Bandit 600 Fuel Starvation

[JayFish]

Hi guys, long winded but here goes...
I recently-ish bought myself a Bandit 600s. Due to the fact the fairing is horrible i set about ripping it apart, I took the rear fairing, tank and front mudguard off to have them sprayed. Long story short after getting my tank back and fitting it and a new can ive been having trouble.

It wouldn't start in the freezing temperatures so easy start was used, (Hadn't realised it is highly not recommended) Flattened the battery in the process. Now that we have thawed out, the bike starts okay on the choke but idles very low without it, with the fuel tap on Prime the bike is fine and revs nice and high but on 'on' when revving the engine the revs drop off and kills the engine if you dont let go of the throttle.

I've probably not done myself any favours by mauling about with the idle screw. Spraying lots of easy start and then carb cleaner in the air box. Running it dry of fuel, mauling with the throttle cable adjusters at the handlebar end.
I've put new plugs in and its still the same.

Apologies for the long winded post.

All suggestions will be very appreciated,

[bird]

Check the vacuum pipe that operates the fuel tap feed. This uses the inlet rush from the carb manifold to suck at a little diaphragm in the tap, opening the fuel flow
if its leaking and sucking in air from elsewhere that can cause the fuel not to flow. When its on prime, the vacuum feed is bypassed so fuel flows.

Worth checking the tap diaphragm too if this doesn't work, cos it might have hole in it

Check the pipe has no leaks in it, and wrap a cable tie around each end where it goes into the fuel tap/comes out of the inlet manifold.

I had a VF400 that used to get fuel stavation because of this at around 80mph. That was an experience, I can tell you.

[JayFish]

Thanks bird, I'll give that a try, sounds like hard work with diaphragms and vacuums but i'm sure i'll figure it out :unsure: haha

[bird]

If its the pipe its dead simple. There's a small pipe in addition to the fuel pipe from the fuel tap to the bit where the carbs meet the engine, about half the diameter of a fuel pipe.

If it comes off very easily, or has a hole in it, there's your problem.

[JayFish]

Sweet, I'll get onto it tomorrow and update! Thanks a bunch bird:thumbsu:

[lowrider]

I had a bike where the fuel tap despite me cleaning and checking it for some reason would after a few minutes of running stop working. I simply replaced the tap and the problem was gone. Still no idea why as i went through all the checks as above and everything was fine.
Just worth thinking about as an easy route.