RX1 Sled wont come off idle

[egoman]

Got called for a ride today. 05 RX1.
started and ran the sled on the trailer and it ran fine and revved up like its supposed to.
Drove to where we were riding and it performed flawlessly, still on the trailer.
Got dressed and went to get it off the trailer and it would idle (Not as good as before but idling) but the motor would not rev up. You could hear a change in pitch with the throttle and it would backfire a little here and there. I blew back the fuel lines and checked all the plugs. After re-starting it still wouldn't do any more than idle.
Anyone here got a magic pill for this?

 

[74Nitro]

Got called for a ride today. 05 RX1.
started and ran the sled on the trailer and it ran fine and revved up like its supposed to.
Drove to where we were riding and it performed flawlessly, still on the trailer.
Got dressed and went to get it off the trailer and it would idle (Not as good as before but idling) but the motor would not rev up. You could hear a change in pitch with the throttle and it would backfire a little here and there. I blew back the fuel lines and checked all the plugs. After re-starting it still wouldn't do any more than idle.
Anyone here got a magic pill for this?

Install brand new spark plugs first of all.

 

[maim]

X2. Sounds like it flooded and fouled the plugs.

 

[egoman]

It appeared to be throttle cable related. had installed bar risers.
Now I have a different problem LOL