Guys...not much of a troubleshooter on small engines, hence my question.
I have a Toro Recycler II w/ a 3.75 (4HP) B&S engine. A few weeks ago it began dying while mowing, but would restart. Then the next two time my son mowed, it would run for 5 minutes or so then die and would not restart.
I changed the plug knowing it had been a long time since doing so. I also went ahead and serviced it (oil/filter). That is when I noticed that when I depressed the priming bulb it did not feel "normal". I took the air cleaner back off and noticed when I would depress the priming bulb, it was not "spraying" fuel into the carburator.
Could this be the issue? I assume the carburetor works off a "vacuum" and if so, the issue with the priming bulb not functioning...is that an indication of a loss of vacuum? If so, what part do I actually need to replace? Does the bulb just come off? I couldn't tell...but didn't look REAL close. Given a little direction, I think I can replace any part required...I just haven't worked on a lawnmower engine since rebuilding one in junior high...and thats been a very long time.
thanks for any help.