on and off and on and off... I'm a pro at taking carbs off and putting them back on

[Ohioan]

Bwringer, I've checked the petcock, and it's nice and clean. It was replaced by the PO. (and I have a spare)

TCK, I don't see needle valves on the z1 website. Am I looking in the wrong place? Will these work? http://www.z1enterprises.com/detail.aspx?ID=2556. I also need the filter for the end.

Rusty, I know that my best bet would be to replace all 4, on my local parts supplier's website they're $42 a piece, and right now, that's a bit too much for swing.

I get off early today, so I'm going to do some calling around and see if I can find one somewhere.

I measured the float height again last night. On the carb in question, one side of the float has a brown appearance to it, like it has been in contact with fuel, while the other side is black. So I measure both sides, and one side sits higher than the other. So the float is bent. So that needs replaced or repaired.

Yes, I can have the carbs on the bike and running in just under 20 minutes. Then back off in less than 10.

[rustybronco]

Rusty, I know that my best bet would be to replace all 4, on my local parts supplier's website they're $42 a piece, and right now, that's a bit too much for swing.

Should be... http://www.z1enterprises.com/detail.aspx?ID=1965 call Jeff if in doubt.

[Ohioan]

ahhh, I want the whole assembly. The brass along with the needle.

[rustybronco]

Why? are the seats damaged? what does the the seating area of the needles look like?
most of the time it's the springs in the needles that get weak with age.

it's your call...

[Ohioan]

the outside of the seat is beat up pretty good from pliers. I can't really see down in the brass to see what it looks like. I'm just going to go for the whole shebang and be done with it.

it's $33 for the needle and seat. and they have them in stock so I can get it in today and hopefully be on the road this evening.



You know, what has really helped with my patience was a discussion I had with a buddy of mine who works on bikes for a living with his dad and brother. He said there are days when they spend all day putting carbs on and off a bike before they get it running good. That made me feel better about my trial and error process.

[J Paster]

Po' Boys

Pull up "carb float bowl gaskets" on Amazon.com sometime. You can find a set of "Po Boy" needle valves sans seats and float bowl gaskets for as low as < $3 apiece. But then, there's the stupid shipping...

[Ohioan]

Well, a new needle valve seat and needle fixed the leaky carb!!! Yay!

Now, to get idle set and then do plug chops to get my needles in the right spot.

[SKD]

Well, a new needle valve seat and needle fixed the leaky carb!!! Yay!

Now, to get idle set and then do plug chops to get my needles in the right spot.

GOOD to hear ya got it...

[49er]

For those playing along at home with chain drive bikes, it's worth noting that it's much easier to get the carbs and airbox in and out of a shaftie. With a bit of practice, you can have the carbs in or out in under 10 minutes, easy.

Geez Brian, don't rub it into the chain brigade about the benefits of shafties. They're getting hard enough to find now, as it is!!.

Like you, takes me around 10 minutes to remove and around 15 to replace and set/adjust cables. And that's without the practice of umpteen removals for jetting trials after fitting those marvelous, monster power producing" PODS"!!

[Ohioan]

I took it out for a spin last night. It has a definite flat spot at 1/4 throttle. It's really apparent in gears 1 through 3.

I'm going to do plug chops to see what cylinders are hanging on me and then adjust the needles accordingly.

[rustybronco]

Lessons learned so far,

1. Do things the correct, thorough way first.

Are the air box side covers sealed properly? properly oiled air filter? are the carb boots and air box boots old and shrunk which becomes apparent when you have to bottom out the clamps? is the snorkel still on the air box? any exhaust modifications?

[Ohioan]

I used foam tape on the airbox covers. The air filter is a K&N which I just cleaned, and will do again since fuel was leaking back. Carb boots were replaced not too long ago. and the snorkel is still on the box.

It has a v&h and DJ Stage 1 installed per instructions.

I just need to adjust the needles a bit I think.

[Don-lo]

The chain brigade has one shining beacon of light: the original GS750 airbox.

[Ohioan]

I plug chopped it. Right around 1/4 throttle there was a flat spot. I killed the engine and pulled the plugs, all 4 were white. So, I rode home and dropped the clip n the needles one notch. They were placed on the third from the top notch, i lowered it to forth to raise the needle and therefore richen the mixture.

I didn't get to ride it tonight as it got dark on me. I hope to be able to get a little test spin on it tomorrow.


The best part? I can remove the slides without pulling the carbs!!

hopefully no more on again off agains for me!

[49er]

The chain brigade has one shining beacon of light: the original GS750 airbox.

That's an impressive looking, well faired 1000. Not sure what the significance is of your quote about the 750 airbox. They did fit the same box to the '79 850's though!!