Completely out of ideas so maybe someone can help! Got my 07 Honda CRF 80F back up & running after a few years sitting there at my folks house while I lived out of state. Petcock assembly, lines, spark plug, fuel, oil changed. Carb cleaned, jets triple checked, lines, the whole works. Getting fuel, getting spark, idle was nice low & perfect. Running great no hesitation nothing! Take it out for a 10 mile ride out in the desert no problems at all. I let it sit maybe a week & a half just will not start even tried the ol bump start, nothing. Compression has always seemed low never had a problem kicking over until now. Still gets spark, yadda yadda. Only thing I did notice was an unusually large amount of fuel coming into air filter area. Plug seemed a bit damp with fuel aswell. Possibly flooded? Carb causing the issue? I'm out of ideas & going crazy help me thank you ): Read more: 2007 Honda CRF 80F won't fire back up!