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Polaris Ranger 570 Starts and dies

Randy Mullenberg
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MotoFish Apprentice

MotoFish

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I’ve heard they can stick.  Usually more so in winter.   But not likely your issue.  


Have you checked your valve clearance?   That will make hard starting in winter, but potentially make any vehicle run wrong.  

My Ranger 900 was recommended at 200 hrs and/or 2000 miles.   I checked them at 250 hrs and had 2 of the 8 valves barely out of spec.   Hard to start, little rough idle and would occasionally die when at idle but would go down trails fine once on the gas.   Once back in spec, runs perfect, starts perfectly and idles great again. 
 

sorry, started to talk about fuel pump   But you changed it, so I removed that comment   
 

check your valves?  How many hours, miles?  
 

just throwing out some ideas.  Hope they help.  
 

keep us posted 

Randy Mullenberg Rookie

Randy Mullenberg

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24 minutes ago, MotoFish said:

I’ve heard they can stick.  Usually more so in winter.   But not likely your issue.  


Have you checked your valve clearance?   That will make hard starting in winter, but potentially make any vehicle run wrong.  

My Ranger 900 was recommended at 200 hrs and/or 2000 miles.   I checked them at 250 hrs and had 2 of the 8 valves barely out of spec.   Hard to start, little rough idle and would occasionally die when at idle but would go down trails fine once on the gas.   Once back in spec, runs perfect, starts perfectly and idles great again. 
 

sorry, started to talk about fuel pump   But you changed it, so I removed that comment   
 

check your valves?  How many hours, miles?  
 

just throwing out some ideas.  Hope they help.  
 

keep us posted 

 

  • 2 weeks later...
Randy Mullenberg Rookie

Randy Mullenberg

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On 7/29/2023 at 11:01 AM, Randy Mullenberg said:

Checking valves next week. You’re about the third third person to mention that. Will give a report back. Thanks for the reply.

Ended up being a ground strap. Can’t believe I didn’t notice that?? Anyhow all systems are a go one again. Thanks for the input everyone.

MotoFish Apprentice

MotoFish

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Posted

Anyway you can post a picture of where this grounding strap is located?   I would love to give mine a once over to ensure it’s not getting loose.  
 

thanks for the update!   🤘

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