Kodiak 700 1.5mm shim mod???? - Yamaha Kodiak 700 Forum
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post #1 of 23 Old 12-28-2019, 03:00 PM Thread Starter
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Kodiak 700 1.5mm shim mod????

I put 1.5mm shims in my 700 this morning and was very disappointed in the results. It seems to have the opposite affect of what it is supposed to do. There is more lag in throttle response, rear tires hardly spin off the line. Any ideas why? Or what I may have done wrong? Pretty much followed the A YouTube video.
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post #2 of 23 Old 12-28-2019, 03:16 PM
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More then likely you dropped a weight or two out of their channels...... You need to hold pressure against the cam plate when installing the movable primary sheave assembly......Then verify full cam plate engagement before installing the nut and washer

The belt MUST be all the way down the primary and all the way up the secondary sheave when the installation is finished...

2009 Grizzly 550 Special Edition, Red Midnight Armour, EPS, 26"Pitbull Growler BG2.5 xor, on 12"polished alloy SE wheels with 1"spacers, Yamaha overfenders & windshield, Heat Demon grips & thumb warmers, 2500lbs Warn winch, two up seat / storage box, Moose rear bumper, Gold Plugs in diffs & engine, COOP45 machined sheave + 0.5mm shim (3.1:1), 18 gram weights, EPI Orange spring

Last edited by Vincent; 12-28-2019 at 03:20 PM.
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post #3 of 23 Old 12-28-2019, 07:13 PM Thread Starter
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Thanks Vincent. You were absolutely right. I had 2 weights out of position. Live and learn. Now that I have had that primary sheave apart it is quite evident why it has to be compressed during the whole process. This was the first time I have ever taken one of these apart. I watched a number of YouTube videos but don’t remember any of them mentioning that part, if they did I sure don’t remember it. Second tear down went much faster but having overfenders makes it more of a pain and time consuming. Took the 700 out for a short spin and am now happy with the results. Got my new 1” wheel spacers installed too. Looking forward to spring and taking it up North for real workout.
Thanks again.
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post #4 of 23 Old 12-29-2019, 12:56 AM
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Originally Posted by KodiakAfishyo View Post
Thanks Vincent. You were absolutely right. I had 2 weights out of position. Live and learn. Now that I have had that primary sheave apart it is quite evident why it has to be compressed during the whole process. This was the first time I have ever taken one of these apart. I watched a number of YouTube videos but donít remember any of them mentioning that part, if they did I sure donít remember it. Second tear down went much faster but having overfenders makes it more of a pain and time consuming. Took the 700 out for a short spin and am now happy with the results. Got my new 1Ē wheel spacers installed too. Looking forward to spring and taking it up North for real workout.
Thanks again.
You are not alone, I did the same when I did the shim mod. I too saw no mention of holding that plate in any video. I have great bottom end in life range, but hi range it was a slug. I contacted a guy that does cvt clutch work and machining locally, took my bike to him and as soon as the cover came off, he saw my belt position abs said I had flipped a weight.... Took it apart abs sure enough, one was laying sideways.... 300km I drove that way... Lol

Actually glad it happened, it made me pull the trigger on lighter weights & machined sheave.... What a beast now!
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2018 700 Kodiak EPS SE in stealthy matte black
26" forerunner maxx plus tires
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post #5 of 23 Old 12-29-2019, 09:48 PM
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So I am wondering about this mod, I work my machine pretty hard, plowing, pulling deer, pulling logs, moving boats, an such. Is this mod any good for my machine? What does this mod all take to do?

