2012 Rush & Pro-R Items to Check - Problems - Page 14 - HCS Snowmobile Forums

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Old 12-25-2012, 05:50 AM   #131 (permalink)
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I been having the same issue, my TPS is always going out of wack.Had it to the dealer, I have it back now, lost alot of top end speed(19mph) and it's bogging in the deep drifts now. How big of an issues has this been?

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Old 12-28-2012, 02:47 PM   #132 (permalink)
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I to also have a harsh vibration between 2000-3000 rpm... it smooths out after 3000 rpm and runs smooth when clutch is engaged. Vibration actually vibrates the ground around sled ...2012 pro r 800 switchback....
Hi, I am brand new to the board. Currently breaking-in my 12 Rush 800 121 base model and also noticed this vibration just before clutch fully engages - not during idle, or after sled is rolling, but just before it begins to engage the secondary. Does this have to do with belt deflection?
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Old 12-29-2012, 01:42 AM   #133 (permalink)
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Hi, I am brand new to the board. Currently breaking-in my 12 Rush 800 121 base model and also noticed this vibration just before clutch fully engages - not during idle, or after sled is rolling, but just before it begins to engage the secondary. Does this have to do with belt deflection?
I ran the same post a year ago they claim it's just being an 800 but my Doo was not like that.
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Old 12-29-2012, 10:44 PM   #134 (permalink)
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Question.... recently just got back from my first trip on my 2012 800 Pro-R SB. Added the recommended oil to the first tank of gas, after that we put on 425 miles and avg 12 mpg's and only used 1.75 qts of oil. If my calculations are right that comes in around 80:1 on oil consumption. I reviewed the owners manual and could not find a recommended mix oil to gas for the sled. I have heard both sides that these sleds use very little oil, and others saying you need to take it in and have oil pump set at 50:1. Any one else have similar oil usage or recommendations? Just don't want to cook an engine even if it is under warranty.
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Old 12-30-2012, 11:06 PM   #135 (permalink)
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Question.... recently just got back from my first trip on my 2012 800 Pro-R SB. Added the recommended oil to the first tank of gas, after that we put on 425 miles and avg 12 mpg's and only used 1.75 qts of oil. If my calculations are right that comes in around 80:1 on oil consumption. I reviewed the owners manual and could not find a recommended mix oil to gas for the sled. I have heard both sides that these sleds use very little oil, and others saying you need to take it in and have oil pump set at 50:1. Any one else have similar oil usage or recommendations? Just don't want to cook an engine even if it is under warranty.
Yes,get the oil pump done ASAP, Way to lean, did my own and now it is using oil at 50:1 and performs flawlessly with 1600 miles so far,
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Old 12-31-2012, 12:22 AM   #136 (permalink)
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Yes,get the oil pump done ASAP, Way to lean, did my own and now it is using oil at 50:1 and performs flawlessly with 1600 miles so far,
Thanks how hard and how long did it take to do this on your own?
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Old 12-31-2012, 09:27 AM   #137 (permalink)
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Thanks how hard and how long did it take to do this on your own?
Takes about 1.5 hrs (less now that I know how to do it) as the Air Box Assembly is the biggest pain and its the hard part, also take your secondary off to undo the Air Box Boots from the Carbs, this will allow easy access to the pump which will show you the notch's to align together and also hold the jam nut assembly before you try to undo the jam nut to adjust pump....I had a Air bubble near the oil tank and its now gone also...
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Old 12-31-2012, 02:49 PM   #138 (permalink)
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Emailed the dealer on this as well and here was their response.

The new 600 and 800 engines sip oil. Around 100:1.
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Old 12-31-2012, 03:33 PM   #139 (permalink)
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Dont forget oil filter and valves cleaned 1500 miles..factory will void warranty..my 800 was bogging..delear never told me..got lucky didnt blow
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Old 12-31-2012, 03:37 PM   #140 (permalink)
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Dont forget oil filter and valves cleaned 1500 miles..factory will void warranty..my 800 was bogging..delear never told me..got lucky didnt blow

Would you say best practices would include at end/beginning of each season replace fuel and oil filters?
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