Join Date: Jul 2008
Location: Cheshire. England.
Mentioned: 0 Post(s)
Have you changed the plugs?
I just changed the plugs on the Versys. I decided to put in the NGK Iridium super-plugs which I have used for some time on all my bikes. They just don't seem to wear out.
This is the first fuel-injected bike I have owned and the first time I have worked on a modern bike as my last bike was a 1990's Yamaha Superten 750 twin.
First job take the tank off. Refer to the workshop manual. "Using a pump pump out all the petrol from the tank that you can". There is a nice snap-release petrol union in the line below the tank but no means of isolating the petrol so everything still left in the tank (it says in the manual you cant get it all out with a pump) has to run out.
Put rags in place to soak up all the petrol which will run uncontrolled once you separate the petrol union. NOT impressed!
Remove tank. I decided to put the Workmate portable bench alongside the bike and lifted the tank across onto it with the fortunately quite long hose still attached so I avoided the petrol bath.
Disconnect all the plugs and sockets, breather pipes, air-valve?? and connecting hoses. It is a solid resin pipe to the pump mounted underneath and attached to the tank, so no easy installation of a tap seems possible.
Take the top off the airbox and remove the 4 screws taking care not to drop them down into the butterfly throttle inlets which are beside them. Remove airbox, forcing it out past tight nests of wiring, connectors etc, and find out there is another breather hose underneath to release.
The stick ignition-coils which are down the plug holes on top of the spark plugs can now be released. Very tight, so I replaced with a smear of copperslip on the rubber seal. Now remove the plugs only to find they are exactly the same top quality NGK plugs I then replaced them with. Full marks to Kawasaki. Mind you, it is such a diabolical job it was certainly kind of them to minimise the number of times you need to do it. After 4600 miles there was no wear at all, the electrode gap was the same as new and the nice light brown plugs showed perfect fuelling. I now have 2 perfect spares but God help me that I ever have to change them by the roadside.
The 2 air inlet scoops are right on top of the engine so MUST be getting warm air, and they are positioned facing forward and will get a lot of water in in monsoon conditions. The airbox is surprisingly small which probably effects the engines bottom-end.
There is an ďair-valve" connecting the air-box to the rocker box with electrical operation. Donít know how that works, must read up on it.
All this to change the plugs which I could do in 5 minutes on my Superten. I won't admit how long it took me.
I just hope I donít ever break down electrically far from civilisation. Even though I am an engineer I wouldnít know how to even start. I will be inhibited to take it to the sort of remote places I took the Superten to, some of which I would probably have died and rotted before being found.
To be honest I am very disheartened by the staggering complexity of this thing. I always knew that an electronic fuel-injected bike would not be user servicable in the way that all my previous bikes have been but I was unprepared for this. The only thing in its favour in my eyes is the 65 mpg which I cannot knock. Other than that the "progress" has been backwards. I have held off changing to a fuel-injected bike for years because of this.
A bit sad.