Bike running like it's running out of fuel

[Misc]

Hopefully BCF can help on this one too,

I made a thread somewhere down the forum about thinking my bike was restricted & was told to check the carbs for washers, so i did. I removed the airbox & the clamps but found no washers so put it all back together.

Went out for a ride & straight away the bike felt blocked & hesitant like it was running out of fuel (fuel was topped up) pulled over & changed the petrol tap settings & it ran better, not 100% but better nonetheless, went like this for about 2 miles & on the way home i had to pull over 4 or 5 times as the bike would rumble, lose power & eventually conk out. I waited a few minutes & it started again & seemed to run 'smoothly' for the next several hundred metres or so until it did it again. I now know this was the float or something filling up which explains why it started after a few minutes.

I moved both the vacuum & petrol hoses about & went for another ride, it started out feeling blocked & hesitant then after a minute or so the bike seemed back to normal, 15 minutes or so later it was back to the 'crappy' feel.

Any ideas? I haven't touched any settings or adjustments. Just removed air box & removed petrol tank/hoses. Also adjusted the tap settings several times.

Bike is a '96 bandit 600.

Cheers,

[oldbiker]

sounds like fuel starvation,
check for crap or water in the tank,
check that the fuel lines are clear,
check the vacuum pipe is clear,
check for crap in the float bowl,
check for crap in the jets and air ways (blow through with compressed air,
after all this check the float valve is clear and the float height is correct.

all these checks should take about an hour or so.

to check the fuel tap is working as it should, connect a litt bottle of fuel directly to the carbs via a small pipe.
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It`s all powerfull white mans magic
https://i897.photobucket.com/albums/ac178/tzrsteve/album%201/035.jpg

[Misc]

[Grimnir]

Did these problems only start *after* you 'fiddled' with the bike? Did you make *absolutely* sure things went back where they should / as tight as they should?

[WetSparks]

Have you tried opening your petrol cap to let some air into the tank when the problem starts. If this makes a difference it would indicate you tank breather pipe is blocked somewhere.

[Misc]

[swampy]

[Misc]

[TUG]

Fuel pump? Check that its pumping when you rev it up, had a cbr600f with same problem and it was the pump not doing its job past 13v.
If not that could possibly be a blocked jet.
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Haz ER-5, innit!

[Misc]

[Grimnir]

[Misc]

[TUG]

[Misc]

[Grimnir]

[Ditto]

Bandits dont have a fuel pump, it's a gravity fed fuel line jobby.

Anyway now youve posted this across a variety of forums I dont know where to reply to lol

But you say you looked for restrictors. They would be on the other side of the carb going into the engine. And would not necessarily be discs. Mine uses diaphragms as restrictors which look like this and go into the top of the carbs:

https://images.wemoto.com/full/CARBURETTOR_DIAPHRAGM/10008505.jpg
But if you say its pulling well then it probably isnt restricted.

And these 3:

[Misc]

[Ditto]

Well basically, in this pic you put up:

https://img155.imageshack.us/img155/6241/dsc00243w.jpg

Underneath those black caps with the 4 screws is one of those diaphragms. The standard one just had 2 small holes in the bottom for the needle, but the restricted one has 4 more at the top near the rubber bit to allow more airflow, hence restricting the power.

When restricting this way you replace those diaphragms with the restricted ones.

Although saying that I would have thought they would all be standard, as its a bit cheap to sell you a bike with the restricted diaphragms and not the standard ones!

Theres this aswell actually just found. Similar manual but the Haynes one, not Suzuki:

https://filespump.com/go/18181219-suzuki-gsf600-1200-bandit-95-01-pdf.html
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CG 125 > Bandit 600 > CBR 600 FY > Street Triple R

[Misc]

Ditto, just took off the top cover of the carbs & here's what's underneath. It looks like the pic you posted but not sure what the standard ones look like so what do you make of it?

https://img46.imageshack.us/img46/759/dsc00266wv.jpg
https://img337.imageshack.us/img337/2974/dsc00267f.jpg

[Ditto]

Youd have to lift it out, being careful not to damage the rubber and look at the metal stalk to it.

Restricted ones have 4 holes near the top by the rubber aswell as the 2 ones at the bottom. So 6 in total compared to 2 for the standard ones.
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CG 125 > Bandit 600 > CBR 600 FY > Street Triple R

[Misc]

[Ditto]

Yer id say your bikes standard!

Whats the latest on the fuel issue?
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CG 125 > Bandit 600 > CBR 600 FY > Street Triple R

[Misc]

[Ditto]

That looks fine.

Yeh well its an easier job if your doing a carb removal. It could be the case that grit has gotten into the carbs which would block the jets or flood the foat bowls.

If youve already removed the carbs before its not a difficult job to strip them. Just have that workshop manual to hand.

This way you could check the jets, and the fuel pipe and should be able to discover the problem, as all the pipes are on ok by the looks of it.
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CG 125 > Bandit 600 > CBR 600 FY > Street Triple R

[Misc]