Help with ohm meter readings on my 86 Big Red.
Hello, i been chasing down and engine problem My 86 big red would start to sputter if you give it more than 1/8 th throttle. Machine runs awesome for like 20-30 mins. Only happens after it gets hot.If I shut it off and let it cool down, it runs fine again for the same amount of time. Sounds like the spark is cutting out and its pinging. Feels like the machine is jerking when it starts acting up. Fresh gas and no vapor lock as I tried two different gas caps.
Here are the readings I got from measuring the ohms.
Can someone explain how to read these. Ignition coil says .18 +- 0.018. Does that mean it should be .18? What is the other number for? I got 1.3 with old coil and 1.4 with the new one. Resistance on secondary coil says 9.1. +- 1.66. Old coil was 11.7. And my new coil says 2.03.
Any help would be great explaining if it's better to have more or less resistance.
1986 ATC 350X
1986 ATC Big Red 250ES