Fair pricefor Mariner 2HP

[ghostlymoron]

I think the Bantam engine is a mirror image of the MZ. The design was taken by the allies as war reparation and later claimed to be of Brummie design.

 

[Tranona]

You may well be right. My experience of 2 strokes is limited to BSA Bantams and Seagull outboards. The former runs on 25:1 and is extremely sensitive to this ratio. The latter runs on 16:1 as standard but can be adjusted to run on 20:1 without replacing the needle or 25:1 if you swap it (allegedly) although mine won't run happily on 25:1.

Seagulls were 10:1 or 25:1 with a change in needle on a Villiers carb (40 series), no change on a Bing carb (some 40s) or jet change on an Amal carb (100/110 series). With the correct needle or jet as appropriate 25:1 is no problem.

 

[ghostlymoron]

Mine will run fine on 20:1 but hiccups on 25:1 even with a No. 2 needle.