Husqvarna Te310 Athena 2010 Backfires, Does Not Start, Does Not Idle

Hello, last sunday i went out to a ride with my bike. One day full of riding, runs perfect. Monday i took out the bike and wash it good. After i wash it, it started fine. I took out the injector body, to change the throttle body union, it was cracked outside, and i decided to change it. After i put everything back together, tried to start it, nothing. Backfires, when it starts, runs very badly, lots of smoke and does not idle. I dont know what to check, where to start from. I have it from 5 mounths now, and first time does that. i took out the water temp sensor connector, and tried that way, nothing.

Sorry for my writing, if you know what should i check, please tell me.

You need to adjust the TPS (Throttle Position Sensor).

How do i do that? But why it changed? It worked perfectly one day ago. How i can adjust it?

Its mounted with 2 small screws (M4 if I remember right) on the throttle body. If you changed the TB you have probably re-screwed it from the previous? Unless you didnt mount a used with the TPS already there. If so it was adjusted to fit the previous bike and needs to be adjusted anyway.

You can adjust it with a TPS-tool or build one by your own. I always adjust my bikes by ear. Loosen the two screws so the TPS can be turned freely by hand. Than hit the starter engine button and turn the TPS til it starts. When its running, turn the TPS to a position where your idle is at its highest point (highest rev). Than adjust the idle if needed. Thats the easy way. A TPS-tool is to prefer but not a must. If your electric start doesnt work, you need some help from a kicking friend . You can also turn it a mm and kick, another mm and kick and so on.

Looks something like this.

https://www.frankmxparts.com/Thrott...a-CRF-250-450-250R-450R-250X-450X-Keihin-JT7H

My throttle body looks something like this. Can it be adjusted?
The tps can be adjusted?

Hmm, I had a 2011 with the Mikuni injection but never touched the TPS. Since then only Keihin bikes. The TPS should be able to adjust. Loosen the bolts a turn and try to turn it by hand. I have never heard of a TPS with no adjusting possibilities. The mounting holes should be oval? If not I cant help you .

Thanks, i will check tomorrow, but i dont think so because it has a pin that goes right in the throttle body.

TPS on a 2011 TE310 has no adjustments, it can be adjusted with Ibeat and the cable.