6 replies to this topic

[adam_93rio]

my dad cant find his manual and need to know what to set his spark plugs to. he has an early 998 (with tappet chest covers on the back etc) what should the gap be set to?

metric and imperial size would be best ASAP

[charliedurrant]

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.

[bmcecosse]

N 12 Y in a 998 ????? Surely N 9 Y ??

[adam_93rio]

cheers for the reply, when i got outside he told me it was the points gap he actually wanted and that he'd found his book.

thanks anyway at least its a resourse for someone else to use now.

[charliedurrant]

N 12 Y in a 998 ????? Surely N 9 Y ??

Bmc, it's as per Haynes but ....

[bmcecosse]

Haynes.............. HBOL Lives!!!

[jaydee]

Champions N9Y or NGK BP6ES, gap from 25 thou (1.5 ohm coil + points and condeser) to 30 thou (3.0 ohm coil + electronic ingition). With high energy coils you can try a wider gap (about 35 thou) to achieve a stronger spark.