www.zxrworld.co.uk

Hello all
I’m having some serious issues with my bike. Right the bike started running on 3 cylinders so I cleaned the carbs out. Was ok for about 2 minutes so i got some coils off eBay cleaned all the plugs and regapped them. The bike started 1st time and was running like a dream till I revved her up. She started firing on 2/3 cylinders and fuel was pissing out the back of the carbs and now the bike will not start and run. It will start but cut’s out start away and is a pig to start again. Starting to wish I never sold my car and bought the piece of sh*t :smt013 :smt013
can anyone help???please
Banjo

do you think the carbs need balancing. The plugs where Dry,black sooty looking and IIRC that could be over rich fuel mixture. I've not got a manual so can't tell or remember
Regards
Banjo

always worth balancing carbs, thats not the problem though. Have you been able to isolate which cylinder(s) are dropping out?

hi first ever post so hope this works well i had the same trouble with the girlfriends bike and was scratching my head for days your right saying black plugs are running rich which will definately end in misfiring i ended up cleaning plugs and swapping original air filter for a k&n item to try and lean it off a bit after this it ran spot on and has done since if it keeps coming back you might have to look at swapping your jets as another thing throw some redex in your tank cause if your plugs are sooty you can assume your valves will be too
hope this helps!

no not tryed to isolate which cylinder(s) are dropping out? But when i took the plugs back out cylinder,s 1,2,4 (plugs) were wet but clean and number 3 was Dry,black sooty looking. So does that mean 1,2,4 are the one's dropping out.
Regards
Banjo

I've tryed running the bike with no airbox and it's still the same. well saying that it spit's fuel at me out the trumpets
regards
Banjo

have you overhalled your carbs correctly ie checked the float heights ,choke plunger , cleaned and so on id go through all the checks that they say in the manual http://www.zxrworld.co.uk/Manuals/H%20M ... er%202.pdf including balancing and setting the mixture screws so you know its not the carbs this sould be done every so often to keep the bike running sweet regardless other than that test your ic using a multimeter or try someone elses in

you say fuel is pissing out the back of the carbs i would say your floats probably jammed or somethings not right inside the carb.

the wet plugs are the missing ones yes. For that many to go down with new coils I would look at carbs. Maybe just replace them

hello all
When i cleaned the carbs out i cleaned the 3 jets, needles and the big black rubber thing. one of the black rubber thing's was a little bit to big took me forever to get it to fit back in. should i take the carbs back off the bike and clean them out again and fit my factory pro carb kit our should i wait till the bike is running right to fit the carb kit.

The fuel that was coming out the carbs was from the over flow pipe at the left hand side of the carbs
Regards
Banjo

id say check your floats sounds like they might be getting stuck open and flooding

once you've sorted this problem then you can move onto the pistions

will take the carbs off the bike in a bit. I will take some pics as i go
Thanks to all of you for all your help and advice???
regards
Banjo

Back again
Got the carbs off the bike. Floats 2 and 3 were about 13/14mm and 1 and 4 were about 12/13mm so i've put them all to about 11mm. Put it all back and i think it has stoped flooding but it is still down 1 or 2 cylinders...
Is it important to bolt the coils to the frame because my coils are just zip tagged on??? and it was like that when i got it.
Would this make the bike play up like it is
regards
dean

shouldn't matter they go into a rubber well nut anyway so theres no contuction path.

well i'm now stuck. i've cleaned the plugs and carbs put some brand new second hand coils on the bike what else can i try now. I was told the bike had a new cam chain and tensioner fitted when i got it, could the timing be out ? But it was running fine when i picked it up but it has been getting progressively worse and every thing that i try is no good and it's doing my head right in. And to add insult to injury i've lost my job so i'm f**king broke

Regards
Dean(banjo)