8th Oct 2008, 14:19

I have a neighbor who has had the bike for a while... it's pretty much in mint condition. He's giving it to me for free!!! I'm very excited from what your comments are saying... this is a great bike.

I know Hondas are the best out there. I have a 2006 CRF100 and a 2004 CRF 230, they are both amazing bikes.

But please keep checking this webpage because I'm not sure if I'll have any problems with it. If I do... I will come here and ask. Thanks everyone :)

8th Oct 2008, 18:32

DO you all think it is worth changing my 74 CT90 from 6volt to 12 volt? I am going to try to rebuild it, and it needs all new lights, and a battery and wiring, and I figured this would be the time. If so, let me know where you might think I should start?

14th Oct 2008, 00:45

I am looking at a CT90 K1 1969 for $550 with a title. The seller says it was running until he replaced the gaskets, there is an oil leak near the final drive sprocket. Is this very hard to fix?

Also, what would it take to put blinkers on it? It's a 6v system that did not come stock with blinkers.

Other than that, it seems to be a complete Honda in good condition, around 3000 miles on it.



16th Oct 2008, 13:09

I have a '79 CT90 with 543 original miles. It has always been garaged and is in perfect condition. That is the problem. I don't really want to ride it much because it is in such great condition with so few miles. We use it to ride the mile to our mail box once in a while, but I doubt I'll ever really ride it the way in which it was intended. Maybe I'll have to get another to have fun with. Great bikes!

23rd Oct 2008, 14:59

My '77 CT90 is stock and I'd like to keep it that way. I'd sure love to pick up another one just to do some insane mods: 125cc Lifan engine upgrade, Supertrap, Larger tank and a complete O.D. green paint job. The ultimate back woods bike!

27th Oct 2008, 21:51

I bought a 1970 CT90. Don't know what I did to make it start without a battery.. when I bought it, the wiring was all disconnected and had no lights on the bike.. I put a old dead 6 volt battery in it and hooked up a few wires and had the charger on the bike.. Fired right up, and as I looked down I noticed the battery connections fell off and I left the battery out.. I can't believe the bike runs without the battery... any ideas anybody.. Dave.

17th Nov 2008, 15:13

I read above of someone who bought a rectifier from radio shack? I have a 69 that has the same problem; of lights go dim and engine dies out. Any info of what the Radio Shack part number is for the rectifier?



19th Nov 2008, 08:40

Honda CT90. The Radio Shack rectifier part number is #276 1185. Cost is about $3.50. Be prepared to install new connectors on your wires. Al.

28th Nov 2008, 20:52

Hi all.

My father in law left a 1969 CT90 to my sons. He never got to finish the restoration project before he passed on. Can anyone tell me where to get a good manual to put it all back together? I think I have almost everything... just pieces everywhere. Should be a fun project for me and my boys.



25th Mar 2009, 10:33

Can anyone tell me where the rectifier is located on a 70 trail bike 90? Thanks.

1st May 2009, 18:47

The rectifier is located in the hollow area behind the battery. (You'll need to remove the battery mounting-plate-thingy) You'll also need to take the air cleaner box on the opposite side of the bike to access the rectifier mounting nut and washer.

5th May 2009, 16:48


I'm looking for advice on this issue. I have a Honda Trail 90, 1968, that I just got and am trying to fix up. One issue is that the engine runs good when the head light is "off" or on "Low", but the engine dies immediately when the "HIGH" light is switched "on". The rectifier was recently replaced and I double checked it with a meter - working fine. If anyone can help, I would appreciate it.



12th May 2009, 00:58

I just bought a 1976 CT 90 and love this bike!

I had to redo the electrical system a little to bring the horn and turn signals back to life. A new spark plug and oil change and this baby fires right up.

Only issue is that the top speed on my bike seems to be ~35mph... I did get it going 40mph down a very steep hill, but that was with the throttle wide open and after waiting for gravity to kick in. I hear that its top speed on a flat road should be ~45-55mph. Any ideas on how I can breathe some mph back into my bike? I would like a little bit faster top speed. Any advice is appreciated, thanks!

13th May 2009, 01:13

I recently found my grandfathers Honda CT90. My grandfather parked the bike in the shed still going over 20 years ago. The battery is stuffed, the tires need replacing, the spark plug is probably stuffed and the bike needs cleaning. Other than that I don't know what sort of condition it is in.

I am thinking of getting it professionally restored. How much would this cost, as an estimate?

Or is this bike simple enough that somebody with nothing beyond basic mechanical knowledge could fix?

13th May 2009, 01:32

I'm looking to get a CT.. but not sure if I should go 110 or a 90. Which year / size CT is my best bet? Blessings.

23rd Jun 2009, 11:01

I bought a 1976 Honda CT-90 a few weeks ago and love it. I grew up on the trail 110's back home on our farm in Washington State so they hold some sentimental value to me. Great bikes! I feel like my bike is bogging out a little bit coming out of neutral into first gear and then even into second gear out of first. I only weigh about 205 lbs. so I would think it should have some torque right out of neutral, but I find myself coming out of stop signs really pushing with my legs to get it going. Once I'm running we're good, but it's the initial start up I'm having problems with... accelerating. I give it gas and it feels like it wants to kill unless I let off the gas and really ease into it, I mean really ease into it. I just remember our 110's pulling me around pretty darn well. Is it the 90cc to 110cc power margin that has me confused or is there something that is causing me to bog down in 1st? Any suggestions? Is this just what I need to expect with a CT-90? The bike is in mint condition and only has 1400 miles on it. Are there adjustments I can make? Thanks for any help.

13th Jul 2009, 23:57

I have a 1975 Honda CT 90 Trail - Model CT90K6. Sometimes it will start on the first kick and sometimes there will be no compression on the kick starter. I have to keep working the kick starter until compression comes and then it will start. Does anyone have any ideas as to what might be causing this problem?