JMCHstore Racing Spark Plug For Mega Moto 80cc MM80, Coleman B100, For Phatmoto gas bike 79cc Motovox MBX10 Mini bike, Lifan 79cc 105cc 3.5HP Engine, MM-K80R Go kart, L7T (Pack of 2)

When comparing this spark plug to the stock one that came in the 105cc Lifan engine, the electrodes on this one extend farther into the combustion chamber. This will deliver the spark more directly to the intake charge, which is where the extra performance comes from.

Excellent quality.

Great spark plug, noticeable power increase. It actually was enough power to force me to install larger carb jets. Seems to ignite every last vapor of fuel so be prepared to need larger carb jets if you recently added an open header to a stock 105

Bought for my MMB105, it fits and works great

Excited to use them. Haven't had a chance to put the in. Looks like described in the discripsion