Hi.
Recently bought a 1992 CR250 which I use on weekends for track work but mostly woods riding.
I don't know too much history about the bike, but know it has a new cylinder & new electrics.
It also has an FMF (gold series) pipe.
Bike is great, I love it & it starts on the 3rd kick from cold everytime & is so easy to start
when hot it's untrue, but I had a problem this weekend that I hope you lot can shed some light on.
Bike was running great all sunday, me & some mates were riding up & down some really tricky hills & we had to lay our bikes down quite a few times due to the steepness & our inabillity to ride up them!
Got halfway up a hill, came unstuck & had to lay it down again, but kept the motor running. Dragged
the bike round, got back on & rode down, but the motor then died, fired then died again. We towed it to try & restart it, but it was a no go.
Got it back home & found no spark from the plug, but lots of juice from the lead (got a big shock!)
Put my mates plug in & it fired 1st time. Is it normal for a plug to fail just like that? It looked fine in it's appearance (not melted etc) if a little dark, but nothing untoward.
Plug is an NGK B8EG. I have ordered a new NGK B9EG (higher heat range) as recommended by my dealer in the hope that it won't fail as dramatically again so far from home!
So tell me, is it the plug & it's normal, or have I other issues?
Cheers in advance,
Gwaredd (UK)