truckin88 104 #1 Posted August 24, 2012 Guys my dads 520 is cranking but not starting. The carb is getting gas....I see 12v at one side of the coil pack....I am guessing this is a spark issue...spark plugs are wet....I am pretty sure all safety switches are good...neutral, pto and seat switch all cut out the cranking when activated. /open Also in the air filter housing there is a bolt with a hole in the middle the hose attached to it goes no where...any ideas where the hose goes? Thanks for the help, Will Share this post Link to post Share on other sites
truckin88 104 #2 Posted August 24, 2012 Ok so I know the hose is the air filter sensor and I see where it goes...changed the spark plugs but still no spark... Share this post Link to post Share on other sites
ericj 1,579 #3 Posted August 26, 2012 check the onan service manual. it tell you how to check your coil and ignition module its not all that hard it take you step by step through the check out process. i have told several other people about this and it helped them all. if you don't have the manual pm me with your email address and i will send it to you. eric Share this post Link to post Share on other sites
