I'm pretty sure that you have to re-jet once you install the Boyesens. Go to dootalk.com and do a search on them, there are a lot of people that have used them. If you can't find answer there just call Boyesen, they were helpful when I spoke with them. I'm going to install them on my wife's 05 600HO once the stock boots are bad, I'm on set number 2 right now.
Russ
I did not think about the fact you have an SDI never need to rejet mybad on that I'm still old school thinking about carbs.
I did call Boysen I was told to lean it out 1 to 2 sizes. My gut feeling is that it will run fine. My wife's idea of going fast is 1/2 throttle. The only reason I'm looking at the Boysens is because I do not want to replace again if I don't have too plus they are more afforadable than the factory ones that failed. I bought the sled 2 years ago used so I do not know if these have been replaced or not once already. I've heard horror stories about carb boots failing and would like to be proactive on the replacement product not just throw parts at it if a better option is available.
Thanks for the responses
Think snow!!
Go with the Boysens. Better quality ( IMO ) than V-Force. All Billit and they last. After the stock ones melted in my '01 800, I installed Boysens. They were still in perfect condition when I sold it 7200 miles later. Not much of a performance difference, but a good, long lasting product.
The reason they recomend getting changes is because they pull and atomize (not spelled right) fuel better. There have double the petal surface, which pulls fule from the carbs easier and more efficiently.
Use some Black Silicone adhesive and cover up any surface Cracks. Unless there all the way through Silicone Adhesive lasts longer than the original Rubber. I have done this with at least 10 Doos without a problem.
If you want to spend a bunch of extra Money go for it. A couple years ago all these Boots were backordered and we had to use Silicone and then never replaced the Boots. The Silicone works and if someone tells you it doesn't its because they never tried it.