New mower cutting out when warm after 1st oil change
#1
09-19-13, 04:37 PM
New mower cutting out when warm after 1st oil change
Hi,
I have a new (3 month old) Craftsman mower w 7.25 hp briggs n stratton platinum engine. Mower is model 917.370921.
The oil was a little dirty so I changed it and the new oil is a tiny bit over the high mark.
Then I added gas and now it runs for 1 minutes, then cuts out in about 1-2 seconds. I tried the easy stuff based on other posts (new sparkplug and loosen gas cap). But no luck.
I'm not real mechanical, so before I start messing w the carb, i thought I'd get some more input.
More info on the mower - it is a simple pull bar and it starts. No choke or primer
Thanks,
John
I have a new (3 month old) Craftsman mower w 7.25 hp briggs n stratton platinum engine. Mower is model 917.370921.
The oil was a little dirty so I changed it and the new oil is a tiny bit over the high mark.
Then I added gas and now it runs for 1 minutes, then cuts out in about 1-2 seconds. I tried the easy stuff based on other posts (new sparkplug and loosen gas cap). But no luck.
I'm not real mechanical, so before I start messing w the carb, i thought I'd get some more input.
More info on the mower - it is a simple pull bar and it starts. No choke or primer
Thanks,
John
#2
09-19-13, 05:54 PM
Forum Topic Moderator
Check the air filter, it may have gotten soaked with gas and/or oil while the mower was tilted.
#4
09-20-13, 01:57 PM
Generally you change mower oil after the first 5 or 10 hours of operation (consult your manual) to get rid of metal shavings from manufacturing. After that, it's once a year or after x number of hours.
Gasses combine with the oil which gives it that dark color. This is normal and does not require a change, the oil absorbs it while retaining its lubricity.
Now that you've done your first change, change it at the beginning of every season and you should be good to go. If you use it commercially, follow the recommendation in the OM.
Gasses combine with the oil which gives it that dark color. This is normal and does not require a change, the oil absorbs it while retaining its lubricity.
Now that you've done your first change, change it at the beginning of every season and you should be good to go. If you use it commercially, follow the recommendation in the OM.
#5
09-21-13, 04:06 PM
Thanks Cheese - The air filter is clean and dry.
Re taking it back - I did consider that, but wanted to make sure i wasnt the culprit. Also, the spark plug looked a lot worse than I expected, almost like it had been burning too hot. I cleaned it, then replaced it when cleaning didnt work. The 2nd one didnt help either. Both were unusual to me )1st had very small post, 2nd had a V over the post. Replaced w old style RJ19LM after reading the newer one malfunctions a lot and can be substituted.
Re taking it back - I did consider that, but wanted to make sure i wasnt the culprit. Also, the spark plug looked a lot worse than I expected, almost like it had been burning too hot. I cleaned it, then replaced it when cleaning didnt work. The 2nd one didnt help either. Both were unusual to me )1st had very small post, 2nd had a V over the post. Replaced w old style RJ19LM after reading the newer one malfunctions a lot and can be substituted.
#6
09-21-13, 10:52 PM
Forum Topic Moderator
Well, the choke opens when it warms up, so there is likely a fuel issue in the carb. If it's dirt or water in the carb, then the bill will probably be on you.
