I have a MTD mower with a Briggs & Stratton engine (Model No. 9L902).
When I went to start it I noticed that the primer bulb was not giving
any presure. I tried to adjust the throttle and there was no tension on
the springs. I pulled the air cleaner and the springs are definitely
Does anyone have any suggestions? I also wanted to see a diagram for
the springs for this model engine to see if one is missing, etc.
Thanks in advance.
If the spring isn't under tension when the engine isn't running, it's
normal. I wouldn't mess with it at all.
If the primer bulb isn't working, I would first verify that it isn't doing
anything and then focus troubleshooting there, not at the governor.
Replacement bulbs are fairly easy to find.
Thank you both for your responses.
Any suggestions on the best place to find a primer bulb? I do not think
it is working because when I push on it, no pressure is being built up.
I can order one from Briggs and Stratton unless you have other
John R wrote:
If you have a small engine repair shop in your area, they would have one. If
not order it. It's only a couple of bucks. There is a snap ring holding it
in. A small screwdriver or such should pry it out.
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