2018 Kodiak 700 Hunter Edition EPS, 2005 Suzuki Eiger 400.
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post #6 of 23 Old 12-29-2019, 10:30 PM Thread Starter
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https://m.youtube.com/watch?v=Z6mADgG8puQ
This YouTube link will show you how to do it. The results is better low end power and quick throttle response.
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post #7 of 23 Old 12-29-2019, 10:36 PM
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This mode does work well. It's works even better with a stiffer spring

2009 Grizzly 550 Special Edition, Red Midnight Armour, EPS, 26"Pitbull Growler BG2.5 xor, on 12"polished alloy SE wheels with 1"spacers, Yamaha overfenders & windshield, Heat Demon grips & thumb warmers, 2500lbs Warn winch, two up seat / storage box, Moose rear bumper, Gold Plugs in diffs & engine, COOP45 machined sheave + 0.5mm shim (3.1:1), 18 gram weights, EPI Orange spring
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post #8 of 23 Old 12-30-2019, 09:50 AM
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Originally Posted by KodiakAfishyo View Post
https://m.youtube.com/watch?v=Z6mADgG8puQ
This YouTube link will show you how to do it. The results is better low end power and quick throttle response.
If you think 1.5mm helps (and it does) can you imagine having the equivalent to 3mm of shims?

Stock is 2:45 :1 initial cvt ratio, with 1.5mm of shims you get about 2.75:1 initial cvt ratio, with my Coop45 sheave +0.5 shim I'm at 3.1:1 ratio.

2009 Grizzly 550 Special Edition, Red Midnight Armour, EPS, 26"Pitbull Growler BG2.5 xor, on 12"polished alloy SE wheels with 1"spacers, Yamaha overfenders & windshield, Heat Demon grips & thumb warmers, 2500lbs Warn winch, two up seat / storage box, Moose rear bumper, Gold Plugs in diffs & engine, COOP45 machined sheave + 0.5mm shim (3.1:1), 18 gram weights, EPI Orange spring

Last edited by Vincent; 12-30-2019 at 10:25 AM.
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post #9 of 23 Old 12-30-2019, 11:12 AM Thread Starter
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If you think 1.5mm helps (and it does) can you imagine having the equivalent to 3mm of shims?

Stock is 2:45 :1 initial cvt ratio, with 1.5mm of shims you get about 2.75:1 initial cvt ratio, with my Coop45 sheave +0.5 shim I'm at 3.1:1 ratio.
That's impressive. That must pull the front end up off the ground quite easily. Did you loose much top end? I don't care a whole lot about top end speed because I rarely go that fast, but it is fun getting there quick. Do you do any plowing with it? I may add a stiffer spring later, right now I don't want to get it to the point that it's to hard to finesse the throttle when plowing or hauling a trailer full of firewood. This is the only thing holding me back from doing more right now.
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post #10 of 23 Old 12-30-2019, 11:34 AM
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Originally Posted by KodiakAfishyo View Post
That's impressive. That must pull the front end up off the ground quite easily. Did you loose much top end? I don't care a whole lot about top end speed because I rarely go that fast, but it is fun getting there quick. Do you do any plowing with it? I may add a stiffer spring later, right now I don't want to get it to the point that it's to hard to finesse the throttle when plowing or hauling a trailer full of firewood. This is the only thing holding me back from doing more right now.
My bike does over 60 mph on gps... And remember I only have a 37 hp 550 with heavy Growlers tires . That's the beauty of a machined sheave. You get your cake and eat it too!!!! Way more of the line torque with basically no top speed loss.

I don't plow or do much work with this bike. But I do alot of slow technical riding and yes the extra low gearing is awesome !!! High range ends up between high and low, and Low is just ridiculous when compared to stock cvt . Low speed crawling was much improved on my quad. Again when compared to stock.

A stiffer spring will slow your CVT from shifting up. Keeping you in a lower gear longer. It also improves back shifting ( down shifting) . Your engine braking will be stronger. And it adds clamping force on the belt witch will prevent slipping in extreme duty situations

2009 Grizzly 550 Special Edition, Red Midnight Armour, EPS, 26"Pitbull Growler BG2.5 xor, on 12"polished alloy SE wheels with 1"spacers, Yamaha overfenders & windshield, Heat Demon grips & thumb warmers, 2500lbs Warn winch, two up seat / storage box, Moose rear bumper, Gold Plugs in diffs & engine, COOP45 machined sheave + 0.5mm shim (3.1:1), 18 gram weights, EPI Orange spring

Last edited by Vincent; 12-30-2019 at 10:38 PM.
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