EC250 Fuel Flow

[Scotty97]

Yesterday i had a problem with my 2001 EC250 cutting out.

The bike run perfect all day, but when i was making my way home, cruising down a trail with little throttle (low revs), the bike cut out as if it was running out of petrol.

I looked down and could see the fuel filter was empty.

I tapped the filter and managed to get revs back up, and filter started to fill up.

Once i got back home i pulled pipe off carb and fuel seemed to flow out OK.

I need to do some investigation but it seems like the filter is emptying at low revs and filling at high revs.

Has anyone ever seen this before??

[RBrider]

Originally Posted by Scotty97

Yesterday i had a problem with my 2001 EC250 cutting out.

The bike run perfect all day, but when i was making my way home, cruising down a trail with little throttle (low revs), the bike cut out as if it was running out of petrol.

I looked down and could see the fuel filter was empty.

I tapped the filter and managed to get revs back up, and filter started to fill up.

Once i got back home i pulled pipe off carb and fuel seemed to flow out OK.

I need to do some investigation but it seems like the filter is emptying at low revs and filling at high revs.

Has anyone ever seen this before??

Same thing happened to me on my '01 XC 200. I had a speck of trash in the vent line on the gas cap. Remove the rubber washer on the under side of gas gas and clean it out good, blow out the vent line too.

RB

[Scotty97]

Ok Thanks,

I'll check that later, i noticed that my vent line has a one way valve (inline) fitted, so i'l check that aswell

[swazi_matt]

I agree. Sounds like your breather is blocked and forming a vacuum in the tank

[eff]

Originally Posted by swazi_matt

I agree. Sounds like your breather is blocked and forming a vacuum in the tank

My first thought too.

[Scotty97]

Well took the cap and pipe off, and seems clear, what I did notice is that the end of breather pipe pushes on to a clip on the handle bars to stop it moving about.
This was full of dirt so could have been blocking end of breather pipe.

Does the breather pipe need a one way valve fitted??
There's one fitted but defiantly looks aftermarket (and cheap)