Cleaning fuel pump - is it possible ?

[Florida Guy]

My G has only 2,500 miles, and sat for a long time before I bought it. P/O rebuilt carbs, and ran it for about 500 miles before it came to me.
I rode only about 50 miles before the fuel pump stopped working.
I'm thinking maybe it's gummed-up.
Has anyone tried putting some cleaner into a pump to make it work again? Someone told me they did it, and the pump started working again.
I'll know in a few days if this method works.

[blowerbike]

huh???
pump??
what pump??
ok i will research but i didnt think a G had a fuel pump.
pre-injected GSXR'S was gravity feed only

[blowerbike]

huh???
pump??
what pump??
ok i will research but i didnt think a G had a fuel pump.
pre-injected GSXR'S was gravity feed only

try:
http://www.gsx1100g.com

says the site is down but soon to re-open.
ive never worked on a late G model.
i had no idea they had a pump

[Florida Guy]

huh???
pump??
what pump??
ok i will research but i didnt think a G had a fuel pump.
pre-injected GSXR'S was gravity feed only

1993 GSX1100G does have a fuel pump. I wish it didn't.

[Florida Guy]

try:
http://www.gsx1100g.com

says the site is down but soon to re-open.
ive never worked on a late G model.
i had no idea they had a pump

That site has been out for a few years. I guess the guy running it didn't have the time.
I am on the Yahoo! GSX forum and some of those guys said my pump may be saved.

[Nessism]

Is the pump serviceable? Can you take it apart and clean it properly instead of using snake oil?

[Big T]

Well, it can't hurt.

I've degummed carbs by draining the gas and filling with carb cleaner for a few days. Techron works especially well.

[bwringer]

Is it a vacuum-operated pump or electric?

A vacuum-operated pump (as used on the VX800) shouldn't be exposed to carb cleaner, since the chemical will damage the rubber diaphragms and such inside.

An electric pump, I dunno. I'd still start by flushing with something milder than carb cleaner if possible.

[Florida Guy]

Is it a vacuum-operated pump or electric?

A vacuum-operated pump (as used on the VX800) shouldn't be exposed to carb cleaner, since the chemical will damage the rubber diaphragms and such inside.

An electric pump, I dunno. I'd still start by flushing with something milder than carb cleaner if possible.

It's electric.

[Florida Guy]

Is the pump serviceable? Can you take it apart and clean it properly instead of using snake oil?

Unfortunately not.

[asetech]

give it a few taps, if it starts working the brushes are probably sticking. in that case its probably best to replace it.

[waterman]

+1 on the few taps. I had a electric fuel pump on my 85 madura. When I got the bike, it was balky. Gave it a few taps with hammer and cleaned contacts, came back to life. Test it by pulling off outlet hose and applying power. Most have a quantity delivered spec but if it is pushing a full sized stream you are usually good.

I had found on that bike, once it had reached pressure it would shut off. This made it hard at first to know if it was working. I also ran into trouble with getting it primed again after running out of fuel. I ended up wiring a switch to manual run pump in this situation. Will have to admit, this was prior to fixing the previous owners overly rich carb settings. Made it a real pain to start.

How do you like your newer G? I test drove one that had been abused with a ragged slipping clutch and almost bought it still. Looking for one in future.

[Florida Guy]

+1 on the few taps. I had a electric fuel pump on my 85 madura. When I got the bike, it was balky. Gave it a few taps with hammer and cleaned contacts, came back to life. Test it by pulling off outlet hose and applying power. Most have a quantity delivered spec but if it is pushing a full sized stream you are usually good.

I had found on that bike, once it had reached pressure it would shut off. This made it hard at first to know if it was working. I also ran into trouble with getting it primed again after running out of fuel. I ended up wiring a switch to manual run pump in this situation. Will have to admit, this was prior to fixing the previous owners overly rich carb settings. Made it a real pain to start.

How do you like your newer G?

Thanks for the info.
I like the G. I had a new one in '93, and bought this one a few months ago because it is such a nice bike. It's big and strong, and I like the shaft.

[focus frenzy]

jeeeeeze! I just checked and that puppy is $226usd. you could get a small generic one and a regulator from autozone for a fraction of that.

[Guest]

jeeeeeze! I just checked and that puppy is $226usd. you could get a small generic one and a regulator from autozone for a fraction of that.

That's what I was going to say!