2006 Mule 3010. New fuel pump , spark plugs and air filter. Pulled fuel bowl , removed jets and checked for debris. Engine starts , idles and revs up. In gear only has about 1/3 of normal power and loses power on hills. Any ideas why the loss of power? Started engine and idled. Pulled forward plug wire and engine killed. Put wire back on / started n pulled rear plug wire and had no change engine continued to idle. Put screwdriver in plug boot to test for spark. Very light spark. Even touched screwdriver and got a light tingle. I’m thinking ignition coil now ?