Yanmar IGM starting procedure

T

teejayem

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My Yanmar throttle control has the usual forward and reverse positions with a red button in the centre I'm told for revving in neutral.When I queried the fact that the red button is stuck solid and does nothing with the previous owner he suggested that its never been an issue and suggested I ignore it
However when turning the engine over it seems to need some throttle or it vibrates quite a bit in early tickover.
My question is this- can I give it some throttle prior to turning over on start up or do I have to keep it in neutral to avoud damaging anything?
Sorry if sound a bit thick-my first diesel!!
Any thoughts?
Tom
 
Follow the link. will tell you how to start the engine. It is imperative you get the red button working as it disengages the gearbox and allows the engine to start without being under load. You need to half to 3/4 open the throtle when starting the boat.
http://www.yanmarhelp.com/
Paul
 
The 1GM should be cranked at full throttle with the red button out. Once it fires reduce to half imeditaly and then back to idle once its got going. It will start with less throttle but will require more cranking.

So yes - best to free the button up so you can control the throttle without it being in gear.
 
Mine will start with the throttle in the "idle" (upright, neutral) position and the decompressor closed - in summer.

At this time of year - no chance! I have to disengage the gear lever and open the throttle 2/3, press the starter button to crank the engine with the decompressor open, then drop it.
 
As others have said, the button needs to be released! /forums/images/graemlins/shocked.gif The problem of them seizing up is not that uncommon, usually through lack of use, but they can be eased back into operation with care.

When it happened on mine many moons ago, I was able to free it by the (probably incorrect) use of WD40 plus a lot of wriggling from side to side with a very narow penknife. However, when a friend's went the same way, this 'method' didn't work. /forums/images/graemlins/frown.gif

We got it out by drilling a small hole into the end and inserting a tiny s/s screw. Judicious wriggling and pulling on this, allied to the use of the WD40, got it out.

Application of PTFE spray once in a while has kept it free. /forums/images/graemlins/smile.gif

HTH's
 
I had exactly the same problem as everyone else, WD40 worked for a while then it totaly stuck and no ncouragement would help. In the end I broke up the red pastic cover over the small metal button. This sorted it and it now works fine, im sure I will be able to find the button despite the lake of the red bit and it is so much easier to use.
 
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