I own a 2GM20F Yanmar on my '88 O'Day 302. I have encountered a starting problem and am looking for anyone who has had a similar problem and might be able to offer a solution. Occasionally the the engine will not start. Nothing, as if it is disconnected from the battery. If I move the transmission shift from neutral to forward or reverse and back to neutral it starts fine as it normmally does. Any suggestions as to what the problmen might be would be appreciated. Spencer
Yanmar Start-up Problem
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Doesn't turn over???
When you hit the starter, does it try to start by turning over but won't stay started. I know with mine, I typically start it slightly forward than neutral (transmission still not engaged), If I try to start in neutral and the engine is cold, it will turn over a few times before it will kick in. Perhaps someone with even more knowledge will answer this for both of us....
When you hit the starter, does it try to start by turning over but won't stay started. I know with mine, I typically start it slightly forward than neutral (transmission still not engaged), If I try to start in neutral and the engine is cold, it will turn over a few times before it will kick in. Perhaps someone with even more knowledge will answer this for both of us....
Switch?
Do you by chance have a neutral safety switch? If so being out of adj. or sticking could be the problem. Good Luck, Bryon
Do you by chance have a neutral safety switch? If so being out of adj. or sticking could be the problem. Good Luck, Bryon
I've had the same experience
I've had the same experience this weekend on a beneteau 352. I shut down all the electronics, frig, radio and vhf. Waited ten minutes, then it kicked right over.....I at first thought that I had drained the batteries but I was only sailing for 2 hours, after an hour and half of motoring. The lights were bright but there was not even a bit of turnover, nothing just bright lights.. Please let me know if you get a good answer!
I've had the same experience this weekend on a beneteau 352. I shut down all the electronics, frig, radio and vhf. Waited ten minutes, then it kicked right over.....I at first thought that I had drained the batteries but I was only sailing for 2 hours, after an hour and half of motoring. The lights were bright but there was not even a bit of turnover, nothing just bright lights.. Please let me know if you get a good answer!
Where's your button
located? is it possible that you have a short and the movement of the cable affects the wire to the ignition?
located? is it possible that you have a short and the movement of the cable affects the wire to the ignition?
I solved my problem this way...
Noank I had a problem with my 3GM30F starting. The engine's about 16 years old. I replaced the fuel injectors in May and have had no problem since. I was a bit intimidated by doing this (mechanically challenged), but with help from an unchallenged friend the operation proved painless. It costs about $315 for the injectors plus banjo washers, o-rings, insulators, and gaskets. Actual operation only took about 2 hours. I've now got no starting problems and much more power with the engine. To diagnose the problem I pulled out the injectors and had them tested at a local Yanmar dealer. All three failed both with spray pattern and a "pop test" of the internal springs. Rich
Noank I had a problem with my 3GM30F starting. The engine's about 16 years old. I replaced the fuel injectors in May and have had no problem since. I was a bit intimidated by doing this (mechanically challenged), but with help from an unchallenged friend the operation proved painless. It costs about $315 for the injectors plus banjo washers, o-rings, insulators, and gaskets. Actual operation only took about 2 hours. I've now got no starting problems and much more power with the engine. To diagnose the problem I pulled out the injectors and had them tested at a local Yanmar dealer. All three failed both with spray pattern and a "pop test" of the internal springs. Rich
Yanmar starting
It sounds like we have/had the same problem (I have a 2GM20f in a 1986 Hunter 28.5). So far, I've done the following, which may or may not, have solved the problem, but are good things to do anyway: -- disconnected, sanded, cleaned and lubed ALL electrical connections on the batteries, main switch, main panel, solenoid, and instrument panel. Also checked to make sure all crimps on all connectors were tight. I also cleaned, retightened, and lubed the main ground on the engine block. -- a friend who has the same engine and problem, told me that he now starts on one battery or the other, but not on "ALL or Both". I am trying that, too, and so far have not had the problem. That may indicate the main switch is failing, but Im not sure of that yet. -- if the problem returns, I think I will replace the starter button and/or the key ignition switch. -- if the above procedures do not cure the problem, I'm guessing that the solenoid needs to be replaced and perhaps the brushes on the starter need to be replaced. Keep me posted on your progress and I'll do the same for you. (hmseconomy@aol.com)
It sounds like we have/had the same problem (I have a 2GM20f in a 1986 Hunter 28.5). So far, I've done the following, which may or may not, have solved the problem, but are good things to do anyway: -- disconnected, sanded, cleaned and lubed ALL electrical connections on the batteries, main switch, main panel, solenoid, and instrument panel. Also checked to make sure all crimps on all connectors were tight. I also cleaned, retightened, and lubed the main ground on the engine block. -- a friend who has the same engine and problem, told me that he now starts on one battery or the other, but not on "ALL or Both". I am trying that, too, and so far have not had the problem. That may indicate the main switch is failing, but Im not sure of that yet. -- if the problem returns, I think I will replace the starter button and/or the key ignition switch. -- if the above procedures do not cure the problem, I'm guessing that the solenoid needs to be replaced and perhaps the brushes on the starter need to be replaced. Keep me posted on your progress and I'll do the same for you. (hmseconomy@aol.com)
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