Hello Gurus,
Cracked open an old Suzuki sled engine and thought I had found the problem with it. Overheated crank pins as visible here
Then a closer look showed no such discoloration on the needles. ¨Could´ve rubbed off¨ I thought.
Next, once the crank was out, a better look overall showed...
2004 RM 250 running hot.
8 months back I rebuilt the top end with a Wisco pistion kit. The bike ran hot for a while and then seemed to break in and cool down a bit. It seems to be back up recently. The symptoms are uneven reving (pinging) and then after that it runs off...looong reving. I...