Recent content by hondaracin339

ive come up with why ken may be right about the bore... conrod bearings on flywheel side are worse than clutch side. there looks to be more stress on cylinder on flywheel side as well...so i guess time for a bb kit haha. thanks for all you guys help!!!

wow i never thought about the bore being not true. hmm..well all the damage is in the big conrod bearing. no bluing, no discoloration at all. is there a way to check to see if the bore is straight?

i know i put the crank in good. this is bugging me to no end.

the cylinder and piston are good, and have survived two crank failures. still have crosshatching and all is good on top. i cut the current failed cranks conrod off to get a better look at the needle bearings, and wow. its almost like theres no oil getting in there and they just grind...

yeah i used the puller to pull it in most of the way. then used the bolts for the case in sequence to slowly push it in the rest of the way, then backed the bolts out a tad. had my buddy rotate the crank as i torqued down the case bolts, and spun beautifly the whole time.

haha no redneck tactics here. As far as i was told they were new oems. 230 a piece. I then figured out that i can get a hotrods for 100 less..so thats what i got now. damn stealerships

cleaned very thoroughly. took out tranny, all bearings, empty case. used a whole can of carb cleaner on each case half. same with the whole transmission. then repeated with my 32:1 mixture then blown dry with air hose. reassembled with all new bearings/seals. put straight klotz oil in every...

wait my bad first two were oem. the one i have now to put in is a hotrods..im an idiot haha. heres a couple pics of current progress. just case half you can see the bad crank (conrod can touch the main body) idk if u can make out the flatness of the needles

nope. top end is beautiful. both case sides are original

yeah the conrod bearings are flat on both failures. no heat discoloration. oil injector eliminated. running 32:1. a buddy asked about timing/detonation issues? timing has never been messed with and the shear key is good. i never use gas over a month old and get it from shell. these are not...

yep. the last two and this one.

hey guys new here. ive been trying to search this but found nothing.. im about to install my third crank in my bike with-in the past..idk 15 hours? both have failed the same way...the connecting rod bearings are flat..no heat marks, no other signs of improper fuel/oil mixture, this is a stock...