Need Help! 450 Rhino Starting Problems
I have about reached the end of my rope with our ’06 Yamaha Rhino, YXR45FAVGR. I picked this great little Rhino up from a friend that bought it new in ’06 for his horse ranch and has had the same problem we are having for three or four years and just got tired of messing with it and just bought a newer model. He sold it to me for a song, knowing the problem.
Here is the issue; when it has been just sitting, it starts right up with nothing more than a bump of the key. That same thing will happen time and time again until after it has run around a while, then if you stop the unit and turn it off, when trying to restart it, it simply will not start.
When trying to restart, it actually acts like it is fuel starved. After it sits for a while; and hour or so, it will fire right back up. Weather does not have any effect — same thing summer or winter.
So what have we done for far to address this issue:
1. We have removed the Yamaha vacuum fuel pump and installed an electric fuel pump system.
2. Replaced the coil.
3. Replaced the CDI
4. Replaced the stark plug
5. Replaced the fuel
Nothing has made a difference; well with the new CDI performance has improved; however, just this afternoon once again we turned it off while working and when I tried to restart it, the starter ground and ground — nothing. Again, it sounded like it wanted to fire up, but again would not. We waited about an hour or so and it fired right back up.
SSSOOO, we are at the point that we are considering either rebuilding or replacing the carburetor. Before we do, we thought we would throw this out to see if anyone has had any experience with this pain-in-the-butt problem.
Any takers? Many thanks in advance.