05 Rs vector mtn no power!! Help!

[Vector88]

hey guys
We finally have our first snowfall and had the sled out for a rip. I got a mid to high end bog. Absolutely no quick throttle response. I can probably get the sled up to 90-95 km with a very deep bog sound. She don't per like a kitten at all lol the sled runs fine at idle. Easy to start. I had picked this sled up in the spring with this same issue. Sled had turbo removed and the job wasn't finished. I removed head shim replaced with new own head gasket. Stock clutching, jets in carbs are back to stock, carb is cleaned. Do anyone know what this sound be? I also changed the cam tensioner and did the timing . I unplugged the coils as it were running that's not the problem. Any suggestions on what to try next? Thanks

 

[MrSled]

Clean your carbs

 

[givemeaboost]

Since it had been turboed I would do a compression check to make sure it's not something wrong deep down inside the engine.


Ken.......

 

[Vector88]

Compression is between 200-205 across the board . I found a huge hole cut in the air box! Maybe that's what's causing my trouble

 

[givemeaboost]

Patch it up and try it out. That's going to make it run lean.

Ken........

 

[MrSled]

I do not think that air box mod is the issue.

 

[Vector88]

It's hard to know what to believe haha seen this post in search on this site.

 

[givemeaboost]

It can't hurt to try it. When they put pod filters on the rx1 they had to increase the jet size to 165 to get rid of the lean problems.


Ken.....