Sorry, meant to put mis-firing on 2 & 3, but then I am sure you know what I meant!

Thanks again for the pointers guys. It was deffo only firing on 2 and 3 originally as starting from cold the exhausts pipes on 1 and 4 would heat up too hot to touch in about 10 secs whilst 2/3 were only just getting warm. Changing the fuel though did have a big effect although with all the fiddling...

Well, I checked all the electrical connections to the coils (these are new by the way) and cut off the old ones and soldered on new ones on. Checked the pickup coils and the mechanical advance. I then convinced myself it was better. Then I convinced myself it was now spitting on all ALL cylinders. I...

Thanks for the replies guys. All good stuff. I am going to check all the wiring and see if anything is a miss from the pickup coils and the IC Igniter. As suggested would be good to swap out the carbs but its an expensive check as I dont have any to swap it with. Will report back any findings!

1980 Z1000 LTD B4 (Electronic Ignition) HELP! Well, I think it is a misfire.... Looking down the trusty color tune you can see it periodically and what can can only be described as "spits" or misfires(?) on idle and only on cyls 2 & 3. Not all the time but enough for a lumpy idle and p...

When I got the bike all the fuel hoses were cut off so I had no idea how they were supposed to go. As the brass outlet seems to look right I ran a single pipe from this to a "Y" connecter that then split the fuel off to both pairs of carbs. The mystery outlet I just left off as it was pain...

Had a look over the weekend. They both join up inside the body of the tap just inside. You can see by poking a bit of wire in each outlet. I am going to feed one pair of carbs off each I think and see how I get on.

Thanks for the suggestions.

Here is a photo. The brass outlet is round the back and obviously connects to the carbs. The "mystery" outlet is the grey job pointing skyward (it rotates 360 deg) capped off with the pipe and bolt combo. I will check the tap knob as suggested by Gus. Would be good to know its official tit...

Thanks Gus, I will have a look. I will try and post a photo as well.
Cheers.

Hi all, Regarding my 1980 Z1000 LTD B4. Now I have it running I am going back and looking at a few jobs I "bypassed" to get to where I am. It has a manual fuel tap which I rebuilt with a new seal kit. This has a brass fitting I connected both carbs to using a Y connector as well as another...

Thanks zorded. That's a kind offer. I have ordered some from Z-Power though. Cheers anyway.

Thanks Pigford. I will have a look about for some #120's. The Pilot Jet seems to be a #A15 standard so I will take it from there and find the next size up.

Got my 1980 B4 LTD running with some Pods as it came with no air boxes. It coughs back through the #1 carb on idle so I took them off to clean them out. Whilst they are off I thought I may as well change the jets as I wanted to also remove the emission control stuff as well. Current jet needles are ...

Thanks for the replies guys. I am going to keep it more or less standard as I like the retro looks. As you say Pigford, its too good to mess with really. IMO it has a sort of kitsch charm, and I don't mean that in a bad way so PLEASE don't anyone take offense as none is intended! ! I had a fairly mo...

Finally managed to get some photos uploaded. My 1980 Z1000 B4 LTD "Barn find" project imported from the USA. Still got a get it registered and it needs a bit more work so I will be posting some cries for help soon. Thanks for looking. http://i292.photobucket.com/albums/mm22/SwissGaz/KWAK2s...