Utility ATV repair and maintenance & Troubleshooting Place your Utility ATV Repair and Maintenance questions/thoughts here... *not performance*

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Old 08-20-2012, 09:45 PM   #1
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Backfire & noise

Hello people , I have a few questions please . My nephew sank his '10 mud pro 700 , and it cut off under water . We are familiar with other brands . This one has me a little confused . O K so it has been flushed to the point the oil is clear,, but now after acceleration it backfires. And there is noise coming from where the drive belt is . It actually sounds like there is dirt on or around the belt . Help,,,suggestions ??? Please
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Old 08-20-2012, 10:04 PM   #2
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ATV: 07 500 auto 13 700 XT trv
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Take the cover off and have a look it's a 10minute job. Chances are it's full of mud. Did you clean the entire intake , snorkel and filter? Check all your fuses first start with the simple stuff. Put in a new plug!! Make sure the battery is fully charged. Is it throwing any codes?
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Dynojet/142m/45p/3rd/3turns--Clipped and drilled--Unifilter--Easy adjust PMS--L.C.V. mod--AC Swaybar--Exhaust mod--2"Snorkels--Sanny shock bushings-- Airdam stage 1--PSC phase 2--21/ 23gr rollers--Dalton yellow spring--.7mm shim--Sanny Steerlites--RTR Flex Bracket--2 up seat / pegs--Tach--AC handguards--28" Outlaw mst's--Skull tailight--Skull shifter--Self Resetting Breakers--1" Wheel spacers--Customcncparts Steering Damper--AC deluxe handwarmers--6000k HID'S hi/lo--AC Deluxe Bumpers--Inline Fuel Filter-- O2 sensor \AFR guage--Black Magic Full Stainless Exhaust System--Wireless Winch Remote--29.5 Outlaws--Fox Podium X Rear Shocks--
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No Boost No Bottle
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Old 08-20-2012, 10:05 PM   #3
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Seems like its leaning out under decel. Clean the carb and check back. Btw did you clean the belt area out?
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Old 08-20-2012, 10:09 PM   #4
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10 700 mp is Efi is it not?
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Dynojet/142m/45p/3rd/3turns--Clipped and drilled--Unifilter--Easy adjust PMS--L.C.V. mod--AC Swaybar--Exhaust mod--2"Snorkels--Sanny shock bushings-- Airdam stage 1--PSC phase 2--21/ 23gr rollers--Dalton yellow spring--.7mm shim--Sanny Steerlites--RTR Flex Bracket--2 up seat / pegs--Tach--AC handguards--28" Outlaw mst's--Skull tailight--Skull shifter--Self Resetting Breakers--1" Wheel spacers--Customcncparts Steering Damper--AC deluxe handwarmers--6000k HID'S hi/lo--AC Deluxe Bumpers--Inline Fuel Filter-- O2 sensor \AFR guage--Black Magic Full Stainless Exhaust System--Wireless Winch Remote--29.5 Outlaws--Fox Podium X Rear Shocks--
2013 700 XT trv eps stock



It's mind over matter,If you don't mind,
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No Boost No Bottle
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Old 08-20-2012, 10:10 PM   #5
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no codes, and no we didn't clean the whole snorkle . Will go back/restart and clean everything completely and go ahead and put in new plug. Oh it's EFI. Thanx for the replies will post after re- doing things.
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Old 08-20-2012, 10:14 PM   #6
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Did you check the airbox, filter and throttle body for dirt and water? If not you need to clean real good cause you could still have some water and dirt in it which will cause it t run bad. As for the belt housing you need to take the cover off and clean the inside of it good also.

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Old 08-20-2012, 10:39 PM   #7
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Sled: 2010 Crossfire 800
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My 10 700 MP went through the same thing pretty much. My was spitting and backfiring and I went through whole machine and it turned out the bolt holding the battery terminal was loose. It coincidently happened right after I flooded mine too. Definitely take the belt cover off and clean it like you were going to eat off it lol. I ended up throwing loctite blue on both the terminal bolts to hold them in, has anyone else had this problem?

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