carb second level of H*ll

Ok I have been threw every step in the bible of clean on here been threw the carbs 6 times my self once with help. Just picked them up from a local shop had them go threw them after putting them back on this am early and still no fuel to the fire. Now the carbs are back on the bike and still the same problem yes there is fuel coming out the tank and in floats of carbs. I have spark and it will run on spray or if i drop a little bit of fuel in jugs. the floats are clean cleaned all the jets including getting a face full doing choke. all the standard ets the ones that look like a holley jet are clean and clear ran bruches threw carb new seats neadles. just paid shop 275 to do them again they said they will work and nothing again is this thing cursed?

also valves are set the bike has been sitting for ever only 457 miles on it what am i missing here or do i part the dam thing out ?

 

if your idle is set too high or you give it any throttle the enrichment circuit is defeated. since yours doesn't start back off the idle and see if you get some fire in the hole.
then do all that other stuff your going to be told

 

no throttle given at start up just choke, trying to find the needle jet pictures on here the repair book I have doesn't cover 85 700 but covers the 82 650 i have here still waiting on manual for the 85. but my question is the Emulsion Tubes or needle jets as stated in the book I know i had the jets out but never seen this in there I'm not sure i did a clean job right more suited to car carbs than bike grrrrrr called the bike shop i took carbs to they want whole bike there before anything else is done with carbs as they say there sure they will work and the petcock is broken but it pisses fuel out at good clip on pri? btw they want 85 an hour to figure it out after spending 275 for them to go threw the carbs first thing this am.

 

the shop I took carbs to didn't touch them. the paint is still on the screws for the bowls un touched, so I going in them again tonight any tips ? spots to check thourly? been therw them quite a few times already I have to be missing somthing

 

After the Rip Van Winkle that bike did, ... you are going to have some work to do ... especially concerning systems that need to be replaced or rehabilitated just from sitting so long.

Replace the Fuse Panel.
While you are attending to performing the prescribed maintenance getting Brakes, Tires, Forks and Electrical Connections road-ready, ... you should have those Carbs Cleaned and adjusted by a trustworthy individual who will do a comprehensive thorough cleaning and set-up prior to on-the-bike Fine Tuning.

 

did you make sure to clean out/open up the enrichment wells in the float bowls? Man what a you know what they can be. they get so blocked up it seems like they are supposed to be air tight.

 

Yes bowls are clean as is the jets there is new rubber brakes and I wired a new blade style fuse box in ( automotive mini style) that's all good just the carbs giving trouble I'm going in at them tonight hope to make some head way on them

 

You have fuel in the carb bowls? I made the mistake of installing the floats upside down = no fuel flow.

 

I had one cylinder that would't fire and I finally got it to fire by opening the pilot screw almost 5 turns. That led me to looking for some air or vacuum leak since it required so much gas. I found a leaking intake gasket, fixed it and that solved the problem. So, try that on one of the cylinders and see if it will fire. Also, are you certain that the bench sync was done correctly? Did you remove the pilot screws and blow out the channels?

 

Removed the bowl drain and fuel does come out and new manifolds on it head side the boots that go to air box were OK thinking something is clogging up where does main fuel free or Ventura run on these anyone know?

 

Rick the bike was repaired after the crash layed it down a ditch. I was not happy with the tank shrink on bondo look that's why that's there

 

The bowls are clean but did you clean the tiny little opening in the side of the bowl that the small brass tube goes into?

It's a tiny little bugger.

I want to add this info to help enlighten you as to the pain this can be.

I ended up making a needle like tool by sanding down a piece of .030 mig wire on the belt sander into some ungodly pointy and fragile little needle like tool. Before I did this and prodded down in there, they were sealed shut and would not pass light, air, or carb cleaner. once i poked through them i was able to use air and carb cleaner to get them flowing.

I would have thought they were supposed to be sealed if it weren't for the knowledge on this forum.

 

This. Make sure floats are installed the correct way.


Also, it's worthwhile to check compression.

 

Im an idiot found two problems floats in upside down had a smidgen of fuel in bowls two jets were in wrong spots now to figure out how to set float level then bench test then I'm burning the tire I hope thanks for the help y'all anyone know the float level measured hight

 

Glad to hear you got her sorted out.

 

The very best way to set Float Heights is using the "Clear Tube Method".
With a length of Vinyl Tube connected to the Fuel Bowl Drain Port, ... loosen the Drain Screw until the Tube fills to the level of the Height allowed by the Float.

Look at this illustration.
The area in Green is Ideal Specs.
Right at the TOP of the Lock Washer.

 

Ok thanks much y'all its alive and very well now just ripped twenty miles in poring rain and thirty five degrees lol and its flawless so tomorrow put the yics tool in it and menomenter on and finish the job thanks again look forward to seeing some of y'all on the road

 

OK that's what I set them at as the only mention I found was in the Carb section so I'm good thanks

 

Hot diggity. Glad to year you got her running. Always nice to see another XJ7 on the road.

 

Haha I know that feeling when you've been struggling with something & finally get it sorted, you just gotta ride

You see now why me & others were so concerned for you to sort the tires and brakes first job

Don't forget to have the engine up to temp before syncing by the way.