SD4WHEELIN
Junior Member
 Offline
Location: BROWARD COUNTY
Posts: 73
Polaris 500HO Grizz660 YZ85 Polaris 90 Polaris 330
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« on: September 16, 2006, 10:28:09 AM » |
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need help with grizzly 660 wont reach top speeds
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Fox17
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« Reply #1 on: September 16, 2006, 10:31:50 AM » |
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you put too big of tires on it. lol. j/k. i dont know? take it to yamaha. thats what we do.
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UncleRico
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« Reply #2 on: September 16, 2006, 10:48:36 AM » |
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need help with grizzly 660 wont reach top speeds
Can you be a litte more specific? |
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UNLUCKY #13 RACING "I want to thank my sponsors, Jack Cass Bail Bonds, The Cleveland Steamer Carpet Cleaner Company, The Rusty Trombone Pub, and Dirty Sanchez's Liquor and Check Cashing."
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Joedirt
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« Reply #3 on: September 16, 2006, 11:04:54 AM » |
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You have a bad wiffle valve , I suggest getting a can of compression.
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2005 Vinson 4x4
2003 Big Bear 4x4
2001 Prarie 4x4
1987 Dirty Dakota Mud truck on 35 inch Boggers
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UncleRico
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« Reply #4 on: September 16, 2006, 11:19:16 AM » |
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Did you check for melvis diumprus in your carb?
Sound's like dust weevils to me.
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UNLUCKY #13 RACING "I want to thank my sponsors, Jack Cass Bail Bonds, The Cleveland Steamer Carpet Cleaner Company, The Rusty Trombone Pub, and Dirty Sanchez's Liquor and Check Cashing."
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Chillinthemost
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« Reply #5 on: September 16, 2006, 09:01:04 PM » |
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How many times has it been sunk? I dont mean to assume, but there are those that believe injesting muddy water into your motor and CVT transmission wont do any damage.
You probably dont have any compression if the above has happened. If the motor is reving but you arent getting any MPH then your CVT needs to be taken apart and serviced.
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YFZ FTR B-Open #12
Chillin Jr. FTR Super Pee A #12
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SD4WHEELIN
Junior Member
Offline
Location: BROWARD COUNTY
Posts: 73
Polaris 500HO Grizz660 YZ85 Polaris 90 Polaris 330
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« Reply #6 on: September 17, 2006, 12:53:56 AM » |
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the bike has 300 hours on and has never been sunk in the mud, was hitting 68,69 mph but now only goes 65 hung out
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qt314nfla
Guest
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« Reply #7 on: September 17, 2006, 01:06:54 AM » |
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Have you cleaned the air filter? Or upgraded your air filter for more intake?
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Fox17
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« Reply #8 on: September 17, 2006, 09:24:42 AM » |
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bigger tires would do that. more stuff on it like big cargo boxes and stuff would too. and the terrain you are on will do that. also if you are judging by the factory speedo it is wrong anyway. they go by engine rpm and not how fast the wheels are spinning. our rancher goes bout 40 to 50 depending on all of the above. we never worried bout it. 3 mph aint that big of a deal is it?
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SD4WHEELIN
Junior Member
Offline
Location: BROWARD COUNTY
Posts: 73
Polaris 500HO Grizz660 YZ85 Polaris 90 Polaris 330
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« Reply #9 on: September 17, 2006, 11:56:19 AM » |
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its not really the mph its the power i can feel the loss its been into yam 4 times they did a jet kit but it didn't really help i can be going 35 or so and hit it and it will go about 45 then bogs down pops and farts sometimes will almost die out i pump the gas up down a few times and it comes back it just seems like i don't get full power out of it this bike is stock been babyed it has 589's but they are stock size no bags or big racks
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MuddFreak77
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« Reply #10 on: September 17, 2006, 11:59:08 AM » |
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SD do you have a snorkel??? Its sounding like either your not getting enough fuel or air. Also just for S-n-G's have you tried checking your spark plug boot and changing your spark plug?
Freakk
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Never argue with an Idiot. They drag you down to their level, and then beat you with experience!
'07 Suzuki King Quad
3k Warn Winch
GPS
2001 F-250 4X4 Diesel, 6 way hand
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SD4WHEELIN
Junior Member
Offline
Location: BROWARD COUNTY
Posts: 73
Polaris 500HO Grizz660 YZ85 Polaris 90 Polaris 330
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« Reply #11 on: September 17, 2006, 03:20:25 PM » |
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yeah freak put a new plug in and wire is good, use to just get up to speed no problem but seems now i have to go about a mile or so to get it up to speed
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qt314nfla
Guest
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« Reply #12 on: September 17, 2006, 07:52:13 PM » |
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I'm in agreement w/ freak it sounds like it's not getting enough fuel or air. I had a similar prob on my quad before the jet kit was put on it and it was tuned. It may just need tome adjustment of the carburator. Any info on the air filter?
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MuddFreak77
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« Reply #13 on: September 17, 2006, 08:24:26 PM » |
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Does the engine sound any different? The other thing you might want to check is your exhaust pipe, it might be plugged.
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Never argue with an Idiot. They drag you down to their level, and then beat you with experience!
'07 Suzuki King Quad
3k Warn Winch
GPS
2001 F-250 4X4 Diesel, 6 way hand
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Chillinthemost
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« Reply #14 on: September 17, 2006, 09:47:01 PM » |
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At what point did it start running bad? Did it ever run right after they messed with the jetting?
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YFZ FTR B-Open #12
Chillin Jr. FTR Super Pee A #12
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Joedirt
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« Reply #15 on: September 19, 2006, 08:26:41 AM » |
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Similar thing happened to my old Grizzly..I actually blew the seam on the Muffler....start it up and see if you can feel air coming out the top of the pipe...??..maybe pull the jets and clean them...
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2005 Vinson 4x4
2003 Big Bear 4x4
2001 Prarie 4x4
1987 Dirty Dakota Mud truck on 35 inch Boggers
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