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Sunrunner new to me

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I picked up a Sunrunner and I had a question or 2. This is a 12hp with a hydro. The first question I noticed that I had to hold the hydro lever in whatever speed I wanted. It wants to return to neutral. Is that normal or do I need to fix something? Second I noticed after running for awhile it wanted to surge in reverse. Forward was fine but in reverse it surged some of the time.

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You will have to take the cover on the rear of the steering column off to access the friction nut for the hydro control. I had to do this about once a year when I mowed with it every week. No biggie.4i

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excellent thank you guys. I may have found the issue with the surging too. the little hydro release lever was engaged but not fully depressed. I haven't had time to test it since I found that, but I hope that was all it was. I meant put a picture in here to start with so I'll add it now.

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I think I have everything working right now. The hydro lever is adjusted, the steering cables are adjusted. I need to give her a bath and do a little welding on the deck. It had a set screw missing inthe deck lIft handle so I replaced tha. It's coming along nicely. Thanks again foryour help. Tom.

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