2013 SB600 bogging out - HCS Snowmobile Forums

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Old 01-21-2020, 09:01 AM   #1 (permalink)
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Current Sled(s): 2013 Switchback Adventure
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Default 2013 SB600 bogging out

Before I start throwing parts at it, I wanted to get some ideas from you guys. Iím on a 2013 SB adventure 600.
About 15 miles into my ride the sled shuts off like I hit the stop button. It started right back up, so I thought I did. A few miles later, same thing, and just kept stalling out. I managed to limp it home, but it only ran 45 mph max and if I let off the gas would stall right away as if starved for fuel. BTW, at the second stall out I put new plugs in it.
Because no dealers stock ANYTHING anymore, I have a new fuel sock on order (Iíve never changed it). Any other ideas?
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Old 01-26-2020, 06:51 PM   #2 (permalink)
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Join Date: Mar 2019
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Current Sled(s): 2013 Switchback Adventure
Previous Sled(s): Fusion 600
Location: Waterford, MI
Favorite Riding Area: Northern Michigan
19-20 Mileage:
18-19 Mileage: 1000+
17-18 Mileage: 750
16-17 Mileage: 1000
Age: 59
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This weekend I replaced both the fuel sock and the filter. The sled will start up and idle but is only running on one cylinder. Both plugs are sparking, so it must be fuel related? Now I’m kind of at a loss. Carburetors I understand, not this new-fangled injection stuff. Any suggestions on what to do next? Trade it in? Keep riding my fusion? At least that old girl is bullet proof, otherwise I’d really be bumming this season.
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Old 01-26-2020, 07:17 PM   #3 (permalink)
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I would do a compression check to be sure everything is good with engine. If compression is good in each hole. I would think you have a plugged or bad injector or fuel pump not providing enough pressure?
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Old 01-26-2020, 08:16 PM   #4 (permalink)
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Current Sled(s): 2013 Switchback Adventure
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Favorite Riding Area: Northern Michigan
19-20 Mileage:
18-19 Mileage: 1000+
17-18 Mileage: 750
16-17 Mileage: 1000
Age: 59
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Thanks. Didn’t do a comp test yet. The way the problem came on all of a sudden makes me think its an injector or other related issue. Does gum-out work in these things or am I looking at a tear-down?
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Old 01-26-2020, 08:49 PM   #5 (permalink)
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Id compression test it....could also be a crank bearing.
How many miles on it?
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Old 01-27-2020, 02:43 AM   #6 (permalink)
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A crank seal or intake boot is possible. Any lights or codes on the dash?
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Old 01-27-2020, 09:10 AM   #7 (permalink)
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Current Sled(s): 2013 Switchback Adventure
Previous Sled(s): Fusion 600
Location: Waterford, MI
Favorite Riding Area: Northern Michigan
19-20 Mileage:
18-19 Mileage: 1000+
17-18 Mileage: 750
16-17 Mileage: 1000
Age: 59
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It has about 5k miles on it total, 1500 since it was professionally rebuilt. It’s been running perfectly up until it ‘stalled’. When that happened it flashed ‘det’ on the dash, but only for a minute. At that time, it would re-start but not idle or go over 45mph. After fresh plugs and a new sock and filter, it will start and idle ‘fine’ but not really, since It appears that only one cylinder is getting fuel. No lights or codes are currently showing.

I will check the compression and seals, but I’m sure if this thing had carbs on it, I could just take it off and blast it with some gum-out and everything would be fine. Is there an equivalent cleaning procedure for injectors? Or is that a trip to the dealer? This CGI crap or whatever it is, is all Greek too me. Too many darn computers!! Now if you’ll excuse me - I have to chase some kids off my lawn so I can yell at the clouds.
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Old 01-27-2020, 11:17 AM   #8 (permalink)
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Check closely the wiring that runs to the injectors. The cable ties sometimes ware though causing a short. Hard to see, so inspect carefully.
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Old 01-27-2020, 11:32 AM   #9 (permalink)
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i was chasing a very similar issue and it was my injectors. I would bring it to the dealer like i did and ask for a digital wrench diagnosis. There should be codes. Actually just waiting for my injectors to come in today so i can replace them. 5800 miles on my sled with 1100 of that on my rebuild
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Old 01-27-2020, 12:25 PM   #10 (permalink)
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Join Date: Mar 2019
Posts: 29
Current Sled(s): 2013 Switchback Adventure
Previous Sled(s): Fusion 600
Location: Waterford, MI
Favorite Riding Area: Northern Michigan
19-20 Mileage:
18-19 Mileage: 1000+
17-18 Mileage: 750
16-17 Mileage: 1000
Age: 59
Riding Since: 1971
Default

If I understand it, the injectors aren't available individually? It looks like they come as a set with the harness. Polaris part #4013394. New they are $339. but I see used ones on ebay for less than half that. Would it make sense to pick up a set on ebay? How can I know if they would be good? Can they be tested/cleaned while off the sled? Sorry for the stupid questions, this is my first problem with fuel injection.
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