Okay it didn't take me long to ask for some help, so here goes. Can 
     anyone suggest things to cause the throttle to remain open during gear 
     shifts. I have to pause for a second or so during shifts to let the 
     revs drop enough to change up a gear smoothly. Could this be the 
     deceleration fuel shut off valve? If so how do I test it's 
     functionality?
     
     
     Thanks and regards, Mike