Author Topic: K1 CT70 (Read 6746 times)

tweakin · « **on:** October 22, 2016, 06:40:17 AM »

I have been wanting to get a few smaller bore Hondas for some time. Picked up a K1 CT90 and put a clone 140 engine in it and then found a K1 CT70. Here is the CT70 the day I picked it up and a look at the fresh paint. Plan was to clean up the bike and keep it as is but that changed quickly. When cleaning it up noticed a significant oil leak from where the engine cases join. Thats when I decided to do a complete restomod on the bike.

Rebuilt front suspension, new heavy duty rear shocks, tapered steering bearings and new wire harness.

Had Nils vapor blast the engine cases, turned out great.

Rebuilt the wheels and got it back to a roller. Powdercoated hubs, polished brake carriers, sealed bearings, new seals and brakes.

Engine rebuild, 88cc with race head, race cam, high volume oil pump and HD clutch.

Engine back in the frame and oil cooler installed.

HondaMan · « **Reply #1 on:** October 22, 2016, 07:02:51 PM »

Wow! This must be the fanciest CT70 ever!
I've rebuilt a half-dozen of them (and enjoyed each one), but they didn't look like this baby!

MoMo · « **Reply #2 on:** October 22, 2016, 08:00:34 PM »

cool bike, excellent job! ...Larry

grcamna2 · « **Reply #3 on:** October 22, 2016, 08:30:34 PM »

Love your little red restored vintage CT70 w/ the hop-up mods !

brings back the old days

tweakin · « **Reply #4 on:** October 23, 2016, 05:52:22 AM »

Thanks gentlemen^^^ After building a few 750's I wanted to build a small bore Honda and always wanted a ct70 since riding them as a kid. These little bikes are a blast to build and are significantly less expensive to do so.

NobleHops · « **Reply #5 on:** October 23, 2016, 06:03:27 AM »

Haha! I have a couple of them squirreled away here too. Love those things.

Your projects always kick ass Tige, this one included. Thanks for including me.

N.

b52bombardier1 · « **Reply #6 on:** October 23, 2016, 07:22:46 AM »

Excellent. Very nice job. It was the small bikes that got me started in this crazy hobby.

Rick

Sent from my SAMSUNG-SM-N900A using Tapatalk

Bankerdanny · « **Reply #7 on:** October 24, 2016, 02:30:55 PM »

Every time I am at my sister's house working on my bike my 11 year old nephew never fails to mention how much he REALLY wants a motorcycle. Every now and then I see one of these for sale and think I should pick one up.

grcamna2 · « **Reply #8 on:** October 24, 2016, 02:52:03 PM »

Quote from: tweakin on October 23, 2016, 05:52:22 AM

Thanks gentlemen^^^ After building a few 750's I wanted to build a small bore Honda and always wanted a ct70 since riding them as a kid. These little bikes are a blast to build and are significantly less expensive to do so.

Have you started it and taken it out yet ?

use2b · « **Reply #9 on:** October 24, 2016, 03:06:50 PM »

Just took a look at your other builds and Wow --- the Turd turned out way better than New.

worked on my Squealing K6 front brakes all day today with no luck !

Stev-o · « **Reply #10 on:** October 24, 2016, 04:32:19 PM »

Great job! But the question is, will you let the kids ride it? [and damage it!]

MoMo · « **Reply #11 on:** October 24, 2016, 04:50:28 PM »

Quote from: Bankerdanny on October 24, 2016, 02:30:55 PM

Every time I am at my sister's house working on my bike my 11 year old nephew never fails to mention how much he REALLY wants a motorcycle. Every now and then I see one of these for sale and think I should pick one up.

Do it BD as long as the parents agree that is...Larry

tweakin · « **Reply #12 on:** October 25, 2016, 05:44:08 AM »

Not yet, waiting on the correct HD clutch kit before I can button it up. I can't wait ti get this thing running.

Quote from: grcamna2 on October 24, 2016, 02:52:03 PM

Quote from: tweakin on October 23, 2016, 05:52:22 AM
Thanks gentlemen^^^ After building a few 750's I wanted to build a small bore Honda and always wanted a ct70 since riding them as a kid. These little bikes are a blast to build and are significantly less expensive to do so.

Have you started it and taken it out yet ?

tweakin · « **Reply #13 on:** October 25, 2016, 05:45:14 AM »

Initially the plan was letting the girls ride it but as the project has progressed more than likely it will be a "dad" only bike, ha.

