Help Deciphering Spark Plug Type on 1962 model.

[Mucci]

Hi,

I'm having trouble finding the correct spark plug type for the bike I'm rebuilding.

The motor is a 1962 model. VIN: CA95E - 2101798

According to the manual:
"Plug type C10H - size 10x12.7" - this is the only plug type listed for a CA95 in this manual.

According to NGK:
"There are actually two totally different plug listings for your 1962 CA95 bike: D8HA #7112 (for 1966-1962) or R0161-10 #4778 (for 1962-1959)"

Can someone help clarify this? Thanks!
-Dave

[Hoosier Tom]

Some of Early Hondas used a 10mm spark plug in their head design. Later they went to a 12mm. C= a 10mm plug base and D= a 12mm plug base. Measure your plug hole.

HT

[Mucci]

Some of Early Hondas used a 10mm spark plug in their head design. Later they went to a 12mm. C= a 10mm plug base and D= a 12mm plug base. Measure your plug hole.

HT

Great, thanks for the info.