2001 sxr 600 - HCS Snowmobile Forums

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Old 01-09-2018, 04:18 PM   #1 (permalink)
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Default 2001 sxr 600

Hello everyone!
Decide last year to get into Snowmobiling. Bought a yamaha sxr 600 and took it to a dealer to have it fully serviced at the beginning of last year. Carbs cleaaned, new brake pads, some exhaust work and it ran great. This year, I'm having an issue. I'll do my best to describe. It starts and idles fine. After a 5 minute warmup, I take a 3 block ride to the trails and then start hitting it hard. Throttle is responsive and it goes like a bat out of hell. After about 20 minutes of riding it starts to choke at about 6000-6200 rpm (40-55 mph). I can crack the throttle and it just bogs more. I can slowly apply throttle and it still bogs. My first thought is that maybe the carbs need to be cleaned again, but since I've never owned a snowmobile, I wanted to see what others thought. Thank you.
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Old 01-09-2018, 06:29 PM   #2 (permalink)
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BTW: I have searched for a solution to this, on my own, but none of the symptoms seem to match mine. And I realize most of you are probably thinking "take it to a shop if you can't figure it out", but I'm trying to learn these motors (especially the carburetors).
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Old 01-09-2018, 09:15 PM   #3 (permalink)
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Loosen up the throttle cable just a bit and see what happens. No self diagnosis flashing on the display? Your rpms are above where the tors would activate.

From there, perhaps a chance the dealer didnt address the filter screens under the needle seats and they have debris restricting flow.

After that it could be electrical like a stator breaking down, wire rub through somewhere, or plug caps.
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Old 01-09-2018, 10:01 PM   #4 (permalink)
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Thanks for the advice. I'll start with the throttle cable.
The headlights do get very dim at idle, so I wonder if the stator is failing.
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Old 01-12-2018, 10:18 PM   #5 (permalink)
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I recommend cleaning the carbs every year. I personally would not chance it. It's easy to do.
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Old 01-08-2020, 01:28 PM   #6 (permalink)
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Exactly what I was thinking, I just had to do this on my SXR 600T.
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Old 01-10-2020, 05:46 AM   #7 (permalink)
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Quote:
Originally Posted by IQ600cf-i View Post
I recommend cleaning the carbs every year. I personally would not chance it. It's easy to do.
I'll do the same at first.
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Old 01-10-2020, 12:22 PM   #8 (permalink)
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Quote:
Originally Posted by wildtwins View Post
BTW: I have searched for a solution to this, on my own, but none of the symptoms seem to match mine. And I realize most of you are probably thinking "take it to a shop if you can't figure it out", but I'm trying to learn these motors (especially the carburetors).
Have you put in fresh gas? If not empty the tank (you can put the fuel in your car) and put in fresh gas.
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