Author Topic: CB77 305 Super Hawk project (Read 5863 times)

allankelly1 · « **on:** April 05, 2026, 09:11:09 PM »

Hi all

Just inherited a little CB77

Plan is while restoring the CB400F Hailwood replica will be fullly restoring this little CB77 with my son in parallel.

First job for us tonight was to have a peek inside the tank as bike has sat for +10 years.

Not so good as stunk of stale fuel and red rust.

We are going to see if it’s superficial but if it is beyond repair luckily we found a spare tank tucked away with stacks of other CB77 spares in the back of my late dad’s garage.

Bike has good compression, so next steps is a full carb strip and rebuild then after a few checks together we will see if the old girl will fire up with fresh fuel via a remote tank and rebuilt carbs.

In all it’s a nice project as bike is fitted with genuine Honda clip on bars and rearsets and a nice father and son bonding activity.

Will update with posts as we progress with the restoration.

Best wishes Al.

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Johnwebley · « **Reply #1 on:** April 05, 2026, 09:20:32 PM »

I remember those in the 60s

Superb bikes

Have fun

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McCabe-Thiele (Ted) · « **Reply #2 on:** April 05, 2026, 09:22:05 PM »

Iirc the 305 has a 180 Deg crank, as a result two firing strokes are closer together so it never sounds as if it's revving as fast as it actually is.

Murf · « **Reply #3 on:** April 05, 2026, 10:29:29 PM »

Great bike, I had a 1964 CB 72 250 back in the day, (the CB77 is same bike bored to 305cc), I bought it around 1966 from Ben Lloyd’s in Crosby Liverpool where I am from. I was in the Royal Navy and used it as weekend transport between Portsmouth and home when I wasn’t at sea, it never let me down or missed a beat, I loved that bike. I replaced it with a 1966 Triumph Bonneville about 3 years later because I wanted something faster, it was fast but only when it was running which wasn’t very often, learned my lesson and stuck with Japanese bikes after that.
Good luck with the recommission and enjoy the bike.

allankelly1 · « **Reply #4 on:** April 05, 2026, 10:32:16 PM »

Quote from: Murf on April 05, 2026, 10:29:29 PM

Great bike, I had a 1964 CB 72 250 back in the day, (the CB77 is same bike bored to 305cc), I bought it around 1966 from Ben Lloyd’s in Crosby Liverpool where I am from. I was in the Royal Navy and used it as weekend transport between Portsmouth and home when I wasn’t at sea, it never let me down or missed a beat, I loved that bike. I replaced it with a 1966 Triumph Bonneville about 3 years later because I wanted something faster, it was fast but only when it was running which wasn’t very often, learned my lesson and stuck with Japanese bikes after that.
Good luck with the recommission and enjoy the bike.

Yes one thing that amazed me is it’s got 12v electrics and an electric starter on a bike that is 60 years old

No wonder the Japs cornered the bike market

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Spitfire · « **Reply #5 on:** April 06, 2026, 09:39:40 AM »

My cousin Rob had a CB72 and at the time it was my dream bike, at the time I had an AJS 250 (Saphire Sports?)
Sadly I never owned one, I stuck with Brit bikes until I got a Yamaha 80 which completely changed my mind about Brit v Jap bikes.

Cheers

Dennis

McCabe-Thiele (Ted) · « **Reply #6 on:** April 06, 2026, 10:40:35 AM »

I owned a standard 250 Dream that I later replaced with the Super Sport version.
If Im honest the standard Dream (squareish headlamp) was a much easier ride, with the 250 Super Sport version I was forever changing down a gear or even two gears if there was a headwind. My mates 305 did seem to pull better, he was always infront of me on a ride out.