My recently purchased 1987 Suzuki GS450L has an oli leak it seems at\nthe head gasket on one cylinder. The bike still runs but on my last\nride it took a mile or so before that cylinder would fire. The blue\nexhaust pipe would seem to indicate that cylinder is running hotter\nthan the other. This bike has only done 5k miles. Any ideas as to\nwhat the problem could be - blown head gasket or is there an oil ring\nthere that could be broken?