(Cross-posting, just to make sure I hit all the bases!)
Hi all,
I'm helping my friends get their Cub Cadet 1330 going. It was running when they bought it two weeks ago, but when they tried their first mow last week, it ran for 10 minutes, made a popping sound (it sounds like they mean backfired), and then wouldn't start. I went over, found badly deteriorated fuel lines and some minor rubber debris in the bowl. Well, when I say minor, I mean it was quite a few particles, but small in size, still easy to see, though. Anyway, I pulled the carb bowl, cleaned it out, checked the float, it's solid, checked and replaced the needle (I had one from a rebuild kit for the Walbro that wasn't used), and sprayed out the passages I could get to with the carb intact. Checked the spark plug - it's older, but in good shape, so cleaned and put back in. Oil was recently changed - still very clear.
I put it back together, charged the battery and after a few seconds she started and ran like she should. I ran it for a good half hour, mowed some, stopped, waited a minute or two, and started again. Did this three times, all was well. I packed up my tools (about 10 minutes or so), and thought I'd try one more time - now it takes a minute or two before it sounds like it wants to start, though it has strong turn-over. Once it starts, it runs great.
Update since yesterday: When it sat overnight, it started with almost no problem. Ran it for 10-15 minutes, let it sit for maybe 5-10, and hard starting again.
What am I looking at here? Should I break the carb down, remove all the foam and gaskets, and give it a good soak in Berryman's? It seems like it HAS to be a carb issue, but I'm no pro, so I'm asking you guys who are!
It's a Cub Cadet 1330, 12.5 hp Kohler. The mower is in absolutely grade A condition otherwise - no paint scrapes or chips, no rust, only the most minor deck rust, all original paint as far as I can tell. The only things wrong besides the starting issue is a missing headlight lens and the blades need a sharpening.
Any help?
Thanks,
Jack
Starting issues...got a weird one