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Honda GX390 Need service manual

This is a discussion on Honda GX390 Need service manual within the Small Engines forums, part of the Tech Support Forum category. Picked up a John Deere Pressure washer with a Honda GX390 engine on it. Was told it needed a head


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Old 03-17-2017, 07:41 AM   #1
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Picked up a John Deere Pressure washer with a Honda GX390 engine on it. Was told it needed a head gasket. Does anyone have a service manual for the GX390 that they would share or lead me in the direction where I may could download it? Please reply soon.
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Old 03-17-2017, 08:37 AM   #2
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Honda Engines | GX390 Owner's Manual

you will need the serial number but hope this finds your manual you are looking for.
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Old 03-17-2017, 08:39 AM   #3
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Honda Engines - Parts Look Up - Official Site

for parts
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Old 03-17-2017, 09:53 AM   #4
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Will that have the torque specs and diagrams?
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Old 03-17-2017, 09:59 AM   #5
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They have diagrams as for torque settings you will have to look in the manual or even email honda they should be give you the required information.
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Old 03-17-2017, 12:00 PM   #6
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You can download the shop manual that would the torque values and the wiring diagrams or you could buy the full service manual. As for parts your will the serial for that and many place let you view the IPLs.

Below is a link to the shop manual. You want to download the UT2 version.
Shop manuals - Honda Engines
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Old 03-20-2017, 01:06 PM   #7
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Thanks guys for all the advice. Have the head gasket and ready to put it back together but I have one more question? Now my question is. All the GX390s I see on google shows the pull rope like to pull it clock wise to start but mine has the rope to be like where it would be pulling counter clockwise. Please refer to the pic of mine. This what I find on the engine
GCANK
1232022
QDW9

Please reply soon.[/IMG]
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Old 03-20-2017, 01:08 PM   #8
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image hosting above 5 mb
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Old 03-20-2017, 05:58 PM   #9
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Yours is just rotated from the normal. And yes all of engine the rotate CW including your engine when look from the front of the engine. The recoil starter dogs would not even engage if it was rotating CCW.
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Old 03-20-2017, 07:13 PM   #10
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Thanks for the reply. Was putting it back together and I think it has some hairline cracks around one of the holes that the valve goes thru. Finish up tomorrow and hope for the best.
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