HOW TO: Grizzly 660 Clutch Maintenance, Primary and Secondary
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- čas přidán 21. 03. 2013
- If you have never seen the inside of your Grizzly's (dry) clutching system, this is a video explaining the steps to take for tear down, maintenance, and assembly of the Primary and Secondary clutch sheaves.
I tried to keep it entertaining for the more boring parts - Auta a dopravní prostředky
i have a 2006 grizzly 660. i put some hardware cloth 1/4 inch sq. to prevent rodents from getting into the clutch breather tube, it is my experience that they love to build nests under the front top cover. a good idea every spring to remove it for inspection as they also will chew on the wire harness, i had to replace mine before i new this was a problem, this is a great video. thanks
Thank you for all your videos ! You are giving a great help and confidence on maintaining our bikes ourselves. I did watch this video and the one about wet clutch maintenant many times. My one way bearing was toast, and I decided to give it a try. In 4 hours, I actually did the job, and my engine brake is back now. I'm really proud as I'm no mechanic at all.
This is mainly thank to you, and your awesome videos. I basically reproduced what you did, and it went very well :) So, thank you, my 660 now has engine brake again, and I did it myself :P
I would not have had the confidence to do it without all your maintenance video. Thanks again.
I'ts nice to hear prom people like yourself who did thier own repairs sucsessfully.
You are very welcome for any info you took away from my videos. I think it's importaint to try repairing your own equipment. it's gets you more farmiliar with the machine, it's capabilities and you pick up a new skill.
Excellent video! couldn't ask for a better explanation.
Nice bike! I have a green 02 grizzly 660 and she runs like a champ. I inspect mine every spring, I go over the whole quad.
Great video man! Love seeing grizzly videos, got and 05 myself
Thanks so much I'm changing my primary clutch on my 660 that was very helpful
Thanks man, Yeah i do the same every spring. The engine has never caused me any problems in the past.
First I would to thank you so much for all of your help.It was very imformative. thanks again.
grate vidd,i have a 06 grizz and dint know how the belt came off.yamaha does make a dam fine machine.
This video really helped a lot.
Thanks for the info, good job.
I love my bike. And i had an HMF swamp series XL on it too. I just found it a bit too loud for me. especially if i have to do any amount of road running.
well a blown water pump seal would put water into your engine oil, increase the pressure inside your crank causing the oil to "puke" back out your breather tube and into your air box.. so i would start there. There is a video i did on a water pump seal change for a rhino in my other videos. Thanks for the view.
Yes i had heard of the greasless weight assembly. The sliders have a poly type material inserted to use instead of grease. Your pilot jet only controls idle. As soon as your slide moves, the needle and main will take over. My suggestion would first try to raise the needle out of the main first. It sounds like there is not a sufficient amount of fuel passing by it at that point to allow smooth throttle operation. To confirm this, at the point where it starts to bog, slowly move the choke slide.
Thanks for the education!
Thanks for this vid! Getting ready to put a Dalton clutch kit onto my '07 Grizzly and this is the best explanation yet. Will be first time behind the clutch cover so will be an adventure. Go from 26" ITP Mudlite XLs to Tatou 4S tracks in winter. Any wisdom to offer on clutch kit configuration? They recommend combining the weights provided for 26-27" tires and use stock secondary spring but wouldn't it be best for performance with tracks in our 6 month Canadian winters to go all the way with their blue spring on the secondary as well? Maybe even use all lighter weights instead of combo?
Yamaha does not use a conventional belt system. they use the best in my opinion. there is no need for shims anywhere on the primary or secondary clutching system, Yamaha uses very low maintenance belt drive systems. The only modifications you might need to do to a Yamaha belt system would be a clutch kit on tires over the 27" size. and Bruces 650 is holding up very well. Thanks for watching.
Landy Burkland The clutch cover consists of four 10mm bolts, Two up top, two down below. There are metal guides that must be in place before reassembly. Once removed, pull straight away from the clutch. Then you are done.
I try not to show the simpler things in my video because people complain they are too long.I guess i cant make everyone happy.
I think your videos are a great form of info. I have a 2002 660 that over heated.The oil looks milky and the air cleaner box had oil in it.So what do you think?
theres a fairly simple way of testing to see if your head gasket is toast. remove the rad cap and spark plug. take a skinny wine cork .. or cut one.. and drill a hole through it, place the tip of your air gun through it. place your piston at TDC (Top Dead Center) as if you where going to adjust valves. Blow compressed air down your spark plug hole sealing it off as best you can. If your coolant bubbles or you can hear air escaping through your open rad, you have a blown head gasket.
