Bog/backfire . Won't rev over 5500 rpm - Page 2 - HCS Snowmobile Forums


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Old 01-11-2017, 09:23 AM   #11 (permalink)
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Maybe check fuel filter.Some of these sleds seem to be touchy to dirty fuel filters.
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Old 01-11-2017, 10:38 AM   #12 (permalink)
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Mine did this check oxygen sensor, mine was carboned up I cleaned and it was better, replaced all good now. Just saying!
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Old 01-11-2017, 11:37 AM   #13 (permalink)
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Ok this gIves me a couple of more things to check now. I had went on 2 rides this winter since it was on storage and then this happened. Maybe 150 kms on it before the problem started. It's a 2013 with 17000 miles.
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Old 01-11-2017, 12:44 PM   #14 (permalink)
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Quote:
Originally Posted by Hodgric View Post
Ok this gIves me a couple of more things to check now. I had went on 2 rides this winter since it was on storage and then this happened. Maybe 150 kms on it before the problem started. It's a 2013 with 17000 miles.
17,000 miles?
Have the valves been checked?
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Old 01-11-2017, 01:27 PM   #15 (permalink)
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WOW outstanding wish I had snow every year to get those miles.
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Old 01-11-2017, 01:55 PM   #16 (permalink)
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Yes , vales have been shimmed twice actually....
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Old 01-14-2017, 12:29 PM   #17 (permalink)
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Still trying to figure this out. No oil in boost tubes. All vacuum lines look intact, including that regulator line. I'll be changing the fuel filter today. Plugs look ok too. Any other ideas? I ordered a new 02 sensor, was only 50 bucks so will try that too.
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Old 01-14-2017, 02:28 PM   #18 (permalink)
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Did you check the impeller on your turbo inlet?
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Old 01-15-2017, 04:20 PM   #19 (permalink)
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Yes impeller looked fine. Although not sure what I'm looking for?
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Old 01-15-2017, 04:25 PM   #20 (permalink)
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Quote:
Originally Posted by Hodgric View Post
Still trying to figure this out. No oil in boost tubes. All vacuum lines look intact, including that regulator line. I'll be changing the fuel filter today. Plugs look ok too. Any other ideas? I ordered a new 02 sensor, was only 50 bucks so will try that too.
Don't go with "looks ok" on the plugs. Change them

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