On Sunday, January 7, 2018 at 2:14:09 PM UTC-5, Jeff Stout wrote:
replying to Whaler Guy, Jeff Stout wrote:
Same problem with our GP5500, broke the dogs in the pull starter. Used
emergency nylon strap around 2 inch hub, you could pull this boat anchor
around the yard trying to start it. Sad part is Generac lays no claim to this
problem and this problem usually becomes evident at less than 50 hrs of run
time. When you leave a comment on there site there's not response it just
disappears?.

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Usually those hard to start problems with small engines that are infrequently
used are due to fouled carbs. Did you take it apart, clean it? You can
find rebuild kits on Ebay for $10, probably a new carb for not a lot too.
I just had that problem with my snowblower. In an hour I had it running.