15 April 2008 - 14:10LAwn Mower??????
Nick P ™ asked:
i have briggs & stratton 4.5hp mower. it was made in 2003 it says on it. its fairly new. it has no accelerator. i think it rrevs higher when u start mowing. but the prboel is that when u start it it starts then runs fine for 5 secs and then almost turns off. then goes to normall and repeats this patter. The fuel filter and the filters are fine. why is it doing this?>>???
Question posted courtesy of: Helen
i have briggs & stratton 4.5hp mower. it was made in 2003 it says on it. its fairly new. it has no accelerator. i think it rrevs higher when u start mowing. but the prboel is that when u start it it starts then runs fine for 5 secs and then almost turns off. then goes to normall and repeats this patter. The fuel filter and the filters are fine. why is it doing this?>>???
Question posted courtesy of: Helen
3 Comments | Tags: Lawn Care
16 Apr 2008 - 18:47
My mower does the same thing, it will do that until it has run for a few minutes and warmed up. You might have some bad gas, (i.e. it is old or has water in it) or it might just need a tune-up. I would have it serviced, as it is getting to that time of year again.
19 Apr 2008 - 7:49
The guy suggesting the guy suggesting the bad gas are 90 of.
22 Apr 2008 - 12:44
The most likely problem is the carburetor. These engines have a diaphram carb and need to be cleaned and rebuilt as the diaphram fails. It is not a hard job. You remove the gas tank and carb together. Then remove the carb and clean it out and put it back together with a rebuild kit. The kit costs about $10-15. Make sure that you note how the springs and rods attach to the carb. I sometimes use digital photos to make sure it goes back together right.