Weird jetting!

[muddertrucker]

So last time I rode i noticed a change in engine sound near the the end of the ride. The idle was also hanging a bit when i would let off the throtle. Put the bike away till this week. It started on first kick then died. Started on 2nd kick but you could tell something was going on and then died. No more starting! Changed the plug and started 1st kick.

This has happened to me 4 times in the last year and I doubt i i've put over 300 km on the bike in that year. What else could cause plugs to suddenly crap out (other than rich jetting)?

I also got a crap load of jets in the mail the other day. Every main between 165 and 185 plus a 40 pj. After changing the plug I tried the 165 main (from the previous 145) and noticed that the bike could easily lift the front Wheel at low RPM's compared to before. This was only a short test around my house with a cold engine but I liked the feeling and am looking forward to trying it out in a full ride.