new member trail rider

Hello, just joined in i've been reading for a while though.Will post this question on my 350trx blown pump fuse, replaced 10a fuse wont start follow manuel no voltege @pump jump cut relay voltage now get new relay same trouble, jump relay pump hums wont pump fuel, get new universal fuel pump (smallest pump) works runs but only with jumper in relay, relay has good ground,also connected to coil primary.not sure how the cut relay should work? any help? quad is show room new gone through all connections good.