda rancher that had more balls than this quad any sujestions on how to make this quad better
 

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Are any mods done to it already ?
A 550 isn't exactly a power house but it should out do the rancher. The rancher might feel snappier because of the low 1st gear but I promise it doesn't have more power.
You probably will want to do some work to the cvt to get a lower ratio, especially if you have bigger tires. That will get you some more grunt for cheap.
 

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Hmmm...your grizzly must be a sow.
 

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What tires are you running on grizz?
 

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Hey Whiskey, how about a higher pulley ratio for more low end pull.
This is like changing the sprockets on a chained bike to change the srpocket ratio.
For those asking about mods., a signature lets everyone know about your bike.
Having a 550 is one thing, but tires and such need to be know.
Plus, the signature shows in all your posts so in long thread we don't have to go back.
 

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Consider total weight of gear and rider?
 

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Those could have increased the drag to the drive line by 11%.
Raise the pulley ratio to overcome the additional drag.
 

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how do i do that
What do you know about the C.V.T. system?
We widen the primary so the belt rides lower in the primary and higher in the secondary.
These are very sensitive and we work in tenths of mm's to make changes.
 

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Most 550/700 will take 1.7mm.
 

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Gee, wonder what happened? My Grizzly has balls!?!? :icon_ goofy:

 

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Finally! Someone with a sense of humor.
 

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what size shim do you recommend start with
Lets get on track.
If you are talking 660, I bought 2) 1 mm shims and 1) .5 mm shim.
This allows flexibility to stack from .5, to 1, to 1.5, to 2 to 2.5 mm's.
I've not heard of a 660 that would not take 2 mm's and most accept 2.5 mm's. The limiting fact on the 660 is the spline engagement for the cam plate.
The 660 has more room between the grease cover screws and the cage than 550's and 700's and for the 550 and 700 models after 1.7 mm's of shim the screws start rubbing the cage. Others have ground notches for clearance to get to 2 mm's but then the spline engagement becomes the limiting factor on 550's and 700's.
If you haven't had one apart its tough to understand. Need a video or two?
 
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