oLDSKI-DOOSLEDS

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Engine Spark Plug Data

For Information Only

Thanks to Bill in Northern Indiana for helping update the 775 engine information!

Under Construction
Engine Model Cyl's Bosch Champion NGK
Kohler K141 1 ? ? ?
JLO L152 1 M225T1 UK10 A-6
Rotax 165 1 M175T1 UK10 A-6
JLO L197 1 M225T1 UK10 A-6
Rotax 247 1 M240T1 K57R A-6
Rotax 250 1 M240T1 K57R

A-6 (10.5 HP)
A-7 (14 HP)

Rotax 290 1 M280T1 ? A-7
Rotax 292 1 M280T1 ? A-7
Rotax 300 1 M240T1 K57R

A-6 (12 HP)
A-7 (16 HP)

Rotax 302 1 M240T1 K57R A-7
Rotax 320 1 M240T1 K57R A-7

(*) NOTE:  T'NT models should use Bosch MT80T31 spark plug.

Rotax 335* 1 M240T1 ? A-8
Rotax 337* 1 M240T1 ? A-8
Rotax 340* 1 M240T1 ? A-8
Rotax 342* 1 M240T1 ? A-8
 
Rotax 343 2 W260T1 L78 ?
Rotax 370 2 W225T1 ? B-7HS
Rotax 371 2 W240T1 ? B-7HS
Rotax 400 2 W260T1 L78 B-7HS or
B-8HS
Rotax 401 2 W240T1
14 mm plugs
M240T1
 
18 mm plugs
? ?
Rotax 434 2 W240T1 ? ?
Rotax 435 2 M280T1 ? ?
Rotax 640 2 M280T31 ? A-7
Rotax 641 2 M280T31 ? A-7
Rotax 771 2 M310T1 ? A-8
Rotax 775 2 M310T1 #506 A-8