Hate to Nerf a old thread but just wanted to say thanks. Well done.
Thanks. lol. Well as gross as it sounds, with the mouse out of there, its stopped making a whistling sound through my intake snorkel. He was stuck right where the bell housing goes into the case for the clutch cover. so there had to be some restriction there. Oh well. Lesson well learned! Thanks for watching!
Mine is snorkled also but I use marine grease does a lot better with moisture .
So I'm new to my Grizzly, 02 660, and I was concerned about the little whine it does but it sounds normal after hearing yours.
Hey cool vid. Have you heard of ceaseless weights? I plan on doing that as soon as I figure my carb/dynojet/ kn air filter problem. Quarter throttle dogs out and spits. I can place my hand over half of the air intake runs fine. Do you think I need a bigger pilot jet?
Lmao holy chit,I’m looking for information on how to check for a mouse in the exact same spot,I can smell the turd threw my snorkel as well,and poly do some maintenance on my belt as well ,holy chat that was funny
haha.. i get allot of comments on those. I'm glad you got something out of it. I'm not perfect at doing "How To" videos, but i figured it would be nice to post of what i do know.
Great advise but let me ask you a question.When the head gasket does fail does it allow water to get into the crank case?Or does water only get in the crank case from a water pump seal.Some have told me that the only way you can get water in your crank case is is from a bad water pump mech seal.This is all new to me I have never worked on a motto or atv.Thanks for your help Guy.
Bahahaha I lost it at the WHAT?! with your pinky
Ruyguy...I am trying to get the put back on but the washer isn't allowing enough threads for the nut to start. I have squeezed the belt together to allow for more room but its still coming up short and hitting the belt. The belt is spinning freely as well. Any thoughts? Thanks
Do you know what the torque specs are for the primary and secondary clutch?
How do you remove the safety cage bearing for the clutch
Nice period of instruction. I have a 2003 Grizzly and I can feel a click or something on the outside of the clutch cover. Can you tell what that might be??
If its consistent while idling id say your primary sliders might be starting to seize up. If it's on and off with RPMS you may have a secondary spring broken. Assuming you have not felt performance loss, it could also be just the small carrier bearing in the primary support basket worn.
Could also be your belt starting to de-laminate
Hard to tell really without seeing or hearing it. Id suggest to just go ahead and pull the clutch/belt cover off and start looking around for abnormalities
Very informative video. I am shopping for a Grizz 660 now. Question, the threads for the nuts that hold the clutch on, do they twist to the left?
Yes. Standard thread.
Great video! I have a 2006 660 that I bought last year. I was wondering what your top speed was? I'm only seeing 40mph, is this normal? Wondering if I should open up the clutch and take a look? How long do the belts normally last?
Hello there, thank you for commenting.
In stock form my Grizzly 660 did 115km/h . I have bigger tires and a Dalton Clutch kit installed and the top speed was reduced to around 100km/h
If you are only getting around 40mph, i would first take a look at your belt width and wear, make sure it falls within the specifications from Yamaha.
Secondly what may be happening is the grease inside your primary may have mixed with dust.dirt over time and is not causing the primary to close up far enough and bottom out.
I would start with a good clutch cleaning, and belt inspection. That should be done as part of your regular maintenance.
Cheers: - Ruyguy8888
Ok so I just replaced the belt on my 2003 grizzly 660 and put it all back together and it spins fine in park but I put it into gear and it wines and the primary clutch stops spinning. Help please!
Do you have all your vent-lines snorkeled? especially the one that comes off the carburetor? When is the last time you dissasembled the gas cap breathing vent? are you sucking in water through that. many of them splash water up into the gas tank vent line and it will Vapor lock your bike. Try those things first and get back to me.
I stumbled across your video and it was very helpful. I am kind of in the same boat as you. I went to school for heavy axle so this atv small stuff is a mystery to me. None of it looks too hard. My 1999 grizzly I got for cheap because the clutch was slipping and I thought how hard can this be? Your videos helped. I do have a few issues. First one being. The bushing the primary rides on. How does that come off? Mine seems to be seized on there or a locking pin is holding it in. I'm not sure. It was late. I was 3 beers into it I just gave up. I can't get that back sheeve off without that bushing. I wondered if it needed a special puller or something.
Any thoughts?
