All ActivityMost RecentMost LikesSolutionsRe: Onan 5500 Generator in Holiday Rambler 1998 EndeavorThanks for input. gas lines were changed Last fall. 2022Re: Onan 5500 Generator in Holiday Rambler 1998 EndeavorProblem solved, Generator 5500 is running smoothly and runs my air conditioners. I put the original fuel pump and carburetor after cleaning back on. Today I got a Bosch 5-blade relay that is located in air cleaner box. I started Generator and it runs excellent. Problem solved. I want to thank everyone for all your input and suggestions. It was greatly appreciated. Thank you all.Re: Onan 5500 Generator in Holiday Rambler 1998 EndeavorThe spark plug gap is set at .025 and plugs come set at .035 could an issue. I always kept oil level at full mark, some say that oil level should be at low level mark because dip stick is wrong????? Is there a sensor on oil level that could be causing Onan not to start??Re: Onan 5500 Generator in Holiday Rambler 1998 EndeavorYesterday I spoke to friend at RV Dealership and he told me to hold stop button in for 15 seconds to prime carb. I did that and generator started and ran for about 3-4 minutes. After that it would not start. Today we disconnected gas line from main tank to fuel pump and hooked hose up to fuel pump and dropped hose in gas can. Generator would not start. We come to conclusion that new carb. is not working and are going to clean old one and put it back on and see if Generator starts.Re: Onan 5500 Generator in Holiday Rambler 1998 EndeavorI took fuel line from fuel pump and stuck it in gas can and no luck still doesn't run. I checked old carburetor and it seems clean and okay. I think the new carb. is stuck and not working properly.Re: Onan 5500 Generator in Holiday Rambler 1998 Endeavordoesn't run long enough to check. Besides I had breakers turned off on Generator.Re: Onan 5500 Generator in Holiday Rambler 1998 Endeavorthanks, I will check for spark. How do I get a manual for this Model (1997)Onan 5500 Generator in Holiday Rambler 1998 EndeavorGenerator runs sometimes and then shuts off. Replaced with new: Spark plugs, oil change, oil filter, air filter. "still no run" Replaced: New carburetor, New fuel pump, New fuel filter, No gas line hose from carburetor to fuel pump. "still no luck" The in line 10 amp fuse above stop/start switch is okay. The 20 amp two blade fuse by breakers is okay. I help "stop button" in for 15 seconds to prime Gen. and then hit start button and it started and ran for 60-90 seconds and then started getting rough and shut off and would not start. I ordered new 5 blade relay plug under air intake to see if that is problem. Are there any other in line fuses that could be problem Any suggestions would be greatly appreciated.Onan 5500 Gen in RVRight above the stop/start switch there is black plastic part with plastic door on right end and when you open it there are two in-line-fuses inside. There appear to be spare ones. Where are they for? I don't see any place for in-line-fuses. On end by breaker switches there is a 20 amp red breaker fuse with two blades. Can find anything in my manual and can't find manual on line. Onan Marquis 5500 Model 5.5 BGMFA11578G Serial G973713439Re: ONAN MARQUIS 5500 GENERATORThe gas tank is between 3/4 and full. I will check rubber fuel line and probably replace it regardless. Thanks