1986 xj700 maxim dies everytime I turn the throttle

Hello, I am new to the XJ world and I’m having some troubles. I used a rebuild kit for the carbs, and the bike fires up right away. But everytime I go to give it some throttle the bike dies. Any ideas on what it could be? Please let me know and thank you for your time.

 

Is your throttle cable connected to the enrichment rail?

 

So welcome to XJbikes.com - more info would be helpful

Where did you purchase the carburetor kit? eBay and Amazon kits are marginal to say the least. All the original brass jets should be fine unless they were somehow damaged with poor tools and technique.

Did you do a bench sync on the carbs?

How about a wet set for fuel level?
https://www.xj4ever.com/setting fuel levels.pdf

Was the bike a runner when you started? Is the fuel tank clear of sediment and rust?

 

I got the carb kit on Amazon, brand KCFJW2025. The original jets on the bike were rough and stripped, although I do still have them. I have yet to do a bench sync on the carbs. And no the bike did not start before I bought it. Unfortunately the bike sat in a garage for 20 years. So far I have chanced the jets, gaskets, petcock and the emulsion tubes. I have also changed and set the air fuel adjustment screws to the factory specs. I have cleaned the tank and have gotten every bit of rust I could and I have cleaned and double checked the carbs to make sure there was no blockage. I also set the floats to 17.5 mm as suggested. It also has premium gas and new oil. It will idle well but die when given throttle. I do believe the throttle cable and choke cable are in the right place, but I will provide photos to be sure! Thank you all for getting back to me! I really do appreciate it!

photo 1: choke cable
Photo 2: throttle cable

 

The bracket holding the throttle cable looks bent, this should be a straight pull
This shouldn't have anything to do with your stalling problem though.

 

That cable housing is super bent over. I don't see how the throttle can even work.

 

I’ll straighten it out today, but with it being bent would it still kill the bike when I give it throttle?

 

Sounds like you have some clogged jets

 

I agree that you have carburetor internal problems. I don't buy anything for the carbs that doesn't come from XJ4Ever because the parts from him are always the correct parts. Some of the other internet stuff isn't, and since working on the carbs is a pain-in-the-butt process, I like to start with the correct parts. From my own experience with my stock '85 XJ700n, I can offer your the following advice and you probably won't have to redo it 4-5 times (like I did) to get it right.
First, but your parts from XJ4Ever to insure the proper parts for your bike. (He convinced me to go with the solid brass float needles and I highly recommend that you do the same.)
Second, follow the "Church of Clean" word for word the first time. No shortcuts--I tried them, not a good idea.
Check and verify everything.
I also recommend boiling the carb bodies for about 10 minutes, immediately blow carb cleaner through them and then compressed air. The heat softens any varnish or gum in the passages and makes it easier to clean them.
Wet set the carbs before reinstalling them. Be sure you have the proper paper air filter (sure hope you don't have pods). Once you get it idling, be sure to properly sync them
You can set the pilot screws at what you think are factory settings, but I found that to be a little rich for my bike. I used a colortune plug to adjust the pilot screw by closing the pilot screw until I saw the white flame indicating a lean position. I then opened the screw slightly until the white disappeared and repeated this for each carb. I then installed new plugs (so I could read them) and rode the bike about 10 miles. I then removed the plugs and looked for a nice grey or brown color, If it was still all white I opened the pilot screw about the width of a dime and repeated the ride, read, adjust process until the plugs had a nice brown color. I actually did this over several weeks and finally got them adjusted. Each carburetor is different and so my pilot screw setting run from slightly less then two turns open to about 2 1/4 turns open. If you don't have a colortune plug, then you can do this process by just starting with all your pilot screws set at a little more than 1 3/4 turns open. But be sure to keep adjusting untin you get the light grey or brown on the plug porcelain.