i have a 2004 kfx 700 v force that cuts out need help! - ATV Forums at ATV Rider Magazine ATV Rider

i have a 2004 kfx 700 v force that cuts out need help!

  
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i have a 2004 kfx 700 v force that cuts out need help!

 
blahnik18 blahnik18
New User | Posts: 6 | Joined: 10/09
Posted: 10/03/09
04:58 PM

i recently went up north riding and when i came back i was riding on my farm and when i hit about 3/4 throttle or 35mph it cuts out and wont go any faster. i was wondering wut can cause this to happen.  
2008 polaris sportmans 500 efi

 
FmxLevi FmxLevi
User | Posts: 240 | Joined: 11/08
Posted: 10/03/09
08:16 PM

the fuel/air mixture is wrong. its getting too much air and not enough gas, so it is basically starving at that point. you need to adjust the screw outward a turn or two. do slow incriments, let it run, test it. if no better, do it again until its fixed.  
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2005 honda trx450 golden west graphics, hot cam, high compression piston, hmf exhaust, nerf bars,works shocks, golden west seat cover, one industries bars, and more

 
blahnik18 blahnik18
New User | Posts: 6 | Joined: 10/09
Posted: 10/04/09
11:04 AM

wut happen is i was riding it and it started to smoke so i pulled the head of and inpsected piston and cylinder. replaced the head gasket and adjusted the valves.i ran the motor and when it in neutral it fine but when in gear it cuts out.  
2008 polaris sportmans 500 efi

 
blahnik18 blahnik18
New User | Posts: 6 | Joined: 10/09
Posted: 10/04/09
11:05 AM

IT HAS A BAD  ticking noise now to but it sound like it ciming form the breather  
2008 polaris sportmans 500 efi

 
FmxLevi FmxLevi
User | Posts: 240 | Joined: 11/08
Posted: 10/04/09
04:11 PM

well if its cutting out when you put it into hear its either getting way too much gas at one time or its getting all air and killing. as far as the ticking, im not sure, i wouldnt think a valve pusher is bad since you were just in there, it may be the timing chain if you forgot to but the tensioner back in, or just not tight enough. i guess that one you will have to just trial and error with.  
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2005 honda trx450 golden west graphics, hot cam, high compression piston, hmf exhaust, nerf bars,works shocks, golden west seat cover, one industries bars, and more

 
FmxLevi FmxLevi
User | Posts: 240 | Joined: 11/08
Posted: 10/04/09
04:14 PM

also look at the clutch, it might be killing because the clutch is not fully engaging.  
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2005 honda trx450 golden west graphics, hot cam, high compression piston, hmf exhaust, nerf bars,works shocks, golden west seat cover, one industries bars, and more

 
blahnik18 blahnik18
New User | Posts: 6 | Joined: 10/09
Posted: 10/04/09
05:06 PM

it a belt drive  
2008 polaris sportmans 500 efi

 
FmxLevi FmxLevi
User | Posts: 240 | Joined: 11/08
Posted: 10/04/09
07:11 PM

lol oh! i thought we were talking about a kfx 700.  
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2005 honda trx450 golden west graphics, hot cam, high compression piston, hmf exhaust, nerf bars,works shocks, golden west seat cover, one industries bars, and more

 
FmxLevi FmxLevi
User | Posts: 240 | Joined: 11/08
Posted: 10/04/09
07:11 PM

when it comes to a sportsman i am no help, i have never been inside of one.  
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2005 honda trx450 golden west graphics, hot cam, high compression piston, hmf exhaust, nerf bars,works shocks, golden west seat cover, one industries bars, and more

 
blahnik18 blahnik18
New User | Posts: 6 | Joined: 10/09
Posted: 10/05/09
05:18 PM

no we are talking but the 700. i got it recently tho  
2008 polaris sportmans 500 efi

 
blahnik18 blahnik18
New User | Posts: 6 | Joined: 10/09
Posted: 10/22/09
06:54 PM

well if final got it figured out i pulled the carbs apart and cleaned them replaced the plug and redid the vavle adjutment and it didnt cut out anymore thnx   for the help  
2008 polaris sportmans 500 efi

 

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