Hi all my fe400 stopped the other day and i am unable to get it going again all that i can see is that the spark from the plug is very small and some times not there. I have a 5K ohms resistor cap and a standard NKG DCPR8E plug i know the plug is right should i have a resistor cap like this on this bike? Is there anything i should be checking that i'm not aware of as i'm a newbie with berg's any help would be very welcome.