Bike cutting out at high speed

[DrunkenMistake]

What sort of bike are you gonna get for the Corolla? If you go with that idea I'm riding infront, there will be shit falling off it all over the place

My Hyo.

Aye, so where is the bloody tank vent? I should bring it over, unless you're in barmy Palmy today?

There should be an overflow hose, this will act as a breather too, or if you open the cam of your tank there will be a small hole on the outside of the filler hole

[ducatilover]

What sort of bike are you gonna get for the Corolla? If you go with that idea I'm riding infront, there will be shit falling off it all over the place

Aye, so where is the bloody tank vent? I should bring it over, unless you're in barmy Palmy today?

Yeah I bring it close to the redline in all gears on the way to work, it's been OK.

Yep will see how it goes... Yeah sure, there will be a 3 grand deposit though

I'd ride a GN250 at this rate there is an older model CBR600 in Palmy that I'm tempted to look over.
I'll sell the wondrous 'Rolla

I should be home, throw me a text if you're heading over. Really should do some more work on the bike.

It's not an air leak/jetting problem if you are able to wring the shit out of it now.

Cheque's in the male.

[cbfb]

My Hyo.

There should be an overflow hose, this will act as a breather too, or if you open the cam of your tank there will be a small hole on the outside of the filler hole

I've got a Galant I'd swap for it, goes well , had a dodgy head gasket replacement, doesn't use any oil (coz it's all in the radiator) and someone lost a bolt that holds something important in place

Yep, there's a small hole on the outside of the cap that runs into an overflow hose. Have squirted that with compressed air, all good. But I can't see how that lets the tank breathe, as it's outside the cap seal? Feel free to tell me if I'm being thick.

I'd ride a GN250 at this rate there is an older model CBR600 in Palmy that I'm tempted to look over.
I'll sell the wondrous 'Rolla

I should be home, throw me a text if you're heading over. Really should do some more work on the bike.

It's not an air leak/jetting problem if you are able to wring the shit out of it now.

Cheque's in the male.

DO IT... If you would rather have the rust bucket than a CBR600 you need your head testing ... send me some pics, I might go buy it myself

Might pop over after work, will see what time I get off. Like going home via the track though

[ducatilover]

I've got a Galant I'd swap for it, goes well , had a dodgy head gasket replacement, doesn't use any oil (coz it's all in the radiator) and someone lost a bolt that holds something important in place

It was an extra bolt one of those unneeded things, probably a head bolt or a very grooved gudgeon pin.

DO IT... If you would rather have the rust bucket than a CBR600 you need your head testing ... send me some pics, I might go buy it myself

Might pop over after work, will see what time I get off. Like going home via the track though

Will make the Corolla nice and rust free, then sell it.
Just make the ride home extra long? That's what I'd do, then I'd crash.
You don't have to crash though.

[DrunkenMistake]

Just punch a hole in the top of the tank with a screw driver.
Problem fixed.


And my Hyo isnt worth a Rolla .. I mean cmon its a Hyo! haha

[cbfb]

Lord, how I've missed KB

It was an extra bolt one of those unneeded things, probably a head bolt or a very grooved gudgeon pin.

Will make the Corolla nice and rust free, then sell it.
Just make the ride home extra long? That's what I'd do, then I'd crash.
You don't have to crash though.

Will do if it plays up again - for now though you really should get back in the shed or get that CBR.

It's like a different bike now, have to watch myself as it's considerably quicker...

Just punch a hole in the top of the tank with a screw driver.
Problem fixed.

And my Hyo isnt worth a Rolla .. I mean cmon its a Hyo! haha

Nah, with my insane lean angles the gas would piss out.

Oh wait, I'm mistaking myself for someone that can actually ride

[FJRider]

I usually get Caltex gas... Funny you should say that cause the shop filled it with BP and it's gone OK since then... maybe I should try using BP from now on... actually i boycotted BP so it will have to be Shell. Might be the way to go.

Actually ... the problem may even BE a gas station ... Over the (many) years I have had issues with water in the station tanks ... picking it up (along with other shit) when the tanks are low.

[darkwolf]

In theory, the bike should shit fart and piss itself once the tank pressurises regardless of speed. What it may mean is that the breather hose or one way valve is only slightly open. Theory being:
Travelling at 60KM/H in top gear might require 10% flow. Tank can breath 20%. 100KM/H may require 30% flow. After a period of time, bike dies because it can't get fuel (pressurises).

Is it possible to ride without the fuel cap on? Probably not a great idea safety wise etc but might answer your question.

[robinm]

If you are fueling up at the caltex in your ( and my) home town, that MAY be your problem. I started fuelling up in Ashhurst when the local was closed and noticed my car seemed to run better and got better milage. I have heard the same thing from a few locals now.

[cbfb]

In theory, the bike should shit fart and piss itself once the tank pressurises regardless of speed. What it may mean is that the breather hose or one way valve is only slightly open. Theory being:
Travelling at 60KM/H in top gear might require 10% flow. Tank can breath 20%. 100KM/H may require 30% flow. After a period of time, bike dies because it can't get fuel (pressurises).

Is it possible to ride without the fuel cap on? Probably not a great idea safety wise etc but might answer your question.

That sounds similar to what I was thinking... but no I'm not keen on riding without the fuel cap closed, the commute is pretty twisty so I would end up with a crotch full of fuel.

I see your point though, if it does it again I might see if I can bung it somehow but leave a hole, then take it for a blat down a straight. Unfortunately it's very inconsistent.

If you are fueling up at the caltex in your ( and my) home town, that MAY be your problem. I started fuelling up in Ashhurst when the local was closed and noticed my car seemed to run better and got better milage. I have heard the same thing from a few locals now.

Well I need to fill up tonight so I'll stick some dodgy Woodville gas in and see what happens! Maybe it's just like the water round here!

[Fast Eddie]

didnt really read any of the other comments, just butting in sorry.

I had a similar problem on my cbr250r, it would cut out at open road speeds as it wasnt getting enough fuel, it would use up whats in the carb and then die, you leave it to sit for a while until gravity does its thing and it would go again. Bike shop never fixed the prob. I had the tap etc all cleaned out. In the end I fixed it by swapping it with another tank off a running bike. So yea. it was something to do with my tank despite being cleaned etc, must be something in the fuel tap, the actual pipes in the tank, or maybe like i saw someone mention, pressure problem? not sure.

also how rusty does it look inside ur tank? I think mine was so so. It was a very long time ago tho.

[cbfb]

didnt really read any of the other comments, just butting in sorry.

I had a similar problem on my cbr250r, it would cut out at open road speeds as it wasnt getting enough fuel, it would use up whats in the carb and then die, you leave it to sit for a while until gravity does its thing and it would go again. Bike shop never fixed the prob. I had the tap etc all cleaned out. In the end I fixed it by swapping it with another tank off a running bike. So yea. it was something to do with my tank despite being cleaned etc, must be something in the fuel tap, the actual pipes in the tank, or maybe like i saw someone mention, pressure problem? not sure.

also how rusty does it look inside ur tank? I think mine was so so. It was a very long time ago tho.

Tank is pretty clean. Tap is spotless, fuel line is brand new. Only thing I can think is the cap.

Not done it for a few weeks so hoping the problem has gone away...

[SMOKEU]

Where do you get your fuel? This one time, when I fuelled up at Gull, my Hornet 250 run like puss-nuts. Coughed and spluttered and cut out.

Stopped using it and bike became normal again.

Are you sure the Gull fuel didn't have ethanol in it?