0
Normally a thirty thousandths gap will serve just fine. Make sure you have the correct plug, and then obey the commandments for making two-stroke engines reliable: Clean air Clean fuel Good quality (or better) air-cooled two stroke oil. No "outboard two-stroke oil" - that's for water cooled engines.
If you've been running without an air cleaner, there will be plenty of dirt to live with for a while, and that will end up "bridging" the spark plug gap and the bike will refuse to run properly, or maybe at all.
Add your answer:
Earn +20 pts
What spark plug for a 1974 Yamaha ty 250?
The correct spark plug for this model is the NGK B-7ES.
What could cause a 1974 Yamaha 125 to have no spark?
Check for loose wires, then most likely a bad coil or rusty mag maybe bad cdi or stator
Torque specs for a Yamaha dt r 125cc head bolts?
1974 yamaha dt 125
What is the age of Yamaha guitar model G-170A?
1974
How do you install spark plugs and spark wires in a 1974 buick 455.?
One at a time
In what year was the Yamaha yz80 first made?
i am pretty sure it is 1974
What year and model is your Yamaha dt400 motorcycle eng 501 024466?
1974
What spark plug for 1974 25 hp Johnson?
champion j4c
What is the proper spark plug setting for a 1974 harley Davidson sportster?
If it's points or a Dyna S ignition you set the plugs at 28, other wise you set the plugs between 38 - 40
What kind of oil goes in a 1974 Yamaha enduro?
2 cycle.... since it a 2 stroke
What is the spark plug gap for a 4-cylinderinder Clark forklift?
what is the calibration of the spark plugs in a forklift clark 4 cyl. 1974
What is the gap for a 1974 Pontiac firebird spark plug?
The dwell for the points should be 30 degrees. The spark plug gap should be .040".
