Spark Plug Cap Assembly Procedure
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Cut & paste From CH:
Make sure you are using the correct spark plug with your CHXL steel cap. We have three sizes of Steel Spark plugs caps with silicone boot.
These are the approximate size of the cap;
- For the NGK CM-6, Denso U20M-U and Champion Y-82 10 MM.The cap inside Diameter is .585, 14MM or about 9/16 inch. The cap does not snap all the way over the hex on the Champion Y-82. I do not believe the cap could ever come off but I would use the CM-6 Or Denso U20M-U.
The price on the NGK-CM 6 has gone way up, our price on the CM6 is now $8.50.
We suggest the Denso U20M-U $4.95.
-There is a 5/8 hex, gasket type,10MM thread, resistor spark plug that will work fine in the DA, 3W, BME and the new Zenoah G20&G26. It is the NGK CMR6A @ $4.95. It is about 3/8 inch taller han the CM 6 but a more rugged resistor plug.
When you use a Resistor spark plug you do not need the resistor wire or added resistor in the plug cap. This will give you a much hotter spark. You would have to change the spark plug cap to the one for the NGK BPMR6F 5/8 hex taper seat. This plug the NGK CMR6A 10 MM thread has a gasket. If you do not like the little extra length of the thread, just add another gasket.
- For the NGK. BPMR6F, NGK CMR6A 10 MM, Champion RDJ6J or 7J the cap inside dia is aprox .675,17MM or 9/16 inch.
- For the NGK BMR6A BPMR6A BoschWSR6F, Champion RCJ6Y.
Again the cover does not snap all the way down on the Champion RCJ6-7Y.
We suggest using the NGK or Bosch.We have found three different sizes of the Champion RCJ6-7Y.
We also have our old stand by the Bosch cap that will fit all of the short ¾ hex 14MM spark plugs. The Bosch cap will add $12.00 to the price of the CHXL ignition.
Make sure you are using the correct spark plug with your CHXL steel cap. We have three sizes of Steel Spark plugs caps with silicone boot.
These are the approximate size of the cap;
- For the NGK CM-6, Denso U20M-U and Champion Y-82 10 MM.The cap inside Diameter is .585, 14MM or about 9/16 inch. The cap does not snap all the way over the hex on the Champion Y-82. I do not believe the cap could ever come off but I would use the CM-6 Or Denso U20M-U.
The price on the NGK-CM 6 has gone way up, our price on the CM6 is now $8.50.
We suggest the Denso U20M-U $4.95.
-There is a 5/8 hex, gasket type,10MM thread, resistor spark plug that will work fine in the DA, 3W, BME and the new Zenoah G20&G26. It is the NGK CMR6A @ $4.95. It is about 3/8 inch taller han the CM 6 but a more rugged resistor plug.
When you use a Resistor spark plug you do not need the resistor wire or added resistor in the plug cap. This will give you a much hotter spark. You would have to change the spark plug cap to the one for the NGK BPMR6F 5/8 hex taper seat. This plug the NGK CMR6A 10 MM thread has a gasket. If you do not like the little extra length of the thread, just add another gasket.
- For the NGK. BPMR6F, NGK CMR6A 10 MM, Champion RDJ6J or 7J the cap inside dia is aprox .675,17MM or 9/16 inch.
- For the NGK BMR6A BPMR6A BoschWSR6F, Champion RCJ6Y.
Again the cover does not snap all the way down on the Champion RCJ6-7Y.
We suggest using the NGK or Bosch.We have found three different sizes of the Champion RCJ6-7Y.
We also have our old stand by the Bosch cap that will fit all of the short ¾ hex 14MM spark plugs. The Bosch cap will add $12.00 to the price of the CHXL ignition.
#28
ORIGINAL: Clay Walters
Cut & paste From CH:
Make sure you are using the correct spark plug with your CHXL steel cap. We have three sizes of Steel Spark plugs caps with silicone boot.
These are the approximate size of the cap;
- For the NGK CM-6, Denso U20M-U and Champion Y-82 10 MM.The cap inside Diameter is .585, 14MM or about 9/16 inch. The cap does not snap all the way over the hex on the Champion Y-82. I do not believe the cap could ever come off but I would use the CM-6 Or Denso U20M-U.
The price on the NGK-CM 6 has gone way up, our price on the CM6 is now $8.50.
We suggest the Denso U20M-U $4.95.
-There is a 5/8 hex, gasket type,10MM thread, resistor spark plug that will work fine in the DA, 3W, BME and the new Zenoah G20&G26. It is the NGK CMR6A @ $4.95. It is about 3/8 inch taller han the CM 6 but a more rugged resistor plug.
When you use a Resistor spark plug you do not need the resistor wire or added resistor in the plug cap. This will give you a much hotter spark. You would have to change the spark plug cap to the one for the NGK BPMR6F 5/8 hex taper seat. This plug the NGK CMR6A 10 MM thread has a gasket. If you do not like the little extra length of the thread, just add another gasket.
- For the NGK. BPMR6F, NGK CMR6A 10 MM, Champion RDJ6J or 7J the cap inside dia is aprox .675,17MM or 9/16 inch.
- For the NGK BMR6A BPMR6A BoschWSR6F, Champion RCJ6Y.
Again the cover does not snap all the way down on the Champion RCJ6-7Y.
We suggest using the NGK or Bosch.We have found three different sizes of the Champion RCJ6-7Y.
We also have our old stand by the Bosch cap that will fit all of the short ¾ hex 14MM spark plugs. The Bosch cap will add $12.00 to the price of the CHXL ignition.
Cut & paste From CH:
Make sure you are using the correct spark plug with your CHXL steel cap. We have three sizes of Steel Spark plugs caps with silicone boot.
These are the approximate size of the cap;
- For the NGK CM-6, Denso U20M-U and Champion Y-82 10 MM.The cap inside Diameter is .585, 14MM or about 9/16 inch. The cap does not snap all the way over the hex on the Champion Y-82. I do not believe the cap could ever come off but I would use the CM-6 Or Denso U20M-U.
The price on the NGK-CM 6 has gone way up, our price on the CM6 is now $8.50.
We suggest the Denso U20M-U $4.95.
-There is a 5/8 hex, gasket type,10MM thread, resistor spark plug that will work fine in the DA, 3W, BME and the new Zenoah G20&G26. It is the NGK CMR6A @ $4.95. It is about 3/8 inch taller han the CM 6 but a more rugged resistor plug.
When you use a Resistor spark plug you do not need the resistor wire or added resistor in the plug cap. This will give you a much hotter spark. You would have to change the spark plug cap to the one for the NGK BPMR6F 5/8 hex taper seat. This plug the NGK CMR6A 10 MM thread has a gasket. If you do not like the little extra length of the thread, just add another gasket.
- For the NGK. BPMR6F, NGK CMR6A 10 MM, Champion RDJ6J or 7J the cap inside dia is aprox .675,17MM or 9/16 inch.
- For the NGK BMR6A BPMR6A BoschWSR6F, Champion RCJ6Y.
Again the cover does not snap all the way down on the Champion RCJ6-7Y.
We suggest using the NGK or Bosch.We have found three different sizes of the Champion RCJ6-7Y.
We also have our old stand by the Bosch cap that will fit all of the short ¾ hex 14MM spark plugs. The Bosch cap will add $12.00 to the price of the CHXL ignition.




