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Old 10 June 2015, 16:24   #1
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Stiff throttle

So new rib purchased. 5.8 north craft 2001 very carefully looked after by previous owner. 90hp 4stroke outboard. Used twice in last 18 month. Tried it briefly in water tank seemed to work fine. Engaging gear and pushing throttle very stiff with outboard off. Tensioner loosened. Is it possible it's because engine is off? I.e. Should I take out before trying to loosen off/ lubricate/ replace? Don't want to be out with unresponsive throttle if possible.
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Old 10 June 2015, 16:28   #2
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Originally Posted by Iankristy View Post
So new rib purchased. 5.8 north craft 2001 very carefully looked after by previous owner. 90hp 4stroke outboard. Used twice in last 18 month. Tried it briefly in water tank seemed to work fine. Engaging gear and pushing throttle very stiff with outboard off. Tensioner loosened. Is it possible it's because engine is off? I.e. Should I take out before trying to loosen off/ lubricate/ replace? Don't want to be out with unresponsive throttle if possible.
You shouldn't try & engage gear without the engine running, try it in a tank or on muffs with the engine running. Make sure the prop is clear of obstructions/dogs/kids/gnomes etc.
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Old 10 June 2015, 16:39   #3
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Yep, you can damage the gearbox and strain the shift cable if the engine is not running and you try and engage the gears.
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Old 10 June 2015, 16:40   #4
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Thanks, sounds like plan 'A' 😬
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Old 10 June 2015, 17:00   #5
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Thanks. I'm hopefully leaping to conclusions then. Just didn't want to do first launch with stiff throttle. Makes me nervous 😬
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Old 11 June 2015, 07:30   #6
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My merc manual says you can put into forward without the engine running but if you put it in reverse, have somebody slowly turn the prop.

To identify what is stiff, disconnect the cables from the engine end and try to shift again. If it's still stiff, it is the cables or throttle unit. Disconnect the cable at the throttle and try again to narrow down the problem. My guess is stiff cables. Are there any tight bends in the cable route that would increase friction?

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Old 11 June 2015, 07:54   #7
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On many throlles there is a small bold under the hendle where you can adjust the "resistance".....Don't know to say in English very well, but if you find the bold and try it, you know what I mean..
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Old 11 June 2015, 08:03   #8
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Thanks folks had very quick go with muffles on and seemed better as suggested. Gonna suck it up and have a little inland loch session to get my head round everything. If it still feels too stiff will revert to removing cables to isolate stiffness. This is the new lady..Click image for larger version

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Old 12 June 2015, 11:32   #9
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Looks lovely,what Loch are going to run it in?
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Old 12 June 2015, 11:33   #10
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How does the throttle feel on the warm up lever?
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