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Discussion Starter #1
Hi

Anybody know the correct spark plug for a MV 125TRL?

I took out a Champion L86.

I am going to put in a NGK if possible.

Thanks Keith
 

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NGK B7HS with a 0.5mm gap.

Dorian

Forgot to say;

If it's the early type engine it might be a B8ES. Slightly diff heat range and a longer reach thread.

'E' Reach = 19mm long

'H' Reach = 12.7 mm long.

Just double check the depth of thread in the cylinder head. You can never be sure what someone might have fitted over the years.
 

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Discussion Starter #3
Thanks Dorian

The Champion one which came out is the 12.7mm, but i will check the thread length of the cylinder head.

Keith
 
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