HondaCT90Owners

For owners and interested parties to discuss, share stories, and provide mechanical advice for the CT90 motorcycle. Other CTs welcome.

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Hardware Help - Headlight Assembly Screw?

Posted 29th Mar 2026u/MrSoup33

help identifying this strange noise.

Posted 11th Nov 2025u/michaelcerascum

Throttle sticks when handlebars are all the way turned left.

Posted 26th Sep 2025u/michaelcerascum

Posted 27th Jun 2025u/killer7rex

Drive sprocket locking up

Posted 9th Mar 2025u/Remarkable-Spirit-47

B double E double R-U-N

Posted 7th Oct 2024u/Tuuubbs

What did I fry?

Posted 17th Sep 2024u/WorldDisastrous6438

Zongshen 212cc swapped '76 ct90

Posted 25th Aug 2024u/pirate_leprechaun

Posted 21st Aug 2024u/WorldDisastrous6438

Assistance requested

Posted 9th Jul 2024u/Happy-Lie-84

Posted 10th Jun 2024u/pirate_leprechaun

Project update: refurbished valves & seats

Posted 8th Jun 2024u/MistahJ_91

Cylinder head locating dowels and o-rings

Posted 1st Jun 2024u/Happy-Lie-84

Exhaust Install Advice

Posted 20th May 2024u/RideOrPie

Honda ct90 won’t start

Posted 16th Apr 2024u/Frankenfarters

Just got a 77 CT90

Posted 23rd Mar 2024u/Riley_Martin_100

68 almost finished

Posted 22nd Sep 2023u/WorldDisastrous6438

Has anyone run across one of these?

Posted 26th Aug 2023u/ohitsjeffagain

Me and my brothers ct’s (the yellow one is a 1971 and the red one is 1974)

Posted 19th Mar 2023u/yomama2233

Is this a normal amount of distance for the slide to be from the bottom. I feel like I don’t get a lot of adjustment with my idle screw. This is on a 68 CT90. Original Carb.

Posted 23rd Feb 2023u/_DayBowBow

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