I have the nos system on my kfx-400 , i dont know if it is runnning right. For some reason i cant really feel the boost. those who have , can you tell when you hit the button. I am running the 15 hp shot. Also how much of a boost did it give you.Where just smoking quads after the install?[img]i/expressions/face-icon-small-happy.gif[/img]

 

Sorry, I can't answer your question. A good buddy of mine has a Kfx400, and I was wondering if you can please tell me approx. how much the Nos System costs for the Kfx400?

Thanx and Happy trails...[img]i/expressions/face-icon-small-smile.gif[/img]

 

MURDR You got to set manifold presure with a manometer, start with around 4-5 inches and work from their.

 

What do you mean, set the manifold preasure. Please explain?

 

Quote by fastgas from boondockers

"It's called a manometer and it measures pressure in inches of water (typically from 0" to 20"). a digital one will cost around $100, but you can buy a water column one for much less($20?), or you can make your own by forming a u-bend with clear tubing attached to a board, fill it with several inches of water, and make markings with a ruler so you can measure how far the water moves in inches when you apply pressure (try blowing on one end of the tube to see how little pressure you need) I haven't made one myself, but I've read how to do it and it seems simple enough. Tee this device into one of your vent lines to measure the pressure on your carb float bowls. Be sure there is fuel in your carbs, spray for onlya second(the nitrous will ice up your airbox with no air flowing through it) and take an average of your readings(the water column will tend to bounce a little) the pressure you need in your carb float bowl will depend on the amount of nitrous you are using, bottle temperature, carburator design, number of cylinders, and other factors that can not be determined exactly. It is best to tune using the most pressure your motor will take without going to rich, which is different from one motor to the next. With a room-temperature bottle, I'd start with around 4-5 inches for 15-20hp and tune from there. If the motor is not obviously to rich on the nitrous, keep increasing pressure until you know your are rich, then start reducing the pressure a little at a time until the motor cleans up and runs the strongest. A manometer can help get to a baseline faster, but you still need to tune by how the engine runs."

 

murdr do you have adjustment for fuel and nitrous on your manifold? you could be putting to much fuel in it witch would make your bike rich and not felling the nitrous.

 

They sent me an old manifold and sending me a new after i send the old one back. i will get back to you.

 

OKAY .