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Replaced cover with unpainted new Yanmar part 183250-66511. Works great now !

Yep

Proof of concept et Tu brute Also noticed my run handle has been bent over. No wonder it's impossible to fit a socket over that bolt. And that is the root cause I think - the pawl is on the run lever VERY close to where it begins bending. Phew RCA for why it wouldn't run didn't take but a...

Page 126 - 0013-06 notes troubleshooting steps for this. Since the LOP cable is disconnected I think I just need to check continuitty between L4 (R) and TB1-2 ... And J2-B to TB1-3... It was shipped FEDEX so it's probably been dropped hard. If that fails im going to take the Run lever cover...

All the parts are there. I tied the red lever to the frame and the run switch still moves left.

The run level flips to the off position and I’m a little slow I guess. https://youtube.com/shorts/V4zpa51ecdM?si=YNPf6u8v4pzHKFq8

It started and ran for 39 seconds at 67° when I cold started. Had time to observe all gauges seemed in the green range. Also verified LOP cable position does nothing. Next attempt 13 seconds. Last night after it had started 6 times... and fully warmed up... less than 3 seconds.

Aye there’s a specification for the cable length the tube is in good shape so I can make the cable from a bicycle brake line. That would allow me to reconnect the lop cable but I realized the lop cable operates in reverse of what I thought. The control board pulls the cable when there’s low...

Ooowhee. Seller offered a decent partial refund. I’m going to eat this tm and chew on it.

Tested the extremes and the middle position of the cable. Unit shuts down immediately after starting run lever is pulled to stop position and it shuts down. I’m going to try and return it as it was advertised as fully running. Also found it interesting MTBF of the MEP531a is like 210 hours or...

I’ll try Dewey and report back

Bless you! It’s the low oil pressure cable that broke P/n 95-8082 on page 285. Didn’t see much about sourcing that part.

got my MEP531a and there is only a frayed disconnected end on the run switch, seller said it was intact before shipping. Unit runs as long as i forcefully hold the throttle open. Otherwise the run switch switches off after a few seconds of running. Even with the stop switch tied to run...