okay. so i have an 89 el tigre that im having major issues with. this is my little old mod sled that i decided to build. 40 mm carbs, twin pipes, 136 track, 30 overbore, all that. pushin about 110 horse give or take. im having MAJOR chain issues. 7 chains, 3 chaincases, and a front drive later, still breaking chains! ive tried different gear ratios ive gone from 92 mph gears all the way down to 60 mph gears, still to no avail. im getting pist! keep in mind this is the chaincase style with the two rollers and the spring between them. someone please help! im workin on my sled right now, so any help would be majorly appreciated.