Spark present, still not starting - 5HP Tiller
Bought a used Craftsman front tine tiller with a 5HP Briggs & Stratton last spring. When I bought the machine it took a lot of pulls to start, but it would eventually start. I used it handful of times, ran the motor until the gas ran out, then put it in my shed for the winter.
I tried to start the engine this weekend, but I broke the pull cord after 5/6 pulls. When I opened the mechanism to re-install the cord, I noticed that the recoil spring was broken at the end. Instead of getting a new spring, I used some pliers to crimp the existing broken end of the spring, reinstalled the cord, and everything on seems to be pulling just fine now.
However, the engine will not start. When I remove the spark plug from the motor and pull the cord I see no spark. I replaced the existing spark plug with a new one. Same result; no spark. I removed the lead from the spark plug, then tested the coil with my multimeter. The coil is showing resistance when I test the from the lead wire and the cutoff switch (2.68 ohms when the multimeter was set to 20k). Seems like the coil is working properly.
- Is it possible that I'm not getting enough RMPs from the flywheel because of my recoil spring mod? It seems to be spinning just fine right now
- I replaced the existing spark plug with the same exact one. However, the old spark plug has a much larger gap than the new spark plug. I read online that the gap should be 0.030 inches. The new one looks more like 0.030 than the old one.
I'm new to small engines but enjoy the work. What should I test next? Happy to post any photos that would help.
post edited by blaubner - 2020/03/30 10:16:49