Stihl Fs90r Primer Bulb Not Filling

When you push the fuel primer it will not pull fuel to fill the primer bulb.

Stihl fs90r primer bulb not filling. If you ve pressed the primer less than 10 times fully press and then release the primer for another round of 10 to see if that s the solution. Simply pulling on the starter rope will not draw fuel to the engine. Pressing the primer a few times before starting will deliver the fuel. Dad couldn t get it started after a new carb and coil so he just got a new one drained the gas and set it aside for several years.

Another cause of the primer s filling problem could be the bulb itself. I was wanting a dedicated brush blade. If not the bulb may be damaged. Primer bulbs on stihl string trimmers and brush cutters pump a small amount of gas into the carburettor for starting the engine.

The primer is a small plastic bulb with an attached line that feeds the string trimmer fuel. Small perforations on the rubber could inject enough air into the fuel system to make the suction too weak. Final report is now the bulb won t even compress when it s seated on the primer flange. So the fuel line in the flange is seriously clogged.

Without gas in the combustion chamber the engine will not fire. Haishine air fuel filter spark plug 2pc primer bulb for stihl fs90 fs90r fs100rx fs110r fs130r hl90 100 km100 km130 trimmer 4180 120 1800 4 0 out of 5 stars 8 9 99 9. Replace any worn or cracked bulbs. I have changed the spark plug and put new g.

If not does anyone know how to find a part for stihl. Because i m not even finding the whole carb for km 55 zama carb with brass fuel lines no part number that i can find. Kizut c1q s174 hl100 carburetor for stihl fs87 fs90 fs90r fs100 fs110 fs110r ht101 ht100 hl90 km90 km100 sp90 string trimmer parts w fuel line filter primer bulb kit 4 2 out of 5 stars 25 15 88 15. When i shake it there is a rattle sound seems like it is near the gas tank.