19’ axys silber turbo running rough.

[rulonjj]

I bought a 19’ axys 800 with 1500 miles. It has a silber on it running 7 lbs.

When I bought it, it ran rough but only when the pipe got hot so I replaced the pipe sensor. Next trip out it ran super good. Crisp and clean. Consistently pulling 8300 rpm.

About 3 hours into the ride I was pinned up a hill and realized it was kinda sputtering but only running 200 rpm low. A few more pulls and I noticed it was getting worse then it kinda popped (backfired) and after that it ran like crap. 1000 rpm low with a bottom end bog that would throw me over the bars.

I headed to the truck about a mile away across a meadow. Was doing about 7000 rpm with 1/2 throttle when the det code came on and it immediately died.
It started right back up and made it to the truck but it was trying to died the entire way. Any input on this?

It idles just fine at 1600-1700 rpm…only tries to die under throttle.

 

[A@ron]

Check exhaust valve push pull cable?

 

[Spiderman]

Thread '2020 Axys bogging intermittently' https://www.snowest.com/forum/threads/2020-axys-bogging-intermittently.463870/
Some things to check in this thread

 

[sledhead9825]

Reeds

 

[mtncat1]

I bought a 19’ axys 800 with 1500 miles. It has a silber on it running 7 lbs.

When I bought it, it ran rough but only when the pipe got hot so I replaced the pipe sensor. Next trip out it ran super good. Crisp and clean. Consistently pulling 8300 rpm.

About 3 hours into the ride I was pinned up a hill and realized it was kinda sputtering but only running 200 rpm low. A few more pulls and I noticed it was getting worse then it kinda popped (backfired) and after that it ran like crap. 1000 rpm low with a bottom end bog that would throw me over the bars.

I headed to the truck about a mile away across a meadow. Was doing about 7000 rpm with 1/2 throttle when the det code came on and it immediately died.
It started right back up and made it to the truck but it was trying to died the entire way. Any input on this?

It idles just fine at 1600-1700 rpm…only tries to die under throttle.

did you check the plugs ?

 

[rulonjj]

did you check the plugs ?

Just did. One of the plugs broke so the center electrode was sliding up and down 1/4”. ???????

 

[mtncat1]

that is super common and the first thing to look at on the mountain . i'm glad you found it

 

[mt.sledder]

Just did. One of the plugs broke so the center electrode was sliding up and down 1/4”. ???????

That’s typically caused from detonation. I would add some more av gas.

 

[mtncat1]

That’s typically caused from detonation. I would add some more av gas.

that 's interesting and definitely some thing to consider but the br9es plugs have been having issues for a few year there is a thread dedicated to it . maybe i need to reread the thread .

 

[rulonjj]

That’s typically caused from detonation. I would add some more av gas.

Seems strange to be detonating with 50/50 at 7 lbs.

 

[mt.sledder]

Seems strange to be detonating with 50/50 at 7 lbs.

What elevation are you running at?

 

[rulonjj]

What elevation are you running at?

9200-10,000

 

[rulonjj]

My sled still has a random bottom end bog…. Seems to show up when I chop the throttle but not all the time.

It has new plugs, good fuel, new pipe sensor. I pulled the plugs and they were wet so I’m assuming it’s an over fuel bog.

I’m going to check valves and reeds next.

 

[rulonjj]

Reeds

Just checked them. Perfect condition….