G'day Norm, Gadge and Mowerfreak.
No stockpile scenario here.
I believe Victa worked to a
deliberate marketing plan.
How long until all full cranks were 160?
Recent research I conducted seems to indicate this:-
The demise of the 125cc occurred in 1977 prior to the 1977-78 range year.The evidence and the logic support this.
Victa's 2-stroke range would have included 5 variants without the demise
of the 125cc.
In late 1977 (for the 1978 year) Victa introduced a new small engine -
the
85cc 'half-twin' used on the Lightweight and Compact lawnmowers.
The line-up would be: 160cc Power Torque, 160cc full-crank, 170cc Twin cylinder,
and 85cc single. The 125cc had to go; given that Victa would concentrate upon
just one engine - the 160cc half-crank - within just a couple of years.
Also note that the imperial reel mower were dropped in 1977,
a user of the 125cc.
The 125cc - Victa's original engine - would be no more.
The rest is history.-------------------------------------
Jack