I need some advice... AGAIN

Okay so I've been in my garage all weekend working on a 1992 xj600 I just bought. My floats were stuck and that put gas in my oil. went through some carb work and I finally managed to get the bike to fire up. But when it fires it just revs to about 4k and dies immediately. and only starts from starter fluid not from the gas tank. :?

need some help and advice.

Thanks again guys. This website is a HUGE help. really the only help I am getting. I'm a noob when it comes to all this stuff but I really want to learn as much as I can.

 

I'm in the exact same place. I pulled my carbs back off and I'm going to re-adjust the float level to make sure they are correct. I'm also going to be looking hard at the throttle linkage and cable tension since my throttle wasn't "snapping" back into place. Did you have any gas coming out under the carbs? Feel around and make sure you don't. Other than that, all I can say is take Bigfitz52's advice and take your time, do it right, by the numbers on this site and in your manual, bench sync, etc. before you waste time putting them back on the bike. I'm also going to be putting rtv on all the intake boots that have cracks in them, something else you can check. Hope that helps!

 

Yeah I guess I need to get those things back on the work bench too. If you figure out whats going on with the throttle let me know, mine sticks also (slowly moves back sometimes) I'll check out the intake boots also thanks man. I feel like we are working on the same bike haha

 

I am also getting a lot of backfire out of the carbs.

 

Check the linkage is returning by hand without the cable, if not, you might have the rack out of line, if it snaps back without the cable, need I go on ?
You're going to get back firing if you keep pumping starter fluid in there.
Check the flow from the petcock on down, one part at a time.

 

You have to get the Carbs perfectly cleaned.
You need to make sure the Diaphragm Bores aren't oxidized and preventing the free movement of the Piston.

All the Jets, Passages and Tiny Metering Ports must be open and clear.
Once you have the Carbs Cleaned, ... you must regulate the Mixture.

Bench Sync the Throttle Plates using 1/4" Wide Strips of 3X5 Card.
>>Get the Bike to IDLE using the Pilot Mixture Screws using as LITTLE Open Throttles as possible.

Before you commence Tuning the Carbs, ... assure that the Valves are within Specs.

Ideally, you should set the Pilot Mixtures using a COLORTUNE Plug.
Once you have the IDLE such that the Bike will run on the Air-Fuel Mixture provided by the Pilots, ... Make (My-nute) adjustments to the Mixture to allow for additional >> Supplemental Richness >> to sustain Combustion and get the Bike to accelerate away from IDLE.

Until the Valves are adjusted, ...
and, ...
The Carbs so Clean they look like they were in with the wash you sent to a Chinese Laundry ...
You'll have difficulty getting the Bike to run right.

 

Hey Rick, thanks for giving us that info. I will clean and bench sync them as per your posts. I did just replace all my float needles when rebuilding the bottoms. I'm thinking that my fuel leaking issue after reassembly is due to this:

So once I know the float levels are correct, will finish with the bench sync, unless you think I should do the bench sync first, then adjust the floats? Will get valves adjusted and re-shimmed as necessary asap before I try to fine-tune the carbs. Sorry I'm such a newb :-(

 

It doesn't matter which you do first, they are not connected, but I would do the fuel levels first.

 

Thanks wizard! Hope you're getting getting some good info MrPaddeout, lol, not trying to jack your thread bro. We're in this sh*t together! lol :roll:

 

On the throttle not returning to idle: Have you checked to be sure the throttle assembly is securely fastened to the bars? I recently swapped to a new set of bars and had initially slid the the grip on too tightly. So much so that it created friction between the inside of the grip and the end of the bars, not allowing it to freely snap back.

Chances are this is not issue. It just popped in my head and I didn't want you to over look anything.

 

Thanks a ton guys, I'll definitely get all this stuff done. This website has been a ton of help. SO MUCH INFO on past threads. haha yeah macros10 I hear ya on that man.

 

Does anyone have a picture of the pilot mixture screws? I just want to make sure before I start messing with anything. Thanks!

 

Try this

 

Big help wizard. thanks man