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Bosch provides a cross reference chart for the Torch. This chart should give all of the various cross references for the Torch series including the F 7 RTC plugs.
NGK cross reference for this plug is CR8HSA
Champion stock # 71
torch F7RTC or champion RN9YC
I've just replaced my Torch E7RTC spark plug with a NGK BPR7ES. It works perfectly. Fitted to a Generic Ideo 50cc Scooter (2012).
NGK BPR6ES Champion RN9YC Champion Rn11YC4 [hotter plug fights carbon buildup
The laser 40500 Champion cross reference is for spark plugs. There are many cross reference data bases to show which spark plugs can be interchangeable.
UK spark plug cross reference information can be found on the instructions when purchasing a cross spark plug that works in the UK, or on websites that provide information on cross spark plugs.
Most all brand spark plug brands are on the cross reference including Champion. Some of the brands that cross reference to Champion are Autolite and Denso,
Many spark plugs can be interchangeable if they fit the motor in question. To find out which can cross reference with the Laser 40500, a cross reference catalog should be referenced.
NGK - BP5ES Champion - N11YC Autolite - 64 Bosch - WR8DC Denco - W16EXU Torch _ F5TC
Bpr6es