"A" plate 1984 MK1 - Help (2. 10w Verus 12A)

[rstewart001]

Gents

Issue number 2 for me is trying to understand the difference in the engine / plating of 10w / 12a. a couple of questions on this to my peers who are in a position to answer

1. Is there a difference in power
2. Is the engine internals different?
3. I read in one of the pages the 10w is "unrestricted" is that the case?
4. Can you tell me where to get a spec sheet for the 12 a


Lifted from a site somewhere? my reg document states 12a as does the engine and frame, is this "not so good"?

Introduced : Mk1 August 1982 .......... MK2 June 1985 .......... MK3 March 1987

Discontinued : MK1 March 1986 .......... MK2 March 1987 .......... MK3 February 1989

Frame/ engine nos : Mk1 10W- 000***/ 1984 Then 12A 100*** 1986


 

[LC_BOTT]

Wasn't the 12A restricted to 12 HP for english restriction laws? (otherwise 21HP) mainly in the exhaust pipe from memory, not sure about carb, if it was just jetting?

[museumman]

Yeah the carb jetting was different, but I dont think it can
Be changed as Ledar used to do a kit that involved drilling iirc. And the demand for 10W carbs is too high to suggest 12A carbs are as good.

[jorjasfather]

I have a ledar kit for this