Carbs or ignition

[mikey]

All this year i have been plauged with problems with my Z to the point since the end of the southwest rally end of july ive hardly used it, right start it from cold no 2 and 4 always fire no 3 ocasionaly as well, to get no 1 and 3 to fire pull the plug caps off and let it run for at least 5 mins put the plug caps back on and most times 1 and 4 cut in, when they don't give it a couple handfulls of realy big revs and after it backfires and pops it runs on all 4, how ever today just couldnt get no 4 to fire.
When it does run on all 4 it runs better at high revs, what ever gear you are in hold it at 3,000 rpm and it splutters, anyone got any ideas please, ive tried everything i can think of, its got standard airbox jets etc.

[02GF74]

ooh, everyone havong carb problems it seems.

well, it doesn't point to coils.

have you stripped and cleaned the carbs recently?

the ickle jets get blocked.

[mikey]

Done it so many times could do it blindfolded now

[sweptail]

I get something like this. Im beginning to suspect the dyna s.But, it runs great when warmed up.

[kev edwards]

with so many of us having a very similar problem , to me it sounds like that shite fuel all of the petrol companies are charging us so much for .

[Redbeard]

Could it be carb inlet rubbers are leaking, that causes bad running?

[sweptail]

yes. I suspect the rubbers may have somethin to do with it.

[1beelee]

Our Z1b would fire up from cold on 2n4 every time 2,3n4 most times 1 hardly ever.Then the same thing as yours mikey pop and fart onto all four as it warmed.but then run fine all day when warm.
I thought it had to be the choke/cold start circut so i set about it with carb cleaner and a very fine wire.No1 was blocked,3 dirty,2n4 ok.Starts and runs great now but I'm thinking of having them cleaned in a sonic bath over the winter.And I agree with the petrol comment have thought about a filter but It;ll look shite.
Paul

[mikey]

Cheers guys going to get the carbs off tonight and strip em again and ginger bear has very kindly offered to put them in his ultra sonic cleaner and im going to get carb overhaul kit and replace everything and if that dont work get me baseball bat out and beat the crap out of it.

[mikey]

Could it be carb inlet rubbers are leaking, that causes bad running?

All new ones

[Ginger Bear]

Here you go Mikey.....
http://www.z1enterprises.com/detail.aspx?ID=43
According to the on-site currency converter a set of 4 will cost £50 + postage, which won't be much. Will probably work out cheaper than Z-Power & you get loads more in the kit!!

[mikey]

Cheers steve yes it does look a more comprehensive kit than the kit i was looking at on the Z power web site.
Got the carbs off tonight strip em tomorrow and see you friday for their swimming lesson in your ultra sonic tank cheers bud, owe you a shiny bit or two.

[02GF74]

^^^ good find - contains much more gubbins (pilot jet, main etc) than the overhaul kits I have seen for same price.

any idea how long it takes to arrive over this side of the pond?

[Ginger Bear]

You'll be surprised. Shouldn't be much more than a week!

[phil churchett]

You'll be surprised. Shouldn't be much more than a week!

Postal strike permitting