So hopefully with new plugs I will be at an end with it.
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I Do Not Believe It !!!.
Moderators: KeithZ1R, chrisu, paul doran, Taffus
I Do Not Believe It !!!.
I have had running problems with number 3 carb from the start, first off the pilot jet has been rounded off by the previous owner, second, carb to engine rubber was loose so sucking air, then I put on 4 new rubbers and number 3`s was faulty, then today I started it up and it was intermittent on 3, swapped plug with four and it moved over, the plug only seemed to work with the plug cap over an inch away from it, I`ve been told recently that they make NGK`s in france and that they are crap.
So hopefully with new plugs I will be at an end with it.
So hopefully with new plugs I will be at an end with it.
1981 KZ1000 K1 LTD
Farm Boy with an O Level in Metalwork and not much else.
Everything in Sussex is a She, Except Tom Cat and She`s a He.
Farm Boy with an O Level in Metalwork and not much else.
Everything in Sussex is a She, Except Tom Cat and She`s a He.
- wheelysteve
- 100Club

- Posts: 450
- Joined: 10th Mar 2014
- Location: Wokingham, Berks
I've had exactly the same grief with my US Z1B. After swopping plugs around and swearing a lot, have now thrown the NGK's in the bin and have ordered some Denso's from spark plugs.co.uk.
Hopefully this will sort it out !!
Hopefully this will sort it out !!
1975 Z1B Candy Red
1975 Z1B Candy Blue
1975 Dogs Z1B
1977 Z650B1
1978 Z650B2
H***a Blackbird
PUM 710
1975 Z1B Candy Blue
1975 Dogs Z1B
1977 Z650B1
1978 Z650B2
H***a Blackbird
PUM 710
-
keith mayall
- 100Club

- Posts: 151
- Joined: 1st Jun 2014
- Location: MANCHESTER
-
keith mayall
- 100Club

- Posts: 151
- Joined: 1st Jun 2014
- Location: MANCHESTER
iridium for me from now on,saves pissin about.
Irridium plugs were originally intended to extend service intervals as far as i know.
They will foul or whet, exactly the same as copper types but of course will be more expensive in doing so.
They wont cure any mixture or running difficulties and these will remain in the background to trip you up if not addressed.
Just had a bit of this myself, bike would run and then not at all.
Put dirty old plugs back in and perfect running.
Eventually drained the tank and took out about a fivers worth of petrol.
About £1,50 of it was tiny black water droplets!!!
Not seen the like of it before.
AL
1981 J1
Well today I`ve fitted new NGK`s as I had already ordered them from a mate and the Denso`s had not turned up, on start up number 3 is still lazy on firing then after about a minute it starts firing, then after that its ok, stop it for 20 minutes and its still ok, leave it for a day and it starts up on 1, 2 and 4 and 3 kicks in after about a minute again, this has happened 3 days in a row.
Anybody got any ideas or a cure
Anybody got any ideas or a cure
1981 KZ1000 K1 LTD
Farm Boy with an O Level in Metalwork and not much else.
Everything in Sussex is a She, Except Tom Cat and She`s a He.
Farm Boy with an O Level in Metalwork and not much else.
Everything in Sussex is a She, Except Tom Cat and She`s a He.
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