Bike problem

Cuddlesworth

Basically the bike is misfiring and it seems at idle to be struggling to stay at 1,000rpm. This is after it had to be left out in the rain after two days. There is also a feeling of chugging when accelerating.

Bike is a kawa ER-6n

Does anybody have any ideas? Could it be something like a spark plug I can do myself? Bit strapped for cash at the moment.

galwaytt

It does sound like water gathering in/around the plugs alright, so start there, it won't cost you anything.

Take it to a garage and using the airline, blow air all around/in the spark plug area to dry it out.

Then, take off and clean the cap thoroughly, and the lead(s). Re-fit, and liberally spray either WD-40/GT85 or similar in there.

I'd be inclined to give a squirt of it on all connectors, into kill switch, ignition switch etc (no need to dismantle anything, it'll find it's way in........)

Do that for as start.

waraf

Yeah there are basically three things to check when it comes to combustion: fuel, air and ignition. For the ignition check plugs, caps, HT leads and coils for signs of water or wear. For fuel drain the bowl of your carb and see if there's any water in that. Also make sure your tank is breathing properly and the carb bowl is filling. For air, make sure your air box is not blocked and the filter inside the box is clean. Also, if you're having idling problems you should check the pipes that go from the airbox to the carb to make sure they're not split and also any connections between the carb and the engine. If they have even the slightest split, the bike will be sucking too much air which affects the fuel:air ratio and causes poor idling.

Cuddlesworth

Thanks, I'll try to do most of that after work today.

waraf

Cuddlesworth wrote: »

Thanks, I'll try to do most of that after work today.

Keep us posted

Cuddlesworth

Spark plug popped out. I am one very unhappy bunny as my bike only very recentley went through a full service and its in a position where I can't get to it. There are going to be some very angry phone calls tommorow.

bushy...

Are the thread pulled on the head or was it just not tightened ?

Cuddlesworth

bushy... wrote: »

Are the thread pulled on the head or was it just not tightened ?

The shop is saying it broke in two.

So far I have heard, it was the fault of the last service which was done 1,000km before theirs. I was only told their was stuff under the seat stating this. Funny they only choose to mention this after problems arise, not before I paid for the service.

That they never touched the sparkplugs after I paid for a full service which I believe to be an integral part of it. Makes me question if they actually did anything besides replace the front tyre.

That the sparkplug broke into two pieces, the thread remaining in the socket and the rest(cap etc) breaking free. He's going to "show" it to me when I get in to collect it. Have to ring them in the next hour to see if they sourced new plugs for the bike.

I'm going to see what I'm charged for, then I'm going to name and shame. This is a bed of lies and deceit so far.

pajodublin

just a quick question sorry to hijack the thread
but my moped is misfiring too, usually only after a wet day
could it be wet plugs, any way to prevent in the future?

waraf

pajodublin wrote: »

just a quick question sorry to hijack the thread
but my moped is misfiring too, usually only after a wet day
could it be wet plugs, any way to prevent in the future?

This is quite common with mopeds. Check to see that the spark plug cap is making a good seal where it enters the top of the piston. I have also seen this caused by a broken/very short front mud guard or a missing piece of fairing which allowed water to get splashed up into places it would normally not go.

pajodublin

thanks waraf