Author Topic: 1969 Honda Cub 90 (CM91) - Almost Done (hopefully) (Read 16420 times)

CBJoe · « **on:** August 24, 2017, 04:07:15 PM »

Going to look at a 1969 Honda Cub 90 that has a clean Title and is in Running Condition (who knows how well

).

Comes with an extra cylinder head and carb. $700

This is right up our alley and is something I've been keeping an eye for a while now. Will probably be an intro machine for my wife to use while we work to rebuild her Superhawk. She's a new rider.

Any nay say about this machine or the price?

Cheers, Joe

Gene · « **Reply #1 on:** August 24, 2017, 04:20:30 PM »

It's cuter then h*ck. I don't know much about them but we're hunting for like a 125 for Dina. Been running across prices similar in range.

Two foot brakes?

CBJoe · « **Reply #2 on:** August 24, 2017, 04:28:27 PM »

Quote from: Gene on August 24, 2017, 04:20:30 PM

It's cuter then h*ck. I don't know much about them but we're hunting for like a 125 for Dina. Been running across prices similar in range.

Two foot brakes?

Rose shares the sentiment

This would technically be her's for around town as the little sister to her SuperHawk.

I think the left peddle has to do with the Semi-Auto Clutch. Reading up on it now as I know nothing about these machines.

Joe

jas67 · « **Reply #3 on:** August 24, 2017, 05:23:08 PM »

The left pedal is the shifter, works just like any normal manual motorcycle, except for it automatically disengages the clutch as it shifts.

Also, the shift pattern on most of these step-throughs is backwards of "normal". Pressing the lever down (toe) is up shift, up (or down the heal) is down shift.

CBJoe · « **Reply #4 on:** August 24, 2017, 05:57:16 PM »

Quote from: jas67 on August 24, 2017, 05:23:08 PM

The left pedal is the shifter, works just like any normal manual motorcycle, except for it automatically disengages the clutch as it shifts.

Also, the shift pattern on most of these step-throughs is backwards of "normal". Pressing the lever down (toe) is up shift, up (or down the heal) is down shift.

Thanks for that insight! That will help me not look like an idiot when I test drive it tomorrow

jas67 · « **Reply #5 on:** August 24, 2017, 06:07:00 PM »

You're welcome.

CT70's (Trail 70) are the same, though, the later ones have a normal shift pattern (my '91 did, so, 91-94 definitely did). IIRC, I recall reading that sometime in the early 80's the CT90 got a normal shift pattern too, so, maybe the later cubs did as well. The 69 definitely doesn't.

My Guzzi Eldorado, which will be on the road soon also has the reversed shift pattern -- should be interesting, though, if I can ride my Ducati 250 Monza that has that shift pattern, AND, on the right side of the bike, I should be OK.

MoMo · « **Reply #6 on:** August 24, 2017, 06:11:40 PM »

Looks as though it is in decent condition, and the price is right. Very simple to work on btw....Larry

scottly · « **Reply #7 on:** August 24, 2017, 06:21:43 PM »

I don't think I've heard of a Cub 90 before? It looks like a combination of a C200 front end, low exhaust, and dual seat with a CT200 Trail 90 step-frame and automatic clutch, and the leg guard from a Cub 50 thrown in for good measure. I have the Honda shop manual that covers the C200 and CT200, and can scan any pages you may need.

CBJoe · « **Reply #8 on:** August 24, 2017, 08:03:30 PM »

Quote from: scottly on August 24, 2017, 06:21:43 PM

I don't think I've heard of a Cub 90 before? It looks like a combination of a C200 front end, low exhaust, and dual seat with a CT200 Trail 90 step-frame and automatic clutch, and the leg guard from a Cub 50 thrown in for good measure. I have the Honda shop manual that covers the C200 and CT200, and can scan any pages you may need.

Hey Scott....I think the designation is a Honda Super Cub 90 or "C90". I'll post more pics/info once i get it home.

scottly · « **Reply #9 on:** August 24, 2017, 08:15:39 PM »

The first Honda I ever rode was a CT200, circa 1965. The first Honda I owned was a C200, circa 1968.

jgger · « **Reply #10 on:** August 24, 2017, 08:19:19 PM »

Don't try to pull the left handle for a clutch.......it will apply the rear brake IIRC.

jgger · « **Reply #11 on:** August 24, 2017, 08:22:49 PM »

Dang Scottly, my first motorcycle to was a C200 also1964 (I think). Rode the snot outta that thing and never a lick of trouble.

