"lemjim".....there won't be any issues restarting the Onan, but their fuel filter can be a bear to service.
You need a fuel line wrench, I'm brain farting on the name of it right now, but it's basically a box end wrench with a small slot cut out so you can slip the wrench over the fuel line. The fuel line fittings are soft and can be easily rounded with a regular wrench. I believe it's 7/16" and can be purchased at any auto store.
There is a bolt holding the fuel filter down. Loosen the fuel lines before removing the bolt and then remove the bolt and disconnect the lines.
Once the filter is out, there will be fuel dripping. I have cone shape caps, like you cut off the end of a tube a silicone, that I use to plug the fuel lines while I'm moving the new one into place and starting one of the lines.
Get both lines on and snug them. Bolt the filter back into place and then tighten the lines.
Lastly, an old mechanic's trick is to tie a rag around both wrists while doing the work. This will absorb any fuel running down your hands and onto your arms.
Remember, NEVER use a "trouble light" when working with fuel unless it's a sealed unit.
