7 replies to this topic

[LESTA MINI]

hey guys,

i ahev a 1984 mayfair 998cc

what distance shoudl i adjust my spark plugs too as i have amisfire and im just doing this to see if it solves the problem.

imperial or metric dont mind got both measuring

cheers

dan

[lrostoke]

I was pretty sure it was 0.8mm but did a search to confirm and found conflicting answers.

Actually got mine set at 0.9 but Im running Lucas gold coil and electronic ignition which can stand a wider gap.

I'd go for 0.8 see how you get on.

My copy of Haynes only lists Champion, says for alternative makes check manufactorers guide lines.


1984 should be NGK BP6ES which NGK stae 0.8mm gap

Edited by lrostoke, 08 March 2010 - 07:20 PM.

[Surfbluegarage]

25 thou??

[lrostoke]

Ignition system
Spark plugs:*
Type:
All models up to 1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Champion RN9YCC or RN9YC
998 cc engine models, 1987 to 1989 . . . . . . . . . . . . . . . . . . . . . . . Champion N12YCC or N12YC
998 cc engine models (1989-on) . . . . . . . . . . . . . . . . . . . . . . . . . . Champion RN12YCC or RN12YC
1275 cc engine models (1990-on) . . . . . . . . . . . . . . . . . . . . . . . . . Champion RN9YCC or RN9YC
Electrode gap:
All Champion plug types except RN9YC and N12YC . . . . . . . . . . 0.8 mm
Champion RN9YC and N12YC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6 mm
HT leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Champion LS-02, boxed set
*Spark plug types and electrode gaps are as recommended by Champion Spark Plug. If alternative plugs are used, refer to their manufacturer’s
recommendations.

[T.Harper]

Use NGK BP6ES and gap to 25 thou

[LESTA MINI]

is that 25mm or 25 in imperial?

[BoboGib]

25 thousands of and inch. or 0.025 inches

[LESTA MINI]

cheers