I am thinking about getting a power kit for my four wheeler and i am wondering if it is worth it. They come with an air filter, outwear, needles and jetting. If you know, what is the average MPH gain from a power kit just on average for any four wheeler. Also i wanted to know if it is hard to install the jetting. thanx for any help![img]i/expressions/face-icon-small-confused.gif[/img]

 

The K&N filter and outerwear alone are worth the money. They make great filters! Also, jet kit will add some more power, but I don't know any exact specs, sorry. I own a Yamaha Warrior, so I don't know much about Polaris and how hard it would be to install the jets.

 

in short, no. Just buy the filter and jet the machine correctly.


See this thread Jetkit Hooplah

 

Put a jet kit on my Scram. I guess I really have not noticed much. You have to take all the plastic and the gas tank off to get to the carb. Took me about 2 hours to do it. I think once i get a pipe and clutch kit i will notice more.

 

I have installed jet kits up the gazzoo.
Out of all I have done I believe the needle alone is worth it.
What you get is improved air fuel mixture adjustment over stalk (0-25% throttle) A new needle wich graetly improves mid range (25-75% throttle) and sized main jets depending on mods and altittude (75-100% throttle)
In some kits for constant valocity carbs you will recieve a drill bit to drill the slide lift hole larger to increase slide speed.
Of course these kits are developed around K&N filters and after market pipes, but in all cases throttle response is graetly increased.
As for top end speeds, don't expect much if any. As far as power across the rpm range expect gains.
If I was to guess top speed gain with a pipe and filter included I would gues two to three mph on average on a broad amount of bikes

Hope this helps, I'm not trying to be a smart --- just trying to help!

Oh yes, the kits include a 800# and instructions that are for do it your selfers