Motor Mounts - Page 7 - HCS Snowmobile Forums

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Old 03-25-2020, 09:33 AM   #61 (permalink)
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Current Sled(s): 17 Pro S Switchback 800
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I used 4 X PTO mounts last season as well and I noticed no additional vibrations. Iíve only put 750 miles on since installing them and they look perfect.


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Old 03-25-2020, 09:35 AM   #62 (permalink)
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Current Sled(s): 2020 Switchback Assault 850
Previous Sled(s): 2017 Assault, 2016 Axys Pro S LE Night Lightning, + 20 more!
Location: Pembroke, NH
Favorite Riding Area: Pittsburg, NH and Maine
19-20 Mileage:
18-19 Mileage: 3900
17-18 Mileage: 3300
16-17 Mileage: 3231
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Quote:
Originally Posted by brownbear View Post
Does anyone remember the Polaris Fusions if so , one of the fixes for the tremendous vibration that these sleds had was to remove one of the grips and fill the handlebar full of bb's , I know it sounds gimmicky but I have done this many times on Polaris sleds & Arctic Cats also it actually works pretty well and is virtually free , I have 2 2020 Indy xc's and when I replace the motor mounts with 4 of the PTO side mounts I will be doing this to both of them.
Don't waste your time with the BB's. Just get the Isovibe kit from Grip and Rip. I've used this for years, works amazing.

https://www.gripnripracing.com/index...roller=product
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Old 03-25-2020, 10:32 AM   #63 (permalink)
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Current Sled(s): 2018 XCR Switchback 800, 2016 Switchback 800
Previous Sled(s): 2008 Switchback 700, 1993 XCR 440
Location: Lakeville, MN
Favorite Riding Area: Northern MN
19-20 Mileage: 6535
18-19 Mileage: 4820
17-18 Mileage: 5280
16-17 Mileage: 3660
Age: 53
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This was the thread I couldn't find a couple weeks back, I was looking in the wrong forum!

Great info guys, I will link this to my thread in the Switchback forum.
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Old 03-25-2020, 12:08 PM   #64 (permalink)
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Current Sled(s): 17 Pro S Switchback 800
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Originally Posted by lennstang View Post
Don't waste your time with the BB's. Just get the Isovibe kit from Grip and Rip. I've used this for years, works amazing.

https://www.gripnripracing.com/index...roller=product

Hey Len
Youíve really found that the 800 has enough vibration to warrant this for trail riding or are you doing a lot of hard jumping/landing etc. Iíve never found the vibration to be much myself, but I only ride trails.


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Old 03-26-2020, 12:13 AM   #65 (permalink)
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Current Sled(s): 2017 SBA 800
Previous Sled(s): 2009 D8 & 2010 D8 & 2017 600 SP 144
Location: Just South of the Tac.
Favorite Riding Area: Arrowhead
19-20 Mileage: 1450
18-19 Mileage: 1175
17-18 Mileage: 1100
16-17 Mileage: 585
Riding Since: 1991
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So, not really interested in a vibration review, I need new mounts. As of now, I’m thinking of going back to full stock.
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Old 03-26-2020, 06:26 AM   #66 (permalink)
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Current Sled(s): 2015 AXYS Pr-S SB Ann 800, 2019 Indy 850.
Previous Sled(s): 2003 XCR 1100, 2000 XCR 800 turbo, 2005 Redline Revolt 800.
Location: SE Lower Michigan
Favorite Riding Area: Cadillac, Gaylord
19-20 Mileage: 715 so far
18-19 Mileage: 849
17-18 Mileage: 1280
16-17 Mileage: 1115
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I question replacing mounts every time you see some slop in them.

Polaris builds a lot of forward twist into the 800 setup. Way more than enough to allow the engine to self-align under load. This is apparently also to allow for wear.

I advise checking your alignment with the factory alignment tool. Then attach a ratchet strap around both clutches and tighten it as much as you can with the tool still installed. If it still indicates adequate alignment, leave it alone.

Adequate alignment is indicated when the tool is actually showing up to a .060" gap at the front and contact at the rear (Just the opposite of what the tool allows under no load).

Make sure to float secondary about .090-.120" outward from that point.
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Old 03-26-2020, 07:29 AM   #67 (permalink)
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When I did mine on my 18 assault 800 I did inner and outer. They seem to be holding up better than the first set. So the new part number being put into old inner mounts may have something to do with guys going through multiple sets .
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Old 03-26-2020, 07:50 AM   #68 (permalink)
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Current Sled(s): 2020 Switchback Assault 850
Previous Sled(s): 2017 Assault, 2016 Axys Pro S LE Night Lightning, + 20 more!
Location: Pembroke, NH
Favorite Riding Area: Pittsburg, NH and Maine
19-20 Mileage:
18-19 Mileage: 3900
17-18 Mileage: 3300
16-17 Mileage: 3231
Age: 54
Riding Since: 1969
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Quote:
Originally Posted by ReedZ View Post
Hey Len
Youíve really found that the 800 has enough vibration to warrant this for trail riding or are you doing a lot of hard jumping/landing etc. Iíve never found the vibration to be much myself, but I only ride trails.


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I'm 56...started using these around age 50. As you get older you start to notice the little things that cause fatigue at the end of the day. Vibration is one of them. I don't jump the sled...it's all about comfort. The Isovibe's work great. Even use them on my motorcycle.
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Old 03-26-2020, 08:48 AM   #69 (permalink)
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Join Date: Sep 2005
Posts: 15,159
Current Sled(s): 2015 AXYS Pr-S SB Ann 800, 2019 Indy 850.
Previous Sled(s): 2003 XCR 1100, 2000 XCR 800 turbo, 2005 Redline Revolt 800.
Location: SE Lower Michigan
Favorite Riding Area: Cadillac, Gaylord
19-20 Mileage: 715 so far
18-19 Mileage: 849
17-18 Mileage: 1280
16-17 Mileage: 1115
Riding Since: 1982
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Later today or tomorrow, I expect to develop a measuring tool based off my factory alignment bar. It will quickly show you what your real c-c is. And, how much the engine moves backwards under ratchet strap load.

I'll have pics to explain it.
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Old 03-26-2020, 12:16 PM   #70 (permalink)
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Quote:
Originally Posted by lennstang View Post
I'm 56...started using these around age 50. As you get older you start to notice the little things that cause fatigue at the end of the day. Vibration is one of them. I don't jump the sled...it's all about comfort. The Isovibe's work great. Even use them on my motorcycle.
I noticed the vibrations starting to get to my nerves (lol!) with my 2011 SBA. Got much better after swapping in wossner pistons though.
Fast forward to 2016 and my 2015 600 Pro-X SB.
Handlebars were buzzing so that my hands got cold constantly , and sometimes numb too. Very uncomfortable!
Bought a Doo 1200 as a backup/loaner which ended up as my main ride in '17 and 18.

I guess I shoulda ordered a couple sets of those isovibes to keep my hands in good shape. And I'm not 50. Yet.
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