I'd like to add to the spark plug area. The MSP actually came with extended reach plugs (which the BKR7E's are not), so you should probably continue to use extended reach plugs for the most effiecient combustion. Here is a list of plugs I found that are the proper fit:
Copper:
NGK: ZFR6F-11 (stock heat range) or ZFR7F (colder)
Denso: KJ20CRL11, KJ20CR11 (stock heat range) or KJ22CRL8 (colder)
Autolite: 5224 (stock heat range)
Splitfire: SF522D (stock heat range)
Bosch: 7562(FR8LCX) (stock heat range)
Platinum:
NGK: PZFR6F-11 (OEM Plug) or PZFR7F (colder)
Denso: PKJ20CR8 (stock heat range)
Autolite: Platinum - AP5224 ; Double Platinum - APP5224 (stock heat range)
Splitfire: TP522D (stock heat range)
Bosch: Platinum - 4230(FR8LPX);Platinum2 - 4301; Platinum+4 - 4418 (all stock heat range)
Iridium:
NGK: IZFR6F (stock heat range)
Denso: IK20 (stock heat range)
Most of the plugs are available with a factory preset gap of 1.1mm (when researching NGK's, add or remove a '-11' to the part number if you can't find what you want) The 1.1mm gap is too large for the MSP, which is supposed to be .7 -.8mm You an close up the gap, but that's a large difference and can cause electrodes and grounds to get off center. Ideally you should look for a plug that came with a factory gap around .8 or .7 mm The Denso KJ22CR-L8 are the closest I could find that are copper, colder heat range, extended reach, and proper gap.
I got all this info from sparkplugs.com (except the bosch info, which I got from boschusa.com) they have a really cool cross-reference area to help find equivalent plugs from other manufacturers.
I hope this helps someone.
Copper:
NGK: ZFR6F-11 (stock heat range) or ZFR7F (colder)
Denso: KJ20CRL11, KJ20CR11 (stock heat range) or KJ22CRL8 (colder)
Autolite: 5224 (stock heat range)
Splitfire: SF522D (stock heat range)
Bosch: 7562(FR8LCX) (stock heat range)
Platinum:
NGK: PZFR6F-11 (OEM Plug) or PZFR7F (colder)
Denso: PKJ20CR8 (stock heat range)
Autolite: Platinum - AP5224 ; Double Platinum - APP5224 (stock heat range)
Splitfire: TP522D (stock heat range)
Bosch: Platinum - 4230(FR8LPX);Platinum2 - 4301; Platinum+4 - 4418 (all stock heat range)
Iridium:
NGK: IZFR6F (stock heat range)
Denso: IK20 (stock heat range)
Most of the plugs are available with a factory preset gap of 1.1mm (when researching NGK's, add or remove a '-11' to the part number if you can't find what you want) The 1.1mm gap is too large for the MSP, which is supposed to be .7 -.8mm You an close up the gap, but that's a large difference and can cause electrodes and grounds to get off center. Ideally you should look for a plug that came with a factory gap around .8 or .7 mm The Denso KJ22CR-L8 are the closest I could find that are copper, colder heat range, extended reach, and proper gap.
I got all this info from sparkplugs.com (except the bosch info, which I got from boschusa.com) they have a really cool cross-reference area to help find equivalent plugs from other manufacturers.
I hope this helps someone.
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