660 weights and shim mod? - Yamaha Grizzly ATV Forum
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post #1 of 23 Old 02-03-2011, 09:52 AM Thread Starter
 
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Question 660 weights and shim mod?

I'm not impressed with yamamods grunt kit, what exact weights and shim do I need to bring it up easier. Any help much appricated.



2005 brute force 750 28" mudlites, Dyantek cdi, K&N filter W/ outer wear, VFJ stg 3 clutch. HMF exhaust.

2006 brute force 750 28'' mud zillas, Dynatek CDI,twins air filter, Full body skid plate, EPI clutch= 54+56g weights-maroon primary-green secondary.
2008 dodge 3500 qcsb 6.7 SSR,special B over a S478 turbo, 220's,ARP 625, 120% over, 5" exhaust, suncoast built tranny, 181/210 Hamilton cam, 110lbs Hamilton springs. 12v rods balanced crank. only 912hp 1782ft lbs of torque
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post #2 of 23 Old 02-03-2011, 10:15 AM
 
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Not sure what came in your grunt kit...but I would try a 1.5mm to a 2mm shim...im getting ready to put a 500 stall in mine...Wayup north says that will help alot also...what color secondary spring are you running???
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post #3 of 23 Old 02-03-2011, 10:30 AM Thread Starter
 
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2005 brute force 750 28" mudlites, Dyantek cdi, K&N filter W/ outer wear, VFJ stg 3 clutch. HMF exhaust.

2006 brute force 750 28'' mud zillas, Dynatek CDI,twins air filter, Full body skid plate, EPI clutch= 54+56g weights-maroon primary-green secondary.
2008 dodge 3500 qcsb 6.7 SSR,special B over a S478 turbo, 220's,ARP 625, 120% over, 5" exhaust, suncoast built tranny, 181/210 Hamilton cam, 110lbs Hamilton springs. 12v rods balanced crank. only 912hp 1782ft lbs of torque
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post #4 of 23 Old 02-03-2011, 10:56 AM
 
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Are you worried about losing top end???? If not go to ebay and punch in this number in the search.....190368299531....for like 10-11 bucks shipped to you..you get 2-1mm shims and 1-.5 shim....you can shim from .5 all the way up to 2mm (max) with this kit...I just did this for now and u will definitely tell a difference....I am prepping to send the sheaves off to mike to get work done so the shims will come out..but for a cheap fix...thrill these REALLY work!!... now I am getting ready to put an orange or purple spring on my secondary on the fence...but I think I am going orange...i run stock tires...so orange should be enuff...something else you might consider doing and they are like 25.00 from EPI....next and I am getting ready to do this also...Wet clutch springs...I am putting stronger springs in my wet clutch so that it revs approx...500 more rpms before she really bites...this is supposed to be the big kick...kinda like dumping the clutch type feeling....i have been told WHEELLIE city with all of this work done...so cheap way...shims 11.00 spring 25.00 and if you want to add wet clutch springs approx 60.00 they also have 1000 rpm stall but I think that is too much for what I want....now as far as roller weights I just got some lighter weights for mine I believe stock 660 is 18Gr my new ones are supposed to be 16GR I just bought a little gram scale to weigh these out and make sure they are proper...I have heard of guys going down to 14GR and also doing combos..BUT.. if you mix them they have to be set across from each other so to maintain balance.....Hope I have helped.....
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post #5 of 23 Old 02-03-2011, 11:43 AM
 
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what he said. I would do 16g with 1.5mm shim

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post #6 of 23 Old 02-03-2011, 11:59 AM
 
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^^^what they said, I'm prepping to install a 1.5mm shim 16g greaseless weights, epi blue secondary spring and stall springs, I've been advised thus is a good starring place for stock tires, I'm running 25" bearclaws.
What tires you got?

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post #7 of 23 Old 02-03-2011, 12:06 PM
 
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I'm guessing he has 27" zillas from his sig

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post #8 of 23 Old 02-03-2011, 12:12 PM
 
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Quote:
Originally Posted by Aarons grizznizz View Post
I'm guessing he has 27" zillas from his sig
Cool,
I'm using iPhone tapatalk so I can't see sig's.

