Onan 6300 propane generator

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oldcobia
Posts: 109
Joined: Thu Jan 27, 2022 7:56 am
Location: N. Florida

Onan 6300 propane generator

Post by oldcobia »

95 Safari 35' with Onan 6300 propane generator. When I try to start it runs very rough and get smell of propane then stops. Seems like it is flooding out. Does this setup use liquid or vapor and would it have a float bowl with possible needle stuck? Having trouble getting someone to correctly diagnose issue. Thanks
1995 Safari Sahara 35’ 5.9 Cummins MD3060
wolfe10
Posts: 222
Joined: Sun Oct 27, 2019 4:12 pm

Re: Onan 6300 propane generator

Post by wolfe10 »

Look at your propane tank. Do you have only a VAPOR port with a hose attached OR do you also have a LIQUID port. If liquid, that will be for the generator.

If liquid, next is to look in the generator compartment itself and see if there is an external propane regulator or if it is inside the generator itself.

Then we may be able to direct you.
Brett and Dianne Wolfe
Ex: 2003 Alpine 38'. Ex 1997 Safari Sahara. Ex 1993 Foretravel U240
Moderator, FMCA Forums 2009-2020
Chairman, FMCA Technical Advisory Committee 2011- 2020
Moderator, http://www.dieselrvclub.org/ (FMCA chapter) 2002-
oldcobia
Posts: 109
Joined: Thu Jan 27, 2022 7:56 am
Location: N. Florida

Re: Onan 6300 propane generator

Post by oldcobia »

It has liquid line. Cannot see external regulator. Thanks
1995 Safari Sahara 35’ 5.9 Cummins MD3060
CactusTwo
Posts: 70
Joined: Mon Oct 28, 2019 12:06 pm

Re: Onan 6300 propane generator

Post by CactusTwo »

Regulator will then be on top of the gennie towards the left and a hose leading to the carb. As the fuel is already in a gaseous state it does not use the carb bowl. I did down load a manual by putting in the model and serial # complete with the "series" letter into a search engine (google) and was able to get a complete manual. I did rebuild the carb anyways as well as the filter and solenoid valve where the propane attaches to the gennie. Some tweeking and mine works
Len and Brenda Nugent
Alberta, Canada, fulltimers since 2012
1996 Safari Serengeti 3740 front door, bought in Feb 2019
Cat 3126 300hp, Allison MD3060, VelvetRide suspension
sold 2008 GMC Duramax 3500 and 37' Cedar Creek 5th wheel
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