Is a controller needed after installing hauck exhaust?

[98700]

Im looking into purchasing a apex, used. I test rode one yesterday, It had the hauck exhaust. It was extended to 144" from 121", using full 144" rails. The gearing was stock, I would be changing it if I was to buy.

Now When I was test riding it, it seemed to be a little boggy sometime down low. Like you would hit the throttle to go, and it would bog, then catch, then bog. So I would have to let off and try it again then it would go.

Does this sled need a controller to run its top? once in the upper rpm the sled ran top.

 

[jaydaniels]

Sounds like you are a bit lean bottom end. Fuel controller would definatly help but you might be able to adjust your CO settings to fix the issue. Do a search on Co adjustments if your not familiar. Basically it controls your fuel mixture at low end only.

 

[98700]

Ok I cant find any info on the CO, I guess because its to short of a word (CO). What is CO short form for?

 

[FLYBYU]

http://www.totallyamaha.com/snowmobiles ... stment.htm


Here you go.

 

[Phazernut]

To get best performance you will most likley need a fuel controller. I had the same issue when I had the Bender race exhaust on my Apex. I went back to stock exhaust rather than spending a pile of more money to not get a big gain. My money was better spent on clutching and gearing. I doubt the adjustment you will get stock will be enough to compensate for the exhaust.

 

[sheetwright]

True clutching is the best upgrade, but if you want to spend the money and slowly increase the horsepower...Your money is better spent with Ulmer IMO. I have delt with both and the performance gains, and service are better with Allen IMO. Just my .02

 

[aceltx09]

whoa,you got a water/methanol kit on a nytro!!!! How does that thing run???
Hopefully she doesn't become a meth addict. LOL

 

[APEX 06]

I hope not I just put one on my sled this past weekend.

 

[aceltx09]

How much the kit and installation all cost???

 

[98700]

http://www.totallyamaha.com/snowmobiles/aaTECH/ausertech/Fuel%20Ajustment.htm


Here you go.

Thank you, thats an easy thing to fix. I've found a few more posts on this after searching for a while. It seems to fix the issue for most.

And the exhaust s already in people, so im not wasting money on the exhaust Because its already installed.

Nik

 

[snowbeast]

http://www.totallyamaha.com/snowmobiles/aaTECH/ausertech/Fuel%20Ajustment.htm


Here you go.

Thank you, thats an easy thing to fix. I've found a few more posts on this after searching for a while. It seems to fix the issue for most.

And the exhaust s already in people, so im not wasting money on the exhaust Because its already installed.

Nik

I had that same exhaust and controller,it was a waste of money,i lost 2 mph,and it was a pig on fuel,i sold it the very next week,plus the noise was way to loud. best of luck.