Standard: GB/T7825-2017
Certification: IAIF 16949:2016
Product details:
140cc pit bike spark plug, applicable models: MCR7HSA/MCR6HSA
Heat value: 6/7
Thread length: 12.5mm
Thread diameter: 10mm
Wrench size: 16mm
Installation torque: 10-15 N·m (Please use a torque wrench, overtightening may damage the cylinder head threads)
140cc pit bike spark plug, heat range selection: 7 heat range (such as MCR7HSA): Standard configuration, suitable daily riding. 6 heat range (such as MCR6HSA): A "colder" spark plug, suitable for long-term high-speed or modified engines.8 heat range (such as CR8HSA): "Hotter", only for low-speed short trips, otherwise it is prone to carbon build-up. uggestions: Use 7 heat range for original unmodified engines; if the engine is upgraded or often driven at high speeds, choose 6 heat range.
140cc pit bike spark plug, Vehicle Maintenance Guide: Fuel Mixture Ratio Impact: If there is frequent carbon buildup adjust the carburetor's air-fuel ratio (too rich) or check the air filter. Ignition System Interlinked Check: Faults in the high-t coil or ignition coil can also lead to poor ignition, don't just focus on the spark plug. Case Analysis: Symptoms: Difficult start/lack of, check the spark plug, remove and observe the electrode condition, if there is serious carbon buildup, it needs to be cleaned or replaced, check the air-fuel ratio;If the electrode is burned out, it should be replaced immediately; If the gap is too large, adjust it to 0.65mm or replace it; If spark plug is normal, check the high-tension coil/ignition coil Summary: Standard models are preferred, regularly clean carbon buildup and maintain a 0.60.7mm gap. If the budget allows, iridium spark plugs are a reliable upgrade. If the problem persists after replacement, it is necessary to check the carbure and ignition system.
|
Product model |
Material |
Product size |
Installation torque |
Applicable vehicle models |
|
MCR7HSA 702 |
Nickel alloy |
Thread length：12.5mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
70cc/90cc/100cc/110cc |
|
MCR7HIX 802 |
Single iridium |
Thread length：12.5mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
70cc/90cc/100cc/110cc |
|
IICR7HSA 902 |
Double iridium |
Thread length：12.5mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
70cc/90cc/100cc/110cc |
|
MDR8EA 703 |
Nickel alloy |
Thread length：19mm Thread diameter：12mm Wrench size：18mm |
15-20N·m |
125cc/250cc/300cc |
|
IIDR8EA 903 |
Double iridium |
Thread length：19mm Thread diameter：12mm Wrench size：18mm |
15-20N·m |
125cc/250cc/300cc |
|
MDPR8EA-9 704 |
Nickel alloy |
Thread length：19mm Thread diameter：12mm Wrench size：18mm |
15-20N·m |
125cc/250cc/300cc |
|
MDPR8EIX-9 804 |
Thread diameter |
Thread diameter |
15-20N·m |
125cc/250cc/300cc |
|
IIDPR8EA 904 |
Double iridium |
Thread length：19mm Thread diameter：12mm Wrench size：18mm |
15-20N·m |
125cc/250cc/300cc |
|
MCR8E 705 |
Nickel alloy |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
New Dazhou Honda SDH150/ Suzuki UC125 |
|
MCR8EIX 805 |
Single iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
New Dazhou Honda SDH150/ Suzuki UC125 |
|
IICR8E 905 |
Double iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
New Dazhou Honda SDH150/ Suzuki UC125 |
|
MCPR8EIX-9 806 |
Single iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
Xindazhou Honda CBX150/ Xindazhou Little Warrior SDH125 |
|
IICPR8EA-9 906 |
Double iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
Xindazhou Honda CBX150/ Xindazhou Little Warrior SDH125 |
|
MCR9EIX 807 |
Single iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
HONDA CBR series /VTR series YAMAHA FZR/XJR/YZF/FJR |
|
SIICR9E 907 |
Double iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
HONDA CBR series /VTR series YAMAHA FZR/XJR/YZF/FJR |
|
IIER9EHS 912 |
Double iridium |
Thread length：19mm Thread diameter：8mm Wrench size：13mm |
8-10N·m |
Honda VFR400/Zongshen TC380 |
|
MCR9EHS 708 |
Nickel alloy |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
Honda VFR400/Zongshen TC380 Honda VFR400/Zongshen TC380 |
|
MCR9EHIX-9 808 |
Single iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
Honda VFR400/Zongshen TC380 |
|
IICR9EHIX-9 908 |
Double iridium |
Thread length：19mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
Honda CBR250/VTR250 |
|
MILMAR8A9 809 |
Single iridium |
Thread length：27mm Thread diameter：10mm Wrench size：14mm |
10-15N·m |
Yamaha MT-07 BMW K1600GT |
|
IILMAR8A9 909 |
Double iridium |
Thread length：27mm Thread diameter：10mm Wrench size：14mm |
10-15N·m |
Yamaha MT-07 BMW K1600GT |
|
SIILMAR9A9S 910 |
Double iridium |
Thread length：26.5mm Thread diameter：10mm Wrench size：14mm |
10-15N·m |
Honda KTM350 African Parallel Bars 1100L/ADV |
|
MSILMAR9A9S 810 |
Single iridium |
Thread length：26.5mm Thread diameter：10mm Wrench size：14mm |
10-15N·m |
Honda KTM350 African Parallel Bars 1100L/ADV |
|
IILKAR8A-9 911 |
Double iridium |
Thread length：26.5mm Thread diameter：12mm Wrench size：14mm |
15-20N·m |
KTM Duke 250/RC390 |
|
MILMAR9D-T 813 |
Single iridium |
Thread length：26.5mm Thread diameter：10mm Wrench size：14mm |
10-15N·m |
BMW Waterbird R1200GS HP41000 |
|
MLMDR10A-JS 714 |
Nickel alloy |
Thread length：26.5mm Thread diameter：10mm Wrench size：13.5mm |
10-15N·m |
Ducati V4 |
|
MA6TC 701 |
No resistance |
Thread length：12.5mm Thread diameter：10mm Wrench size：16mm |
10-15N·m |
70cc/90cc/100cc/110cc |
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