ec300 fouling plugs after jetting

[ec300 dave]

Well thanks for all the advice guys I am awaiting delivery of a new needle and float valve( I noticed that both appear a little worn) hopefully that will remedy the problem along with resseting the float height im sure i read that it should be 16mm not 11mm anyway i need a little help with this does anybody have any tips on how to do it easily an what it should be? I took the bike out sunday (weighed down with a bumbag full of plugs ) did about 50 miles and it did not foul the plug I had a br8 standard plug instead of the usual eix i use could it be that my bike doesnt like the posher plug !

[Todd5774]

Mine will foul up the iex plug very easily, but then i can putput around all day on the br8 and never have a problem, i just use the cheap plugs now!

[ec300 dave]

Weird eh its notoften the solution to a problem is to use a cheaper item! I have just been doing a little bit of reading on the ngk website and it says the gaps aare set larger in the eix maybe this has somehing to do with it?

[Gassey fan]

i had same problem on my 07 so i dropped the needle 1 clip to 2nd from the bottom no problems now

[kendunn]

Originally Posted by ec300 dave

Thanks for all the helpful info guys will have a look at the float height but wouldnt I notice excess petrol comming out of the overflow if that was set too high? I think I'll also get a new needle just incase mine is worn ( would that cause it?). The bike is definately an EC even though it does have the wps on the front (not sure they did the xc in the uk) so I suppose its just a suck it an see sort of thing especially with the bike running so well. I'm ver happy with the bike in every other way it actually makes me look a far better faster rider than I am! Oh and thanks gasgasman for the vinegar tip I'll sure be trying that on the 8 fouled eix plugs i have.

His didn't overflow any fuel. Funny thing, my 300 would take spells where it would overflow when I stopped, but never fouled a plug. His seemed to be a problem when he went down a long downhill, it would flood out and his plug would foul. Since I lowered his float it has never done it again, and that has been months ago. I think it was a combo of the extra fuel getting into the cylinder and not being able to open up the throttle enough (steep downhills) to clear it out. I have also lowered my float and it doesn't overflow anymore. I had a little trouble jetting mine, but think I finally have it.