GS1150ES Dies When Throttle Opened

[londonboards]

flyboy - so it would cut completely? I have re-jetted back to standard and have a complete and secure airbox. I don't have clip positions on my needles (perhaps I have the wrong needles) so I can only adjust by sanding the plastic disk.

But surely as it is near original spec I should get some throttle response? I agree that fine tuning might require some adjustment. I think I will try another set of carbs?

Greetings

[londonboards]

Agemax - It is was a non runner. I did the carbs and now have it running on idle only.

Greetings

[Agemax]

you reverted back to standard airbox but you still got that 4 into 1 on it. stick the bigger pilot jets back in....... you may still need to up the mains a bit.
try refitting both the mains and pilots back in and see how it runs then

[londonboards]

Agemax - I think I have an attitude to my problem!! I just don't want to believe you would get nothing, zippo, nil throttle response just because main jet is a size or 2 out. Flat spots - yes. Nothing - no.

I'm just a beginner - what do I know? Those carbs are coming off again this weekend.

Greetings

[Guest]

Pull out a jet needle and give us the number.

[posplayr]

If the bowels are full of gas are the bowels vented or for some reason did to block the vents?

Even when you idle it up it doesn't sound right and the stall is saying it is not sucking any gas.if you mist gas into the input with throttle slightly open it should rev to confirm it is carburation and not something else.

[Agemax]

Agemax - I think I have an attitude to my problem!! I just don't want to believe you would get nothing, zippo, nil throttle response just because main jet is a size or 2 out. Flat spots - yes. Nothing - no.

I'm just a beginner - what do I know? Those carbs are coming off again this weekend.

Greetings

the larger pilot jets will have a much bigger effect at very low throttle openings. maybe required to suit that 4into1 you have fitted.
i said "try" the mains as well just to see if it makes a difference!

[Nessism]

You shouldn't need larger pilot jets if the only change is the pipe. The bike may need larger main jets though.

[londonboards]

Works Really Well When Needles Assembled Correctly!!

See My GS1150 Blog for bigger pics.

I took the carbs off to see what the blazes was going on:



All the bowls had a decent amount of fuel in them:



Even though little tangs bent quite a bit:



There were still within spec:





Could the needles be a problem? They are quite low in the emulsion tubes:





I took the needles out and compared them to another set of carbs I have. This is what I found:



All four needles had been assembled with the spring on top rather than under the circlip. I am putting my hand up as being responsible!! I had never taken needles out before this rebuild and they sprung apart on me so I was not able to see the order of the parts. Should have checked the workshop manual. Or had the PO assembled them like that? He just might have ......

Here is proof that the problem is solved:

http://www.youtube.com/watch?v=1_TBzd6iy-E&feature=share&list=UUyXuswL_dnnw0DGg15QawlQ&index=1

Greetings

[Rob S.]

Beautiful looking (and sounding) bike, mate.

Now throw a seat on her, throw a leg over her, and show us what we want to see: movement. 0 to 100 (160, I forgot you're 'down under').

[londonboards]

Rob S - yup that's the next thing to do. I have to sort out a chain first. This bike came with one that was completely rusted up.

I'm from "across the pond" not "down under"

Greetings

[Chris G]

She lives bet your well chuffed good man.

[Rob S.]

Rob S - yup that's the next thing to do. I have to sort out a chain first. This bike came with one that was completely rusted up.

I'm from "across the pond" not "down under"

Greetings

I'm not fond of shafts, to put it mildly (lots of shaft riders around here).

The U.K.?

We "colonists" are doing fine, and we love the Queen!

PS Thanks for the Beatles. And the Stones. And...

[TeamDar]

When checking the float height the calipers should be on the part of the float where the metal arm is attached. You are checking on the wrong spot. That would explain why you have to bend the tang so much.

[Katarat]

Sounds good, are you watching a different video then I am ? It sounds like one of the pilot jets or passages is clogged up, its only running on 3 holes