NGK Spark plug application guide
THIS IS A WORK IN PROGRESS! USE IT AS A GUIDE, IT IS NOT THE LAST WORD ON THE SUBJECT! We have found that the original plug recommendations cross over to slightly different NGK plugs, depending on whose chart you are looking at.
If you use them in your engine, check the plugs frequently until you are sure they are not too hot a heat range plug.
CCW / KIORITZ
Haven't found 440/21 yet. If anyone has issues with this list, let me know
and I'll change it. This list is from the NGK web site.
CCW - Snowmobile Engines KEC 340 339
Spark Plug Part No. Stock No. Plug Gap
Standard B8HS 5510 .024
CCW - Snowmobile Engines KEC 440 436
Spark Plug Part No. Stock No. Plug Gap
Standard B8HS 5510 .024
If the above plugs are correct, they should be the "short reach" type.
Note that they are "HS" while the rest are "ES"
CCW - Snowmobile Engines KEC 340/5 339
Spark Plug Part No. Stock No. Plug Gap
Standard B8ES 2411 .024
CCW - Snowmobile Engines KEC 340/22A 339
Spark Plug Part No. Stock No. Plug Gap
Standard B8ES 2411 .024
CCW - Snowmobile Engines KEC340/23 339
Spark Plug Part No. Stock No. Plug Gap
Standard B10ES 7928 .024
CCW - Snowmobile Engines KEC 440/5 436
Spark Plug Part No. Stock No. Plug Gap
Standard B8ES 2411 .024
CCW / Kioritz - Snowmobile Engines KEC440/22A w/Magneto 436
Spark Plug Part No. Stock No. Plug Gap
Standard BR8ES 5422 .024
CCW / Kioritz - Snowmobile Engines KEC440/22A w/CDI 436
Spark Plug Part No. Stock No. Plug Gap
Standard B10ES 7928 .024
CCW / Kioritz - Snowmobile Engines KEC440/22B 436
Spark Plug Part No. Stock No. Plug Gap
Standard B10ES 7928 .024
CCW / Kioritz - Snowmobile Engines KEC440/22C 436
Spark Plug Part No. Stock No. Plug Gap
Standard B10ES 7928 .024
CCW / Kioritz - Snowmobile Engines KEC440/23LC 436
Spark Plug Part No. Stock No. Plug Gap
Standard B10ES 7928 .024
SPARK PLUGS
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400brian
- Posts: 5626
- Joined: Wed Jul 20, 2005 12:00 am
- Real Name: James T. Kirk
- Location: South Central Wisconsin
SPARK PLUGS
'09 Vintage Challenge Survivor, and I wasn't late for supper!
'10, '11, '12, '13,'14,'15,'16,'17, '18, 19, 20, 21, 22 Vintage Challenge Survivor !
72 400 restored, Father bought new in '71
73 X8 restored
'74 340 green machine
'74 X8 9 time VC finisher
'78 Spitfire in progress
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'78 LF 440 future CC clone
'73 Skiroule RTX 440, 500 mi.