'80 & '81 Honda 110 ATCs What should I do?

[rjcruiser]

I picked up these two 110s this past weekend. One is complete, the other mostly complete without the carb, points cover and air box.

The '81 that was complete, I was able to get running, but it smokes pretty bad. Also, it will need a carb rebuild/new carb as it won't idle. Wondering what I should do? I want it to be a pretty budget friendly restore, but want to get some power increases on it if I can. Want to keep it under $200. Just ordered the Clymer manual, and I have some tinkering experience, but not a ton.

Should I just rebuild the top half of the engine? Should I go with a 125 top end? Should I buy the kit from ebay? or just piece together a kit from dratv.com and have a machine shop bore out the head for the bigger cylinder? How much is too much boring out?

I appreciate any help and any ideas. Thanks,
RJ

[350x'inNY]

I picked up these two 110s this past weekend. One is complete, the other mostly complete without the carb, points cover and air box.

The '81 that was complete, I was able to get running, but it smokes pretty bad. Also, it will need a carb rebuild/new carb as it won't idle. Wondering what I should do? I want it to be a pretty budget friendly restore, but want to get some power increases on it if I can. Want to keep it under $200. Just ordered the Clymer manual, and I have some tinkering experience, but not a ton.

Should I just rebuild the top half of the engine? Should I go with a 125 top end? Should I buy the kit from ebay? or just piece together a kit from dratv.com and have a machine shop bore out the head for the bigger cylinder? How much is too much boring out?

I appreciate any help and any ideas. Thanks,
RJ

I'm a purist... so personally, I wouldn't mess around with the 125 top end/cylinder. Plus not sure as the later 125 had an electronic CDI instead of the early points and condenser. Anyhow... I love the 1980 with the old school round HL... looks like it has a aftermarket bracket on the front axle to lengthen the stance. Sweet. Keep that 80 together... not many of the older ones in that shape.

Bruce

[rjcruiser]

The '81 has the cdi, the '80 has the points. The '80 does have the fork extenders...gives it a higher stance. I guess keeping it stock will probably be the easiest and the cheapest.

How much do I have the machine shop bore out the head?

[thefox]

The head does not get bored out, the cylinder does. I don't know if you can bore a 110 cylinder out to make it into a 125. The 125 cylinder does not bolt up, you would need to have the cases bored out because the sleave is bigger (or so I have heard several times).