[Mike R]

Check for codes on the computer. There is a light that will flash different sequences of long and short if you have problems. I am wondering if one of your sensors is unplugged or bad.

 

[Mike R]

open or short in the throttle position sensor. here is what you need to test. On the tps plug, the red and black leads should test 5000 ohms. The black and white at idle should show 850 and the black white at wide open is 5000, on the wide open pull the cable up at the throttle body to ensure that it is wide open. All the above measurements are +/- 15%.

 

[Mike R]

So what do I do there? Sorry I am completely new to snowmobiles and I'm getting frustrated, LOL.

If you look at the throttle bodies you will see where the cable hooks up and turns the shaft that opens and closes them. At the chain case side there will be a sensor on the end of that shaft with 3 wires going to a plug. Unplug it and test the wires on the sensor end of the plug. When you do that also look for a dead spot when going from idle to wide open. It should show up as open or 0 on the multimeter.

 

[Mike R]

Ok update: the TPS checks out ok (I think) the lowest ohm was on the red wire and it doesn't move off of about five ohms. What I have found kinda interesting is when I first pull the cord and fire it up I can hit the throttle right away and I get big power and no problems but once I let go and hit the throttle again it is like it is starving for fuel. Also I moved the TPS sensor or turned it a bit and I do not have any fault codes now. Do you have any ideas where I should go now??

Probably to a repair shop after adjusting the tps. You need to have those ohm readings right or your computer does not send the right injector pulse length signal out.

 

[Mike R]

Hook it up to a car battery and try it. You may have to clean the smart valves also. You can try to trun it backward and forward a few times to clean it self. I have a pump in the basement for that sled. It has not run for a few years so i do not know if it is good as of now.