There should be no special pullers needs for either the primary or secondary. For a parts breakdown, I usually refer people to a place like yamahapartshouse.com Find your bike model and select the component group for a full parts break down similar to a microfiche.
I love my 2005 660, It does good in mud and sometimes in water, but If i go into deep water and water wheelie it shuts off. It's snorkeled. But I can't seem to find out why it shuts off in deep water lol it's not the plug getting wet either. Things are just ment to bother me....lol Nice bike also.
8:12 No it isn't. It's attached to the wet clutch bell.
So, when putting the primary all back on the shaft, it the inner plate, belt, and then the primary itself? No washer between the first plate and the belt? I have a washer left over and i think it is the outer one
If you have a washer, more than likely you have bought the bikle second hand and that is a cheap modification that the previous owner has done to increase low end tourqe. A washer between the two sheaves will allow the belt to rid lower in the carriage causing a gear ratio change.
Hi there ! I just bought a 02 660 like yours. 3800 miles. Supposed to have been well maintained. The seller told me sometimes I’d need to rock it into L Ram it today for first time to plow and it did good but noticed it has a hard time getting into L. Kind of have to try and get it there 2-3 times. Sometimes it goes first time. Then a few times going into reverse it got weird and once or twice made a grinding noise after going into R and then went away fairly quickly. Seems like it has a hard time getting shifted all around when plowing back and forth etc. Any ideas ? He told me just need to change oil and coolant and that he did the diffs. I asked about transmission and said nothing to maintenance. Im new to 4wheelers. Watching you bud now !
First thing to try is a shift linkage adjustment from your shifter to the transmission . Check for excess wear on the small ball joints that go into the shift arms on both the shifter side and transmission side.
If it still is very hard to shift after that point, you may have a bent shift fork inside the transmission from the previous owner and it will require extensive work to correct.
Hey ruyguy been really enjoying the videos, new subscriber here. I have a question bud I have and 05 grizzly 660 which I’m about to do clutch maintainence on and was wondering what grease to use I believe they discontinued the grizzly tub grease and I’m trying to find a good grease to use I don’t want to use just any old grease. Thanks bud god bless
Thanks first off for the sub.
I've learned from working on several Ultramatic clutches that there really is no substitute for the Yamalube ultramatic grease.
It's the only OEM recommended grease in the service manual but there is a reason. 1st is the high temp resistance. It wont sling inside your belt casing causing slippage and premature belt wear.
2nd is the water resistance. Even high cost lubes like lucas red n tacky absorbs some water/moisture and can turn white
3rd is it's not a clay based grease. Most general purpose greases will have some sort of organic material and will harden over its lifetime causing plugging issues in grease passages and causing poor surface to surface low resistance. Yamalube Ultramatic grease is a synthetic base and wont do that.
I know it sucks to pay for OEM grease from the dealer, but do it once and forget about it till the next belt or clutch service. Then you ill still have some leftover for the next round or to.
@@ruyguy8888 I can’t buy it at all the ultramatic grease they say it’s been discontinued and there was a guy who said his dealer told him to use the Yamaha poly something lubricant I believe it’s what they call for on the secondary sheave shaft etc or something like that in place of the ultramatic grease
@@ruyguy8888 I don’t mind paying the 30 or 40 for a tub of it if I could find it
Maybe you can help with my problem. I installed a new carb. (Old one was junk) Set valve clearance. Put a new plug in. I have gas blowing into the airbox anytime the engine is running. It gets worse when you rev it up and it loses power and bogs down then back fires. I turned the air/fuel mix all the way to lean and even adjusted the carb needle all the way down. Still no help. The funny thing is when in neutral it idles and revs up great, but has gas blowing into the airbox. Someone said the intake valve is stuck or bent and that's why fuel is blowing back through the carb. Any thoughts or ideas would be appreciated. 2005 Yamaha Bruin 350. Thanks!
+RedEyeReviewer First off is the gas blowing into the air box coming from the crank breather tube? if so STOP RUNNING THE BIKE, you may be getting a gas/oil mixture from an overfull crank full of fuel.
Most likely that is being caused by a faulty fuel valve stop leading into the carb's bowl. That would cause fuel to constantly pour into the carb, into the cylinder and down inside of your crank.
If you have a stuck or bent valve, loss of compression would occur and your engine will not run.
Check your oil first, dont just check the dipstick, pull a sample out of the crank at the oil drain plug. If it is runny, milky or smells like fuel... you may have a lot of work ahead of you to clean that engine out and get your new carb working correctly.