Quote from: Stev-o on October 24, 2016, 04:32:19 PM

Great job! But the question is, will you let the kids ride it? [and damage it!]

calj737 · « **Reply #14 on:** October 25, 2016, 05:58:55 AM »

You're the original Mad Man, Tweakin'! You could turn chicken #$%*e into chicken salad within your garage. Can't believe how appealing you make these little trailbikes to a bunch of speed freaks and garage builders. (Deep bow and hat removed to you)

tweakin · « **Reply #15 on:** October 25, 2016, 06:15:24 AM »

Thanks calj737, these small bore bikes are a blast.

Quote from: calj737 on October 25, 2016, 05:58:55 AM

You're the original Mad Man, Tweakin'! You could turn chicken #$%*e into chicken salad within your garage. Can't believe how appealing you make these little trailbikes to a bunch of speed freaks and garage builders. (Deep bow and hat removed to you)

Bankerdanny · « **Reply #16 on:** October 25, 2016, 11:51:03 AM »

Quote from: MoMo on October 24, 2016, 04:50:28 PM

Quote from: Bankerdanny on October 24, 2016, 02:30:55 PM
Every time I am at my sister's house working on my bike my 11 year old nephew never fails to mention how much he REALLY wants a motorcycle. Every now and then I see one of these for sale and think I should pick one up.

His dad had a souped up Harley when he and my sister got together a few years ago, but he sold it for the down payment on their house. I don't think he would have any issues, I'm not so sure about his ex-wife (technically this is my step-nephew). In the end I think they would be OK with a small bike like this.

Do it BD as long as the parents agree that is...Larry

tweakin · « **Reply #17 on:** October 29, 2016, 07:53:05 PM »

Still some fine tuning and a few minor changes, but the K1 is done. Next I really want to do a full restoration of an early H.

grcamna2 · « **Reply #18 on:** October 29, 2016, 08:32:04 PM »

You could probably change this one over to an 'H' 4 spd. standard clutch and w/ the mods you do could probably get it running 65+

754 · « **Reply #19 on:** October 29, 2016, 09:45:59 PM »

Pffft..it should do 65 as it sits.. I know a guy has a big collection of these and 50,s..he has a 190 4 valve in a CT70 rides it on the street... It really barks when he cracks the throttle..

tweakin · « **Reply #20 on:** October 29, 2016, 09:48:38 PM »

Quote from: grcamna2 on October 29, 2016, 08:32:04 PM

You could probably change this one over to an 'H' 4 spd. standard clutch and w/ the mods you do could probably get it running 65+

No 4 speed for this bike, next build will be a H bike.

grcamna2 · « **Reply #21 on:** October 29, 2016, 10:43:14 PM »

Quote from: tweakin on October 29, 2016, 09:48:38 PM

Quote from: grcamna2 on October 29, 2016, 08:32:04 PM
You could probably change this one over to an 'H' 4 spd. standard clutch and w/ the mods you do could probably get it running 65+

No 4 speed for this bike, next build will be a H bike.

This present K1 w/ it's auto-clutch would be perfect for taking the MC license road test.

What fuel tank and fuel valve do you have on it now ? Stock tank w/ remote fuel valve ?

HondaMan · « **Reply #22 on:** November 06, 2016, 06:22:39 PM »

Quote from: 754 on October 29, 2016, 09:45:59 PM

Pffft..it should do 65 as it sits.. I know a guy has a big collection of these and 50,s..he has a 190 4 valve in a CT70 rides it on the street... It really barks when he cracks the throttle..

Now you're makin' me want to cafe' one...

RAFster122s · « **Reply #23 on:** November 06, 2016, 09:46:02 PM »

Tige, where did you pick up the head and cylinder kits? DrATV or some of the many other places? The S90 makes a very nice cafe bike and not a huge amount of work to make it look fabulous as its stock form is very nice to start.
A 140cc motor, new front forks or shocks and brakes to bring it down from speed.
The IRC NR53s are good tires as well.

tweakin · « **Reply #24 on:** November 07, 2016, 06:25:57 AM »

All engine parts are trailbuddy, I usually purchase most CT parts from https://tboltusa.com/ or https://www.chpmotorsports.com/honda/years/

News:

Author Topic: K1 CT70 (Read 6746 times)