Spark plug for MV125trl -
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post #1 of 3 (permalink) Old 02-01-2011, 07:35 AM Thread Starter
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Spark plug for MV125trl


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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post #2 of 3 (permalink) Old 02-01-2011, 07:55 AM
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NGK B7HS with a 0.5mm gap.


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.

Last edited by Dorian; 02-01-2011 at 08:30 AM.
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post #3 of 3 (permalink) Old 02-01-2011, 01:03 PM Thread Starter
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Thanks Dorian

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

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