0.6 to 0.7mm
The Honda FES 125 Pantheon is a motor scooter, developed by Honda.If you want to find a spark plug for one you should go to a motorcycle parts store and see if the plug cap for that model is available.
It appears to be NGK r6918b-8. Doing a little searching I found the spark plug above listed as: "NGK special spark plug for (1996-2000) RM 125." This same spark plug is listed in the 2003 RM 125 Service Manual as the correct spark plug for that engine.
It is 0.020-0.024in
What is the spark plug gap for a 2006 yamaha ttr 125?
Try www.bikebandit.com, they have a large selection of oem and aftermarket spark plugs, if you keep fouling plugs try to rejet the carb, or swith to a hotter spark plug.
The spark plug for this bike is Ngk Br8es.
Spark plug BR9EG part # 98079-59679 usually about $5.00
The Honda Shadow came with a single cylinder 125 cc engine and a V-Twin 2 cylinder 500, 600, 700, 800, & 1100cc, engine, depending on which model you buy. The single cylinder 125 cc has one spark plug. All the other V-Twin engines have 2 spark plugs.
NGK CR8E is the best spark plug to replace the original
Br9eix
The NGK brand R6918B-8. It is an expensive spark plug at around $30. It was specially designed for the RM 125 and Suzuki does not recommend you use any other plug because you can damage your engine.