Good Sam Club Open Roads Forum: Onan 4000 MicroQuiet - Quasi No Start (new carb needed?)
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 > Onan 4000 MicroQuiet - Quasi No Start (new carb needed?)

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Powertour

Nevada

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Joined: 08/08/2019

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Posted: 09/23/20 09:10am Link  |  Quote  |  Print  |  Notify Moderator

Chum lee wrote:

160 hours use in 5 years is low, IMO. Is this genny being exercised regularly? (I suggest 20 minutes, once a month, every month)

Chum lee


I've only owned the coach for a little over a year and during that time I have exercised it at least 1x every month (as a minimum). It's parked at my house so it's very easy to step outside and fire it up once and a while (if we're not out using it on a trip).

The reason for the low genset useage is the coach is equipped with some solar capability hooked up to an inverter (that's wired to some of the outlets in the coach). That, combined with the fact we rarely boondock, equals low genset use.


2015 Itasca 25b Ford E350 V10

Powertour

Nevada

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Posted: 09/24/20 06:43am Link  |  Quote  |  Print  |  Notify Moderator

Update:

- Pulled carb out

- Hit as much of it as I could with carb cleaner (bowl area, main jet, fuel cut-off solenoid, etc). Didn't see anything in particular while cleaning it but we're talking specs of dirt / fine layers of gum can cause issues.

- Reinstalled everything

Fires right up now. Not sure how long it will last. May eventually eliminate (bypass) the solenoid if I get problems again here in the short term.

enblethen

Moses Lake, WA

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Posted: 09/24/20 07:14am Link  |  Quote  |  Print  |  Notify Moderator

Now, run some Seafoam through your fuel system. Suggest a little heavy on mix as shown on can. Make sure you run genset long enough to get Seafoam into carb. It should remove much of the gum. Make sure you run genset under load!


Bud
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Pace Arrow

2003 Chev Ice Road Tracker


Powertour

Nevada

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Posted: 09/24/20 08:06am Link  |  Quote  |  Print  |  Notify Moderator

enblethen wrote:

Now, run some Seafoam through your fuel system. Suggest a little heavy on mix as shown on can. Make sure you run genset long enough to get Seafoam into carb. It should remove much of the gum. Make sure you run genset under load!


Plan on doing that soon. Heading out this weekend so I'm out of time to mess with it. I did get some fuel line at Autozone yesterday when I picked up some Seafoam so I have the stuff I need now to eventually run some directly into it (next week or 2 most likely based on my sched).

RLS7201

Beautyful Downtown Gladstone, MO

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Posted: 09/24/20 09:50am Link  |  Quote  |  Print  |  Notify Moderator

It looks like no body bothered to check if your carb has a fuel shut off valve, which it does. I really suspect that's your problem. Maybe a bad wire connection?

Richard


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