RV.Net Open Roads Forum: Tech Issues: onan marquis 7000 generator /no start

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > onan marquis 7000 generator /no start

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev  |  Next
Sponsored By:
Stickkman99

va

New Member

Joined: 05/04/2022

View Profile


Offline
Posted: 05/06/22 07:58pm Link  |  Quote  |  Print  |  Notify Moderator

the pump for the generator only dribbeled.......the inline pump i put on it flowed good but it still would not start unless i kept the choke closed....

Stickkman99

va

New Member

Joined: 05/04/2022

View Profile


Offline
Posted: 05/06/22 08:01pm Link  |  Quote  |  Print  |  Notify Moderator

i think the pump it is bad although it runs just no pressure.....maybe the carb is stopped up also since it would not run with the inline pump...??

Gjac

Milford, CT

Senior Member

Joined: 08/16/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 05/08/22 01:00pm Link  |  Quote  |  Print  |  Notify Moderator

I don't know what kind of choke you have but mine is a Bi-metal spring that opens up once the engine warms up. What kind of a choke do you have? Try adjusting or resetting the choke to where it starts. From your description it only starts when the choke is closed or on. From there it should open as the engine warms up. How old is your genset?

Gary45

Oshawa, Ontario, Canada

New Member

Joined: 08/14/2020

View Profile


Offline
Posted: 05/08/22 01:49pm Link  |  Quote  |  Print  |  Notify Moderator

Main jet is plugged, it screws into the bottom of the fuel bowl, usually just unscrew clean and replace.

Stickkman99

va

New Member

Joined: 05/04/2022

View Profile


Offline
Posted: 05/09/22 03:21pm Link  |  Quote  |  Print  |  Notify Moderator

ok....got the generator running........main jet was clogged.....everything running good.....now to change the oil and filter...i dont have a manual....so what oil should i use??

Gary45

Oshawa, Ontario, Canada

New Member

Joined: 08/14/2020

View Profile


Offline
Posted: 05/10/22 06:33am Link  |  Quote  |  Print  |  Notify Moderator

15 - 40 any brand

Kpackpackkelley

Bryan tx

Senior Member

Joined: 08/12/2012

View Profile


Offline
Posted: 05/10/22 06:52am Link  |  Quote  |  Print  |  Notify Moderator

Gary45 wrote:

15 - 40 any brand

Good info.

RLS7201

Beautyful Downtown Gladstone, MO

Senior Member

Joined: 10/26/2002

View Profile


Offline
Posted: 05/10/22 12:19pm Link  |  Quote  |  Print  |  Notify Moderator

Air cooled engines run hotter than water cooled engines. Thus the manufacture does not recommend multi viscosity oils. BUT! that ruling was for non-synthetic oil. Standard oils loose their multi viscosity capacity when run to hot and thin out. So when running multi viscosity oils in air cooled engines, always use synthetic oil. I have the same generator as you and have used 10W-30 synthetic for 22 years with no problems.

Richard


95 Bounder 32H F53
460/528 stroker
Web Master
MWPSchooners.com
First brake job
1941 Hudson


Gary45

Oshawa, Ontario, Canada

New Member

Joined: 08/14/2020

View Profile


Offline
Posted: 05/10/22 01:13pm Link  |  Quote  |  Print  |  Notify Moderator

RLS7201 wrote:

Air cooled engines run hotter than water cooled engines. Thus the manufacture does not recommend multi viscosity oils. BUT! that ruling was for non-synthetic oil. Standard oils loose their multi viscosity capacity when run to hot and thin out. So when running multi viscosity oils in air cooled engines, always use synthetic oil. I have the same generator as you and have used 10W-30 synthetic for 22 years with no problems.

Richard

Regular multi viscosity oil is fine in an air cooled motor, air cooled motors do not have a thermostat to make them run as hot as water cooled motors. There are no air cooled car or motorcycle engines anymore because they cannot get them to run hot enough for modern fuel injection pollution control systems.

joebedford

Sheltering at home

Senior Member

Joined: 09/03/2003

View Profile



Posted: 05/10/22 02:09pm Link  |  Quote  |  Print  |  Notify Moderator

Gary45 wrote:

There are no air cooled car or motorcycle engines anymore because they cannot get them to run hot enough for modern fuel injection pollution control systems.
Uhhhh, Harley? Some are liquid cooled but most are not.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev  |  Next

Open Roads Forum  >  Tech Issues

 > onan marquis 7000 generator /no start
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2022 CWI, Inc. © 2022 Good Sam Enterprises, LLC. All Rights Reserved.