buddy has a 1981 atc 110 he wants 50 bucks for,will its engine fit in my atc 70? If so what needs to be modified to make it work?

camshaw,

Here are a few links I have come across about the install that should answer most of your questions.

http://www.glamisdunes.com/invision/index....mp;hl=honda+110
http://www.glamisdunes.com/invision/index....=111559&hl=
http://www.glamisdunes.com/invision/index....mp;hl=honda+110

Bustin B's and Troy Krum did this and their bikes are sweet!!!!!

PM them, I am sure they will point you in the right direction!

We did that very thing, only it was 14 years ago! Talk about being before the atc70 craze started! LOL. These are old photos! Back in 1996 you could go to the local honda shop & order oem tanks, seats, fenders, forks!
Check it out!

sweet! those look like fun

Probably the easiest motor swap known to man...

perfect fit looks stock, like that motor belongs in that frame..

Click to view attachment

Ya here's a few pics of mine. I had a lot of help from Poule43, Bustin-B's and TroyKrum. Thanks again fellas

Hey Tony how does it do with those paddles?

EEEHHHHHH... not like I expected. Idk, I think I might need to rebuild the carb or at least re-jet it. I switched to knobbies and runs good on asphalt so I'ma try that in the sand.

Compression helps! I would also revised the exhaust system, i know these are two things that i am looking at with mine. 110 runs pretty quick compared to mine, my thought is to freshen the top end up on mine to gain the power back...

Is it that one on craigslist in Bonita?

ya but how much would freshening up the top end cost me? and how would you revise the exhaust? I kinda made mine out of 3 different exhausts with minimal bends and seems to sound good.

Top end work isnt that pricey, as for the exhaust go larger IO and i would look into a a sterdy muffler. Just me, i am thinking of going that route.

I'm thinking if I do a top end... ima go BIG!!! I'd probably need a bigger carb. Would you know how to accomplish that? maybe if they make aftermarket ones or punching out the stock carb

Run it like it is so I can still beat you

That's why b's is still not done

I think you are think to hard on this, do the top end look at having the jets drilled out to meet the top end job. redo the exhaust and start looking at the gears. From there you can look at intakes air filter, if you need more then look at the carb if needed.
JMO