Engine Identification

Hagarr · Sunday at 10:05 PM

Hello All
I have an Engine i'm attempting to identify if others could please help.
It is running a Joe Hunt Magneto, Drive end of crank has internal thread, not external as most I have witnessed.
Engine number is 315678.
Bore is 80mm +0.50mm appears to have liners fitted, unknown crank configuration.

Thank You

dobba99 · Monday at 12:24 AM

Hagarr said:
Hello All
I have an Engine i'm attempting to identify if others could please help.
It is running a Joe Hunt Magneto, Drive end of crank has internal thread, not external as most I have witnessed.
Engine number is 315678.
Bore is 80mm +0.50mm appears to have liners fitted, unknown crank configuration.

Thank You

Photos please

Hagarr · Monday at 1:54 AM

Photos are on my phone and a pain to get onto websites. Not much to show to be honest, as described in previous message.

robs ss · Monday at 2:39 AM

If you Google your number (which you could do) it looks like late '74.
Standard bore for an 850 is 77mm so at 80mm it is more than +0.5mm

Can't say more than that with your limited description. Joe Hunt was never fitted as standard. Crank has been modded by someone.

kommando · Monday at 3:22 AM

RGM 920 kit uses 81 mm bore, there was an earlier version, maybe that used 80.5 mm ?

Engine Identification

Hagarr

dobba99

Hagarr

robs ss

kommando

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