Nothing like posting indoor/outdoor open all weekend and not doing any prep at all. Outdoors they left from Saturday’s open practice so it was a rutted frozen pile of crap and indoors had pot holes all over the track. So worth 40 bucks.
Was replacing piston on my kx450 and when I pulled off the head the exhaust valves had yellow on them. The bike did start making this knocking/clapping Noise when it would first start to run. Any ideas?