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John Deere LA105 won’t start

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Bigjohnson New Member Total Posts : 1 Scores: 0 Reward points: 0 Joined: 2025/06/12 21:06:21 Status: offline 2025/06/12 21:09:59 (permalink) 0 John Deere LA105 won’t start Have a 19.5 Briggs in a John Deere . Have replaced starter twice ,& solenoid and battery . After running it won’t start back . Just barely bumps the flywheel . Tonight I adjusted the valves to factory specs hoping that would help. It started first try ,& then 5 min later started doing the exact same thing . I’m at my Witt’s and with this thing Help !!! Quote #1 1 Reply Related Threads
SRTsFZ6 Super Member Total Posts : 2255 Scores: 80 Reward points: 0 Joined: 2018/11/18 07:20:58 Status: offline Re: John Deere LA105 won’t start 2025/06/13 06:50:20 (permalink) 0 Might want to check the compression release. Looking under the valve cover, the exhaust valve SHOULD have a slight bump when near the compression cycle. Also, make sure you don't have a leaky carberator leaking fuel into the cylinder Fluid doesn't compress and would hamper/stop cranking.. . Scott Quote #2

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Bigjohnson

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2025/06/12 21:09:59 (permalink)

John Deere LA105 won’t start

Have a 19.5 Briggs in a John Deere . Have replaced starter twice ,& solenoid and battery . After running it won’t start back . Just barely bumps the flywheel . Tonight I adjusted the valves to factory specs hoping that would help. It started first try ,& then 5 min later started doing the exact same thing . I’m at my Witt’s and with this thing Help !!!

Quote #1

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SRTsFZ6

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Total Posts : 2255
Scores: 80
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Joined: 2018/11/18 07:20:58
Status: offline

Re: John Deere LA105 won’t start 2025/06/13 06:50:20 (permalink)

Might want to check the compression release.

Looking under the valve cover, the exhaust valve SHOULD have a slight bump when near the compression
cycle.

Also, make sure you don't have a leaky carberator leaking fuel into the cylinder
Fluid doesn't compress and would hamper/stop cranking..

.

Scott

Quote #2

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