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Latest Registry Entry
1965 Honda CP77 — Ulsan Metro City, Rep. Korea
Restored with original parts — Owner: J. Doe

1967 Honda 305 Dream

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Royster
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Joined: Sun Sep 01, 2024 11:15 am

1967 Honda 305 Dream

Post by Royster » Fri Dec 05, 2025 11:43 am

Hello, I'm looking for information on which spark plugs to use. I have what Mr Honda say's is probably a 1967 Dream survivor in mint condition. Any information would be helpful and appreciated.
Serial Numbers
Frame - CA78-1034066
Engine - CA77E-1034128
Attachments
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deuce_7
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Joined: Sun Mar 18, 2018 10:36 pm
Location: California Central Coast

Re: 1967 Honda 305 Dream

Post by deuce_7 » Sat Dec 06, 2025 12:10 pm

1965 CA77 Owner's Manual calls for NGK D6HW spark plugs. Today, the closest match would be NGK D6HA.

NGK D8HA (colder) plugs are spec'd for CL and CB 305s. Would likely be OK for CA77 too.

Here's an early Honda 305 Forum thread; "Seeking the truth about Dream spark plugs:"
viewtopic.php?t=7582
1967 CL77 305 Scrambler

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Michael Stoic
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Location: Boston | USA
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Re: 1967 Honda 305 Dream

Post by Michael Stoic » Sun Dec 07, 2025 1:48 pm

What a nice looking Dream, Royster!

Please add it to the Dream Registry www.honda305.com/dream/registry

On spark plugs, I would only add that if you find yourself testing various crossover numbers, be sure that the plug itself is the 'non resistor' type. On these early bikes (and not only on Honda) the cap offers the resistance and a resistor plug in series would degrade the spark.

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