There is actually quite a bit of heat that comes out of them. On the clutch side I also drilled out the rivets and removed the tool pouch. Allows for a lot more air movement.
I have the xxx mod rods knee vents on my pro. Zero issues out of them. you don't cut out the entire vent. You use a hole saw and drill random holes. Then there is still support Behind the vent.
Yes its a good idea. 3 turns is what most guys do. We have three sleds running like this. One with 3 seasons and two with two seasons. No fouled plugs yet.
Boss bought it for his 163 xm. So we will se how it does. We were looking at the parts and it actually comes with a different bracket specifically for the 146.
You definately need to keep some sort of load on the electrical system. Most people will install resistors to take the load. I installed a second voltage regulator. Its seems alot easier. it just bolts onto the belt cover and plugs in.
That video there was taking at a rally. All there other videos have disclamers on them. This group actually has an atv club which is registered under the SATVA. They also do regular trail and ditch cleanup. there doing everything right to keep the sport alive.
Lots of room to camp once your in there but the road is usually a disaster. even if its dried up there are usually pretty good ruts. Its doable but you just have to take your time.
We have 3 Pro's in our stable and haven't had any engine issues. The only thing I can say is that from brand new we turn up the oil pump. One 2011 with right around 2000km, One 2013 with around 1200km and the other 2013 has arouns 700km.
It could be done. just use the dragon motor mounts and straps. But the entire electical system would have to be changed. The Pro motor only runs 2 injectors vs the dragons 4. Different ECU, different voltage regulator setup and so on.