03' grizzly sick60. AKA "THE PUNISHER".
hmf utility slip-on no quiet core.
dynatek fs cdi w/ngk iridium plug.
dynojet kit.
pro-design k&n kit w/outerwear.
epi sport utility clutch kit w/greaseless conversion.
oil filter magnet mod.
25" kenda bear claws.
powermadd guards/spider grips.
quadworks gripper seat cover.
fro systems ally tank vent.
allen mossy oak front bag and fender bag.
"THE PUNISHER" decals.
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post #9 of 23 Old 02-03-2011, 01:22 PM
 
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He said he has a grunt kit installed so that means he has 1.5mm in shims with lighter weights already.
He says he wants to bring the front end up easier. You need to add enough shim to make it 2mm. You need 500rpm wet clutch springs from Hauck.

Hit the clutch kit thread in my sig to see where and how to get these two items.
As far as the wheelie there is NOTHING more you could do to get them than this in the clutching.
Search on here for my carb slide spring mod and do that also.
Make sure you post back up in this thread someday to tell us how it all worked for you.

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post #10 of 23 Old 02-03-2011, 04:56 PM
 
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You can get the 500rpm wet clutch springs and a secondary spring from hauck like wun said for $60.00 , but I don't see anything on how many lbs the secondary spring is.

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post #11 of 23 Old 02-03-2011, 05:25 PM
 
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Quote:
Originally Posted by wayupnorth View Post
He said he has a grunt kit installed so that means he has 1.5mm in shims with lighter weights already.
He says he wants to bring the front end up easier. You need to add enough shim to make it 2mm. You need 500rpm wet clutch springs from Hauck.

Hit the clutch kit thread in my sig to see where and how to get these two items.
As far as the wheelie there is NOTHING more you could do to get them than this in the clutching.
Search on here for my carb slide spring mod and do that also.
Make sure you post back up in this thread someday to tell us how it all worked for you.
Um.... Grunt comes with only a 1mm shim, not 1.5 and 4 lighter 16ish gram weights. So if you're going to go shim wise stick another .5mm to it, and like me and whole bunch of other people, go Greaseless.

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post #12 of 23 Old 02-03-2011, 07:02 PM
 
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Buy 2 .5mm shims and try a full 2mm first, it's 25% better than using 1.5mm and a VERY noticable difference.

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post #13 of 23 Old 02-03-2011, 07:31 PM
 
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I have the 500 stall spring, blue secondary, 16 grams roller and 1.5mm shim, with 27" zillas I have no problem doing wheelies in low or high..

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post #14 of 23 Old 02-04-2011, 09:27 AM Thread Starter
 
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Isn't a 2mm going to take away my top speed a lot I can only go 46mph with the grunt kit and before it my top speed 69mph with my brute fore I sent my whole clutch to a machine shop and I loss no top speed but it cost $350ish but I'm still able to go 78mph on outlaws and what would a stall spring do and a secondary



2005 brute force 750 28" mudlites, Dyantek cdi, K&N filter W/ outer wear, VFJ stg 3 clutch. HMF exhaust.

2006 brute force 750 28'' mud zillas, Dynatek CDI,twins air filter, Full body skid plate, EPI clutch= 54+56g weights-maroon primary-green secondary.
2008 dodge 3500 qcsb 6.7 SSR,special B over a S478 turbo, 220's,ARP 625, 120% over, 5" exhaust, suncoast built tranny, 181/210 Hamilton cam, 110lbs Hamilton springs. 12v rods balanced crank. only 912hp 1782ft lbs of torque
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post #15 of 23 Old 02-04-2011, 09:29 AM Thread Starter
 
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Quote:
Originally Posted by merky1761 View Post
I have the 500 stall spring, blue secondary, 16 grams roller and 1.5mm shim, with 27" zillas I have no problem doing wheelies in low or high..
What's your top speed with all that done



2005 brute force 750 28" mudlites, Dyantek cdi, K&N filter W/ outer wear, VFJ stg 3 clutch. HMF exhaust.

2006 brute force 750 28'' mud zillas, Dynatek CDI,twins air filter, Full body skid plate, EPI clutch= 54+56g weights-maroon primary-green secondary.
2008 dodge 3500 qcsb 6.7 SSR,special B over a S478 turbo, 220's,ARP 625, 120% over, 5" exhaust, suncoast built tranny, 181/210 Hamilton cam, 110lbs Hamilton springs. 12v rods balanced crank. only 912hp 1782ft lbs of torque
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