2017 arctic cat ZR9000 stock clutch engagement RPM - HCS Snowmobile Forums

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Old 01-06-2018, 10:48 AM   #1 (permalink)
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Default 2017 arctic cat ZR9000 stock clutch engagement RPM

My first four stroke snowmobile. Road it on the trails last weekend and was engaging around 4400rpm is this what everyone else is seeing? Seemed a little aggressive on the trails.
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Old 01-06-2018, 11:00 AM   #2 (permalink)
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My first four stroke snowmobile. Road it on the trails last weekend and was engaging around 4400rpm is this what everyone else is seeing? Seemed a little aggressive on the trails.
I'm sure there are many suggestions for changing clutch engagement that will be offered, but with my Z1 I had the yellow/white spring in it stock and my clutch engaged at about 4000 rpm, being a 4 stroke and making torque down low, I figured I would just switch to the gold spring. 0646-433 My engagement is now down to about 2700 rpm and I don't bounce off the rev limiter in powder. It performs much better now.
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Old 01-06-2018, 11:07 AM   #3 (permalink)
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Seems a bit high. Sticking maybe.

You could put a different spring in it. Lower initial same finish.
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Old 01-06-2018, 11:15 AM   #4 (permalink)
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The stock spring is 120/285 l take it I just want to lower the the first number. Thanks for the input.
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Old 01-06-2018, 11:49 AM   #5 (permalink)
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How many miles on it? The buttons on the new clutches , some are real tight at first. Iíd try to ride it if you donít have many miles on it. Maybe they will loosen up some
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Old 01-06-2018, 01:12 PM   #6 (permalink)
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How many miles on it? The buttons on the new clutches , some are real tight at first. Iíd try to ride it if you donít have many miles on it. Maybe they will loosen up some
I only have a 100miles on it so far. Thanks for the info.
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Old 01-06-2018, 01:24 PM   #7 (permalink)
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I only have a 100miles on it so far. Thanks for the info.
it takes a while to get the buttons to free up some. Give it some time then see what happens
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Old 01-06-2018, 01:26 PM   #8 (permalink)
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it takes a while to get the buttons to free up some. Give it some time then see what happens
Thanks I'll do that.
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Old 01-06-2018, 01:44 PM   #9 (permalink)
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Originally Posted by Justsnow123 View Post
My first four stroke snowmobile. Road it on the trails last weekend and was engaging around 4400rpm is this what everyone else is seeing? Seemed a little aggressive on the trails.
I've got about 60 miles on mine and I'm kinda surprised of the higher engagement as well. Waiting to put more miles on to see how it breaks in. It's eventually going to get tuned and clutched, but want to play with it stock for a little bit.
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Old 01-06-2018, 02:24 PM   #10 (permalink)
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4400 is where the 17 turbos came in at. I installed Ron Ward's clutch kit and it dropped down to around 3000 and was a vast improvement in the clutching. After 2000 miles my buttons were still tight. I pulled the clutch apart and sanded the backside of the buttons down until they were still making contact but the clutch was buttery smooth. Of course within a week of doing it they recalled the clutch so I did it again with the new one which was even tighter to begin with.
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