+ruyguy8888 Nothing is coming out of the crank breather tube, just from the carb itself into the airbox. Yes, the oil does smell a little like gas.
+RedEyeReviewer Filling the airbox with fuel will do the same effect as filling the cylinder head. You may be getting fuel down inside your crank via the crank breather tube.
Im going to suggest you pull the bottom end of the car bowl off and check the condition of the float needle.
if you smell any sort of gas in your engines oil, you will run the risk of engine destruction due to proper lack of lubrication. Buy about 3 oil filters and some really cheap 10w30 or 10w40 (or whatever is on sale) and do a few oil changes to the ATV once you determine that your gas problem is resolved.
I see you greased the center roller that goes into the primary, does the belt not sit on that? I did not see you grease the rollers, is the primary you are working on stock? My shop manual says grease the weights?
+Rhino Rider I am working on an all-stock clutch yes. It I had placed a small skiff of grease around the outside of the rollers before placing them in there. Over greasing the slides and rollers have a very negative effect on the way the rollers throw the sheave out. It will act sluggish and you may get some residual grease fly out from the center of the pressure plate. All that required is a small amount .
As far as that center roller goes, it slides into a set of rubber seals inside the center of the Sheave assembly, Your belt, unless abnormally worn, or you have a shim washer in place to spread the sheave for a lower gear ratio, shouldn't really contact the center shaft roller of the primary.
These are just my methods of maintenance for this unit. Always consult your repair manual and follow instructions if you ave any doubt. Ill never claim to know more than a Yamaha research and development engineer, but with over 13,000kms doing the scheduled maintenance i plan out for my grizzly, the work speaks for itself.
thanks for the question, i hope i answered everything you are asking.
Yup, thanks for the response. MIne is stock as well. The problems I have were done by a Yamaha Tech thats why I'm doing my own now.
hi watching video & was hoping u could help with aproblem on 03 660 grizzly having trouble putting into reverse or park is there any adjutments for linkage
Ya there is a bar from the shifter to the back there is a nut at each end the front one is reverse threaded loosen both nuts and the rod will adjust if that rod is bent that will affect the shifting it did on mine I had to straighten it
Hey have any major problems with it I'm lookin at gettin the 550 can't find any problems with them
The 550's are strong reliable machines
ruyguy just a fyi if that shaft has play it does not indicate the crank bearing is bad. that shaft has a drum that goes over the wet clutch. Mine had to much play and I thought the same thing on a brand new rebuild. after removing the shaft called primary oil drum I noticed a one way bearing also a bearing inside the housing of the shaft. Mine is the bearing inside the shaft housing 40 bucks. most chances are that housing bearing or the one way bearing is bad. it does not attach to the crank so your information is incorrect.
I appreciate the update, thank you.
+ruyguy8888 no problem
Why didn't you put 90 g. Yamaha Ultramatic grease to the clutch?
valent0645 Ive never used that specialized grease. I don't use it because it follows the same principal of aftermarket parts. There are other, cheaper alternatives on the market that does the same thing. That Ultramatic grease is not needed. A good high quality chassis and bearing grease has the same lubricity properties that the Ultramatic grease does.
Awesome video! I learned a lot from it. Now if only I could keep my hands off of the big green nuts on the back of your bike I'd be ok! Lmao!
Why does yours wine so loud mine has no wine !
Is the bolt on the primary reverse threaded thanks
Terry, if i recall its standard thread.
@@ruyguy8888 ok thanks and the videos that u do r pretty good there isn't a lot of videos show that kind of stuff thanks again for the info
R all the weights the same
All my clutching weights are stock. Just the springs where replaced with the Dalton kit.
C'mon I can take it .
Show us that mouse.
right when i need to know how to get my clutch guard off ur have to throw some stupid thing in :(
Wow! Ok what was the final torque settings on primary and secondary units? Per manufacturer. . Also what did the belt measure out to on width wear tolerance? Per manufacturer specs. Also would yahama honnor a warrenty claim if good ole molley grease was used ? "cause cat uses it?" What if any spline wear was there on fan sheeve side to side? What did roller weights look like ? Did we check for flat spots 100% on roller weights ?? was seals checked or replaced on varieter center driver bushing? Was center driver bushing checked for seal wear groves on surface? Is there not a screen on intake of snorkel? Do you put neverseize or antiseize on your bikes lug nuts also ? LOL you probably do just watching this comedy video... oh well it was CHEAP ENTERTAINMENT...
www.google.com
23:30 Wrong again.