Hi beachhouse.
Time for you to start the starter search yourself.
The first thing you will need is the Yanmar part number.
Not just that it fits a YSM 8.
Once you have that number start searching for the Hitachi equivalent part number.
Then once you have the Hitachi number start looking for what make and model
s car it was fitted to.
Once you have that information, head down to your local Japanese car wreckers and Bob's your uncle.
From what I have hear Isuzus are the match but can't vouch for the year or model.
Here is an English site with information on YSE/ YSB starter motors. You will see cross reference numbers here.
These will be Chinese manufacture but don't be put off by that.
By all accounts they are reliable and for the low prices a bargain.
www.startermotor-alternator-store.co.uk/yanmar-ysbyse--1kw-marine-starter-motor-s2185-4470-p.aspGood luck.
gary