Lawn-Boy 10247 won't start again!
New member here with a problem. I've got a Lawn-Boy 21" SilverPro Series Mower, 6.5 HP DuraForce engine, model number is 10247, purchased new in September 2000.
In the past it has been somewhat temperamental with starting and I've learned from experience to put a new spark plug in each season. That usually suits it fine and the mowing season gets underway.
This season it's been more temperamental than usual. It has worked off and on this season. Earlier this spring it was a no start. I replaced the spark plug. I cleaned the air filter. After a couple of weeks of fiddling with things, and I do mean fiddling since I don't know what I'm doing, it started on the first pull like usual. It continued to start for a number of weeks as usual. It's been sitting unused for the last half of June as the grass didn't need cutting due to the dry weather. During the first week of July I tried to start it and it will have no part of it. Like when the spark plug needs replacing it starts hard (or is trying to) and you can tell it's trying, but now it's like it's not even trying.
My unprofessional, untrained opinion is that it doesn't seem to be getting a spark. I got the opportunity on the 15th to remove the spark plug, reconnect the spark plug wire and lean the plug with the metal part touching the cooling fins on the engine. With my wife assisting me by pulling the starter cord and/or observing the plug neither of us could see a spark. The spark plug we tried was purchased new this spring and did work on the times the mower ran this season. We also tried it with the one that I took out this spring when I put the new one in. Neither gave a spark. Is the leaning of the metal part of the plug against the engine fins sufficient to ground it? I assume that the spark if it works would be easily seen, is that correct?
On the 20th, I cleaned the gas cap to make sure the vent hole wasn't clogged and tried to start it again. No go. I suspect that it's the infamous ignition CDI. I took off the plastic shroud/cowling on top to get a look at the CDI and CDI gap and was surprised by the fact that it looked like I would have to remove/disconnect quite a few things/parts to get to it. Needless to say I didn't check the CDI/CDI gap. Do it's symptoms sound like it could be the ignition CDI? Is replacing the ignition CDI too complicated for a newbie to handle?
My lack of experience and knowledge of this procedure coupled with the uncertainty of whether or not the ignition CDI is the source of my no-start problem is leaving me a bit befuddled as to what to do about it. Two of shops I called told me that the CDI was not returnable. I'm not sure I want to invest nearly $50 in a part that my not solve my problem.
Any advice that anyone has to offer will be greatly appreciated. Thanks in advance.
DewGuy1999 (tired from using the push rotary mower)