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Adjusting shifter linkage

martinwinte How do you adjust the shifter linkage on a boat??? (Single control lever, mercruiser 120 I/O). My boats PO had installed new cables but the adjustment is off (in the water...on muffs if shifts fine..go figure).
If this is too long or involved to explain here...Tell me to go buy a manual... I've got one coming just impatient and want to work on the boat.
2001-08-28
Michael JD I've owned a '70's era Mercruiser 120 for a year, and have struggled with the shift control problem, still haven't solved it completely, am eager for wise advice. Did buy a Sealoc Manual, but it is so badly written I want to toss it overboard, exce 2001-08-28
kev_79 I am about to get a 78 mercruiser 5.0, and I am new to inboards. I was wondering if the "ignition cut-out switch" you were referring to is the same as a "shift interrupt switch" or something like that. I have heard reference to it, but am wondering how it works and if a 78 5.0 has one. If you all could address this when you answer, I would much appreciate it. Thanks. 2001-08-28
ODDD1 Well, guys, I"ll try to explain shift setup....the book is a good place to start, but it doesn't give you what you need....
#1.. What do you want? No stalling into or out of gear....full gear engagement before rpm's increase... the same travel on th
2001-08-28
K Lewis Jay the reply from odd1 is close. I cut my teeth adjusting m/c shifters. Do it in the water with someone at the helm. Put the boat into forward gear. Adjust the cable coming from the helm station so it is as tight as you can get it without rocking the shif 2001-08-28
Michael JD Thank you eljay and ODDD1. I think I'm getting closer to understanding the beast. But neither of you mentioned the non-negotiable six inches from barrel to post on the stern drive shift cable at the transom plate that I've read about. Is that important? 2001-08-29
Michael JD Oops, sorry, correct web address for the shift linkage adjustment process is: http://www.amarket.com/help.htm 2001-08-29
martinwinte Alright!!!! Well it is nice to know that 1) Others have the same problem I do. 2) People are nice enough to help out. I belive I understand (in theroy at any rate). I guess this weekend when I go to the lake I'll adjust some (hopfully I'll still get a day on the water and not on the trailer LOL). Thanks so much guys. 2001-08-29
ODDD1 Well, Michael JD, I do NOT agree that you should load the adjustment hard in either gear...by using up all the travel [and slack]you will force the shift spool in the gear case to rotate under load whenever the boat is moving...THIS WILL RAPIDLY WEAR OUT 2001-08-29

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Outboard Motors

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