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Thanks for the sugestions, think that is what i am going to do, just didnt like going from neutral into gear and having the shift hard, its on a boat manual transmission ie damper plate only np clutch

Thanks for the reply, will be back at the engines next week and give that a try

Hi no I am not positive, that was the best way to describe the vibration. its just strange that it the same on two new engines that only have about 20 hrs each, low idle vibration was from day one out of the box first run

The same engine is used by beta marine,with there marine exhaust system, this version seem to idle at 850rpm with no problem, Really hope i can solve the problem thanks for the comments

Thanks for the reply,changing the rpm as little as 100 rpm will take the rough idle away,1100rpm very rough idle 1150rpm idle smooth, wondering if it is not the injectors maybe they are not "calibrated " for a low rpm,

Hi thanks for your reply,i have this problem on two new "OUT THE BOX" engines on about 20 hrs running time on each, no agent that i can talk to here in darkest africa There has to be some way of adjusting the idle speed lower.The importer i bought these engines from has now gone out of business...

Hi, I have a small Kubota 3 cylinder engine (D1005) that that will only idle smoothly at about 1150 rpm, which is bit high for my application At 1000rpm it almost seems that one injector is not getting fuel and very rough idle, adjust the idle speed up slowly and it suddenly idles perfectly I am...