Onan 4KW starting issues
Our 2014 Newmar Baystar has the 4KW gas Onan generator. I find that starting it after it sits for a few weeks is difficult. It turns over readily, but won't catch. I find that primeing it helps. Is th...
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It's the nature of the beast. Asked the Onan Rep at the FMCA Rally in Madison, WI last summer. His fuzzy answer confirmed my conclusion that the Onan 4K carb system is a POS, and deliberately not changed to insure a revenue stream for new carbs. They consciously do not make replacement parts. If you let one set 6 months without starting plan on a new carb. I told him that expecting the old farts who own these things to start them up every 30 days was head-in-the-sand thinking. I gathered from our conversation that they won't fix it as the engine part is not made by Onan but is actually a Kuboto engine.
A shut off will help (will be putting one on the 4KW in my new MH). Unless I prime it takes 3-4 crank sequences to start. Using a shut-off and running it dry will help in hot weather. I'm considering having a "T" adaptor with outboard motor type connection. Running a small tank of half fuel-half gumout was an old marine dealer solution to fixing outboards (with tiny carb jets) that sat over the winter. Never had trouble with my outboards in the spring after learning that.
A shut off will help (will be putting one on the 4KW in my new MH). Unless I prime it takes 3-4 crank sequences to start. Using a shut-off and running it dry will help in hot weather. I'm considering having a "T" adaptor with outboard motor type connection. Running a small tank of half fuel-half gumout was an old marine dealer solution to fixing outboards (with tiny carb jets) that sat over the winter. Never had trouble with my outboards in the spring after learning that.
