Can not start my lawnmower. Installed the new sparkplug. It feels like there is no spark coming out of it when installed. Does anybody knoew how to check if the spark is produced properly?
2007-03-25 16:16:55 · 5 answers · asked by Vladimir U 1 in Home & Garden ➔ Maintenance & Repairs
Unscrew the plug and lay it on the engine somewhere the threads will be grounded. Crank the engine and look for a spark between the electrodes. DO NOT HOLD THE PLUG! It'll not the crap out of you. This only tells you if it has spark not how powerful it is. Usually if there is spark it will fire the engine, assuming its getting fuel of course.
Good Luck!
2007-03-25 16:35:09 · answer #1 · answered by Pat C 3 · 0⤊ 0⤋
Remove the plug and then reconnect the plug wire, make sure the plug is grounded against the engine. Pull on the starter cord and see if a spark jumps across the plug. This is hard to do but is easier to do if you have some one to help. Try to do it out of bright sunlight as the spark is not very bright. Another way, which I don't recommend but if you are brave enough to try it is to hold on the the end of the plug wire with your hand. You can also buy a small engine repair book and this will explain what to look for as you trouble shoot.
2007-03-25 16:30:47 · answer #2 · answered by John P 6 · 0⤊ 0⤋
Three ways.. First, Stick something metallic (nail, bolt, etc) in the rubber socket that goes overthe plug. Put the end that sticks out about 1/8 inch from metal on the mower (not the end of the plug) and pull starter. Watch for spark. May take a time or two or three to get it right as it will ove around. Don't ground it for this check. Second option- take out spark plug, put rubber socket that goes on it, on it. Lay the plug on the mower, pull starter and watch for spark. If no spark, you may still need option ONE to see if the problem is spark or is it the plug. Third (AND BEST), buy a spark gap tester from a place that sells lawnmover parts ($8 to 15), It fits one end into the spark plug rubber boot the other end has a spring clamp to hook to the mower frame for option 1 or to the plug for option 2. Another simple test... take a straw and stick in gas, hold your finger on top and move 1/2 straw of gas into the spark plug hole, put in plug and pull to see if it starts for a moment or two. Also good to notice, when you pull out plug, is it wet after you tried to start it.Thats sort of helps to see if you have electric or gas problem
2007-03-25 16:34:31 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Remove the spark plug, install the cap and position it so the metal body rests against the engine block. (non painted area). Make sure the kill switch is off, the throttle is up, and the safety bar is pulled in. Pull the start cord and you should see a visible spark across the electrode gap of the spark plug.
2007-03-25 16:35:17 · answer #4 · answered by scott p 6 · 0⤊ 0⤋
use of a spark tester is the best way
2007-03-25 16:28:03 · answer #5 · answered by barry r 6 · 0⤊ 0⤋