Fuel everywhere - Polaris ATV Forum
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post #1 of 8 (permalink) Old 01-10-2018, 04:34 AM Thread Starter
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Location: Lancashire england
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Fuel everywhere

Hi,I have a 330 ATV quad,2005 model.it was running, then last week it started loosing higher revs and popping,showing signs of the timing been out etc, I think it was the spark plug failing as it fired up and seemed to rev OK with a new plug.
But....this morning there was a strong smell of fuel, and it took a while to start. It started and ran for a few minutes I pushed in the choke then noticed a puddle of fuel underneath so turned it off. On investigating I found that the fuel was running like a stream from the left hand pipe on the air filter box. The mixture is fuel / oil and the pipe is coming from the engine with a white plastic tube half way down the pipe which I presume is either a filter or non return valve ? My fuel tank is completely empty so presume its got into the engine and through engine pressure is getting pumped into the air box, but what is causing this and how do I fix it ??? Cheers karl
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post #2 of 8 (permalink) Old 01-10-2018, 04:44 AM
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Check that the float valve isn't being obstructed by any sediment or build up on the needle that shuts off the flow of fuel to the carb.

2011 Sportsman® 800 EFI
GURU front brush guard
GURU rear brush guard
Polaris front lock n ride cargo box
Polaris rear rack extender
Warn RT 3.0 winch w/amsteel synthetic line
Viper aluminum haus fairlead
Polaris front spring adjusters
Ricochet a-arm guards
Ricochet full frame skid plate
ITP T-7 beadlock 14" w/OMF inner rim guards
Maxxis big horn 2.0 26x9 front
Maxxis big horn 2.0 26x11 rear
QSC clutch kit
EPI HD springs front n rear
ODI rogue 130mm grips
Ultraseal commercial grade tire sealant (front)
Highlifter tire sealant (rear)
CTEK 3300 battery maintainer
added 7 zerks
beefed up wiring harness
OGIO rear bag
ROTOPAX 1gal. + 2gal. gasoline can
Jccapri bushing kit
Kolpin Over Fenders
Rigid Industries E-Series 10" flood
Walker Evans struts
NGK Iridium's (2,500 miles on Champion's and they looked great!)
Odyssey Extreme battery PC545

2018 Sportsman® 570-T
2019 Aluma® A8818
2020 Outlander® 1000R XXC
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post #3 of 8 (permalink) Old 01-10-2018, 04:55 AM Thread Starter
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Thanks for your reply, at first I was thinking allsorts like valves, piston and or rings,but it still started and ran, didn't cross my mind that it could be a simple thin like a needle valve, but thinking about it, if the fuel isn't shut off then gravity will be flooding the carb overnight and leaking through the rings into the engine oil and pressure inside the engine will be pumping the excess fuel/oil back through the air box....thanks again for your reply, carb strip down it is then....cheers
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post #4 of 8 (permalink) Old 01-10-2018, 04:57 AM
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My first guess is that the o-ring that seals the float needle seat to the carb body has shrunk and fuel is by-passing the o-ring and overfilling the carb causing fuel to overflow the carb, seep past the rings and filling the crankcase with fuel. You might have a defective float needle.

Check the oil after running the engine for a minute - it will probably be overfull.

Change the oil, drain the air box, replace the air filter if necessary, start shutting the fuel off when not running and if the problem continues, have the carb serviced.
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post #5 of 8 (permalink) Old 01-10-2018, 05:07 AM
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Hey quick question for you, how popular is Eddie Hall over there on your side of the pond?

2011 Sportsman® 800 EFI
GURU front brush guard
GURU rear brush guard
Polaris front lock n ride cargo box
Polaris rear rack extender
Warn RT 3.0 winch w/amsteel synthetic line
Viper aluminum haus fairlead
Polaris front spring adjusters
Ricochet a-arm guards
Ricochet full frame skid plate
ITP T-7 beadlock 14" w/OMF inner rim guards
Maxxis big horn 2.0 26x9 front
Maxxis big horn 2.0 26x11 rear
QSC clutch kit
EPI HD springs front n rear
ODI rogue 130mm grips
Ultraseal commercial grade tire sealant (front)
Highlifter tire sealant (rear)
CTEK 3300 battery maintainer
added 7 zerks
beefed up wiring harness
OGIO rear bag
ROTOPAX 1gal. + 2gal. gasoline can
Jccapri bushing kit
Kolpin Over Fenders
Rigid Industries E-Series 10" flood
Walker Evans struts
NGK Iridium's (2,500 miles on Champion's and they looked great!)
Odyssey Extreme battery PC545

2018 Sportsman® 570-T
2019 Aluma® A8818
2020 Outlander® 1000R XXC
bp405 is offline  
post #6 of 8 (permalink) Old 01-10-2018, 05:13 AM Thread Starter
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Hi bp405, Eddie who ???? Lol
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post #7 of 8 (permalink) Old 01-10-2018, 05:19 AM Thread Starter
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Have just googled Eddie hall, do you mean the body builder ? Have to admit I've not heard of him before now....
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post #8 of 8 (permalink) Old 01-10-2018, 05:45 AM
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Eddie Hall won the 2017 world's strongest man contest. It's a pretty incredible accomplishment. As I can imagine most guys here in the states wouldn't know who Brian Shaw is and over the last several years he has won the WSM 4 times. But in some European countries the strength sports are more popular take Poland for example of what I gather 5 time champion Mariusz Pudzianowski and the Ukraines Zydrunas Savickas 3 time champion are quite the celebrity.

Thanks for the reply I was just curious as to the popularity of strongman in England.

2011 Sportsman® 800 EFI
GURU front brush guard
GURU rear brush guard
Polaris front lock n ride cargo box
Polaris rear rack extender
Warn RT 3.0 winch w/amsteel synthetic line
Viper aluminum haus fairlead
Polaris front spring adjusters
Ricochet a-arm guards
Ricochet full frame skid plate
ITP T-7 beadlock 14" w/OMF inner rim guards
Maxxis big horn 2.0 26x9 front
Maxxis big horn 2.0 26x11 rear
QSC clutch kit
EPI HD springs front n rear
ODI rogue 130mm grips
Ultraseal commercial grade tire sealant (front)
Highlifter tire sealant (rear)
CTEK 3300 battery maintainer
added 7 zerks
beefed up wiring harness
OGIO rear bag
ROTOPAX 1gal. + 2gal. gasoline can
Jccapri bushing kit
Kolpin Over Fenders
Rigid Industries E-Series 10" flood
Walker Evans struts
NGK Iridium's (2,500 miles on Champion's and they looked great!)
Odyssey Extreme battery PC545

2018 Sportsman® 570-T
2019 Aluma® A8818
2020 Outlander® 1000R XXC
bp405 is offline  
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