Ok I ran out of light tonight installing my Cycra Handguards. I took the throttle (tube) apart to clean out where the tube rolls on the handlebar. I was having a hard time getting part 13 back in place. Its a small white plastic "guide" for the two throttle cables. Can I run the cables without this part? If it matters this is a 2003 XR250R. I want to get it back together tomorrow morining so I can ride.