Friction type noise - Yamaha Grizzly ATV Forum
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post #1 of 7 Old 04-12-2019, 10:53 PM Thread Starter
 
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Friction type noise

Hi everyone. When I started my Grizzly 700 today there was a friction type of noise from what it sounds like near the primary. The machine has never been immersed that deep and Ive never messed with it prior. Also it only has about 400 miles. The service dept. at the dealer says remove the primary cover and look for debris (maybe a mouse). Any suggestions would be greatly appreciated. BTW, great forum (I just joined today).
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post #2 of 7 Old 04-13-2019, 10:52 PM Thread Starter
 
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Another forum thread says to check the clutch cover after removing and inspect the area. Another says something about a single bearing type of problem. Any thoughts out there?
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post #3 of 7 Old 04-14-2019, 08:05 AM
 
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No way of knowing what's wrong until you open her up and do a thorough inspection

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post #4 of 7 Old 04-14-2019, 10:50 AM
 
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Welcome from Colorado.
The cover is fairly easy to remove for inspection, other than there being several bolts and you have to remove the running board for easier access both removing and installing.
Once you have the cover off, before removing the primary cage, turn the primary by hand. Clock-wise the one-way should lock the pulley to the crank, and counter clock-wise the pulley should turn easily. See what you have.
You can remove the cage easily, there are 4 bolts. 2 long and 2 short, so keep track of what comes from where for installation, then count your pulley ratio and let us know what you have.
The ratio is important, and on most 700's is around 2.5:1 stock. Count it to the 1/24 of a primary turn for accuracy. There are 24 veins on the primary.
You say it hasn't been that deep, but there may be a C.V.T. vent tube not sealing properly.
Let us know what you find.
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post #5 of 7 Old 06-03-2019, 11:31 PM Thread Starter
 
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Oops? I might have diagnosed the noise in my CVT primary area. On my last oil change I used car oil, albeit premium, instead of ATV oil. There seems to be a general consensus out there that this is a no-no.
Questions include:

1. Have I damaged the machine although Ive put less than a mile on it?

2. What parts have I likely damaged?

3. What are the telltale visual signs of damaged parts?

4. How big of a job this will be?

5. How much will I be looking at to have to fork over to the Yamaha dealer?

6. Recommended oil brands.


Thanks for any thoughts!

Mike
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post #6 of 7 Old 06-04-2019, 01:24 AM
 
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You want to look for a JASO MA spec oil. The problem with a lot of oils for cars is that they have friction modifiers that cause the wet clutch shoes to slip and burn. Dump the oil, refill with JASO spec, drive around a bit, dump it and refill again. Lots of people have made this mistake and most haven’t ruined the wet clutch as a result. Unless you were plowing a lot of wet snow in high range for that 1 mile of use, I think you’ll be fine. Personally I like Shell Rotella

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post #7 of 7 Old 06-04-2019, 06:52 AM
 
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Garage
X2. Just look at the back side label of the oil, Rotella, Mobile 1 4T, Motul, Amsoil, Yamaha, etc, etc.
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