help!!!!

I just bought a 1973 Harley Davidson 90x mini bike i got the bike to run and it will switch gears up to second but when i switch it to third it bogs its self out does any one have an idea what it might be

i have a stock valve train on my 6.5 clone i want to put 1.3 stamped rockers with 18 pound springs what do i have to do to make them work? i have searched i still dont understand them :helpsmilie: an i going to have to :grind:

i got my west bend runnin and i found a frame for it , but i wanna do sumthin a lil differnt i wanna put a manual clutch on it, i have very limited space in the frame any one done this before, i need some help

I have a frame with 1/2 inch axle width.. i have some 5/8 bored bearings in my current rims for a 5/8 style axle.. Is there a 1/2 inch bearing that will fit the rim that i can switch too?? I have found 1/2 bearing online just want to make sure they will fit. Thanks

can someone please verify if the springs and retainers are in the correct place. thank you in advance, any help would be appreciated. [img]http://www.oldminibikes.com/forum/photopost/data/500/thumbs/DSCF11081.JPG[img] the intake pressure seems to be resoanable, but the exhaust has a alot of...

Hope you guys can help me ......... I had an older briggs flathead that ran ok but smoked and leaked oil, so I bought a raptor block,crank,piston and rings on ebay. The block is 30 over and lifter area is welded for strength, its also mildly ported and has pockets cut for valve springs. I used...

long story short my shop teacher was going to trough it away and i ask if i could have he said yes, but i have no clue if i have all of the parts or how to set it up so i was wondering if you guys could help out maybe post a couple pics to help me out, thanks

Ok my Tav-2 setup on my Genuine 5.5 Honda has given me sh1t from the start. When I first put everything together it looked normal and everything. Then once I started the engine it was HELL. I revved the engine and at around WOT (3600 rpms) the springs holding the weight together came apart and...