Nobody lists what theirs came off of and I am not versed enough to know just by looking what is and isn't a 4 speed.

Will any of these work?

Hi I have no spark on my 70ko , new battery , I checked the ignition coil seems ok now I guess gotta pull the fly wheel check ac generator. Any suggestions. I trying to learn about the electric side of bikes. Thanks KJ

Good evening everyone,

One of my CT70's leaks a bit of oil from the insertion point of the muffler exhaust and the front cylinder head. It of course smokes a little when the oil touches the exhaust when riding. I have retightened the two bolts that connect the exhaust into the cylinder head housing and it reduced the amount of oil leaking out a bunch, probably about 75% or so reduction. I am thinking I need to replace the gasket that fits into the cylinder head. Is there anything else I should be looking for, or doing, while I am working on this? Thanks for your help.

hey everyone!putting together a 1970 ct70HKO ,parting out the motor and was looking for a step by step or a exploded view of the 70cc.if anyone can help.thanks in advance.:103:

I was hoping someone could give me some advise on why my bike seems to have no power. I have a ct70 with a 88cc big bore kit, new valves, new exhaust, and a carburetor that I just spent $100 rebuilding and tuning for high altitude "original". I thought that would work and the guy who sent it to me had it on a test bike going 40 MPH!! The bike starts great but only has power when I open the choke. I have tried everything to get it to run and it will not even rev up unless the chock is opened up. When I ride it, the bike will go like 15 MPH. It seems to peg out and have no torque. It has no power but yet it has a new coil, spark plug, points and condenser, etc. I have completely restored the bike and can't get it to run right. I could really use some help trying to figure out the problem. Thanks. :102:

Hello - Help! (please) I have a CT70 engine that was bought 'cheap' for the bottom end; the top end is missing and the piston is stuck, stuck, stuck! I've tried soaking in PB blaster . . . I can get to the bottom of the piston (the cylinder moves with it) - nothing is freeing after weeks of soaking. I think the piston is junk and the cylinder would have to be rebored anyway so I'm ready to get more radical, but would like to save as many of the good parts as I can. I'm debating drilling holes in the top of the piston then using a cold chisel to tear it out piece by piece. Any ideas would be appreciated. Thanks.

Ok, I took my pipe off to paint it a few weeks ago, and it was tight getting it off the shock but I thought nothing of it. NOW when I am going to install it I cant get it to line up. when i put the header in the head and put the bolts on the mounting bolts dont line up. off a quarter of an inch. if i try to get it on the shock mount first I cant get the pipe in the head. and my pipe is old and was rusty, i really dont want to bend and pry much. . what gives.

Where is a good place to get the seats ground on a Z50 head? Where is a good place to buy valves and springs?Thanks, Baer

:yellow70:CAN SOMEONE TELL ME THE BEST WAY TO RESTORE RIMS? SANDBLAST THEM,THEN PAINT THEM WITH HONDA SILVER PAINT& CLEARCOAT?? OR POWDER COAT THEM???? THANKS FOR YOUR TIME.. TOM0762

So I bought this early ST50, The seat pan is perfect, no cracks or rust and is straight.cant tell if it is the same as a KO pan, has the shock arches and has the chrome buttons, its obvious the foam has a different contour, any ideas? also does anyone know much about these bikes? German model,helmet fenders, it had turnsignals on the end of the bars by the grips, CT90 style speedo in kph, round Stanley tailight, etc., any info would be appreciated.