Merc 50hp 4 cylinder - age and reputation please ?

EDDYSTONE EEL

Seaman
Joined
Jan 13, 2008
Messages
56
Question please

Mercury Blueband 50 hp 4 cylinder serial no 9207299 (thunderbolt ignition)
Firstly how old is it, I would say 1979 is that accurate

Secondly, are they any good, is there a common fault with them and what are they like for parts

Thank you
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Merc 50hp 4 cylinder - age and reputation please ?

Yes, it is a 79 4 cyl 50HP built in Belguim with ADI ignition, it don't get any better than that. A bullet proof engine.
 

EDDYSTONE EEL

Seaman
Joined
Jan 13, 2008
Messages
56
Re: Merc 50hp 4 cylinder - age and reputation please ?

Hi Laddies,

thanks for the info

I thought it was thunderbolt ignigtion, whats the differance ?

thanks
 

sailingwest

Seaman
Joined
May 13, 2007
Messages
68
Re: Merc 50hp 4 cylinder - age and reputation please ?

Hi Eddy, the thunderbolt ignition is an electronic system which is very reliable and once set up tends to stay that way ,the older engine had a distrubitor which is much more prone to going out of sync and is much less reliable.Great engine as long as you look after it it will look after you. Charge on....Jim B
 

zabee

Cadet
Joined
Mar 5, 2008
Messages
7
Re: Merc 50hp 4 cylinder - age and reputation please ?

I think i have same motor. What sort of fuel to oil ratio should be used?
 
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