CBJoe · « **Reply #12 on:** August 24, 2017, 08:39:53 PM »

Quote from: jgger on August 24, 2017, 08:19:19 PM

Don't try to pull the left handle for a clutch.......it will apply the rear brake IIRC.

Looks like no clutch on this one (auto-clutch)...only right handle front brake.

jgger · « **Reply #13 on:** August 24, 2017, 09:00:52 PM »

Well I'll be dipped, you're right Joe. I was thinking it was like the Trail 90's, my bad for not looking at the pic a bit closer.

scottly · « **Reply #14 on:** August 24, 2017, 09:08:06 PM »

My C200 was a 1966 model. I paid $200 for it, and beat the poor thing to death, but it always ran, which could not be said for my buddy's Suzuki 80 of the same year.

I first learned to MIG weld repairing cracks in the stamped sheet-metal frame, swing-arm, and front forks.

CBJoe · « **Reply #15 on:** August 25, 2017, 08:04:43 PM »

Picked up the Cub tonight. Best I can tell it's official model designation is a CM91. All in all it's mostly there except for the Carb.

Has some Keihin knock off with a silly wooden spacer. Original carbs aren't cheap or easy to find. Trying to decide if I'm just going to try a Mikuni VM20 or something.

Sent from my iPhone using Tapatalk

MoMo · « **Reply #16 on:** August 25, 2017, 08:59:08 PM »

Fairly scarce bike you bought, most all were abused beyond belief-all the plastics were mutilated. Good luck with it....Larry

CBJoe · « **Reply #17 on:** August 25, 2017, 09:06:19 PM »

Quote from: MoMo on August 25, 2017, 08:59:08 PM

Fairly scarce bike you bought, most all were abused beyond belief-all the plastics were mutilated. Good luck with it....Larry

Funny...and I thought I was buying something with tons off parts around

You called it as well...the fairing has a crack in it.

RAFster122s · « **Reply #18 on:** August 28, 2017, 11:16:55 AM »

DrATV can be your new best friend. He also sells on ebay sometimes at list of website but with free shipping usually.

David

CBJoe · « **Reply #19 on:** September 03, 2017, 05:01:23 PM »

Many Parts ordered

- Mikuni 19mm Carb with rotating intake adapter to allow for frame clearance. 2-1 Remote Petcock.
- Repro Leg Shield (original cracked but ok for general use)
- new Black and White Seat
- Tons of OEM Honda Gaskets, seals, and such
- New grooved brake shoes, Sealed Battery, wheel bearings, Drive Chain, fuel Line, Footpeg rubbers, etc..

Very likely going to send the Block to DrATV for their Big Bore Cylinder Job (bored with new piston, rings, gasket).

Cant wait...should be a fun bike and a great learner for rose while we get her CB77 going.

Joe

tbpmusic · « **Reply #20 on:** September 03, 2017, 05:27:36 PM »

Shift pattern on my Cub is all the way up for neutral, down for the three speeds......

CBJoe · « **Reply #21 on:** September 03, 2017, 06:00:39 PM »

Quote from: tbpmusic on September 03, 2017, 05:27:36 PM

Shift pattern on my Cub is all the way up for neutral, down for the three speeds......

I think this one is all the way up for 1st...down half a click ish' for neurtal....then down for 2/3

RAFster122s · « **Reply #22 on:** September 04, 2017, 08:36:18 PM »

If the DrATV cam for S90 motor fits, definitely buy and install, well worth the money.
David

CBJoe · « **Reply #23 on:** September 05, 2017, 04:30:18 AM »

Quote from: RAF122S on September 04, 2017, 08:36:18 PM

If the DrATV cam for S90 motor fits, definitely buy and install, well worth the money.
David

It does

b52bombardier1 · « **Reply #24 on:** September 05, 2017, 05:07:10 AM »

On my ST90 engine with the high performance Dr ATV cam, I needed to up the size of the main jet to about a 76. It was running quite lean with the stock 68 main in it. Overall, that cam and the bigger main jet only gave me maybe 2 mph of an increase in top speed so don't expect miracles.

Rick

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Author Topic: 1969 Honda Cub 90 (CM91) - Almost Done (hopefully) (Read 16420 times)