Diffculty starting Onan 2500 genset

Well there you have it...so glad it was that simple. Again there are a lot of issues it can be. Many discussions over the years and a lot of tears of joy and pain. If your not running it on a regular basis, I would try and do it more often. A good 30 minute run say once a month will keep you confident it will run when you need it to. If you didn't go with all the rundown of suggestions, It's still a good idea to look these things over. If you have the model with the breather tube...spring is when the mud wasps start plugging these things. Check if you have it as it could happen at any time. This is one of the biggest fails that happens on a regular basis because people don't even know it is there.