taking my raptor to the dyno in the next few weeks, what should I expect and what questions should I expect to have answered?

never done this before, and don't want to be given a bunch of bs....

do I need to bring anything with me,other than my atv and wallet?

Could someone give me an idea of what happens and any troubleshooting answers I need to be aware of?

thanx

 

Why are you taking it there? I can tell you right now you have about 43-45 HP if the jetting is right. If you are taking it there to get the jetting dialed in perfect then i guess that would be the only viable reason. I think that people on here could get you real close on the jetting for Free!

 

I would adjust the valves and make sure your air filter is clean before you go.

"do I need to bring anything with me,other than my atv and wallet?" That depends. If they'll let you work on it bring tools. Take any jets and needles along that you have and if it's going to be worked on or tuned you might want to bring it there with the front plastic off.

Does the dyno have an A/F ratio monitor?

 

i am taking it there so I will be able to know 1st hand what my raptor puts out hp wise and to see if my jetting is dialed in at 148/146 with stock pilot jet.

I am new to this, and am seeking to learn....and sometimes the forums here are full of BS and tall tales[img]i/expressions/face-icon-small-smile.gif[/img]

I want my machine running perfect[img]i/expressions/face-icon-small-smile.gif[/img] that way, if it acts up...I know what it is suppose to sound like and perform like...easier to troubleshoot down the road...etc...

knowledge is power and I am lacking both...lol

 

Sixsixt has a point.

If the dyno does not have an air to fuel ratio meter, your wasting your money. The aim is to have the carbs set up right, and in doing so, HP comes naturally.

If they do have one, do what sixsixt says, plus remove your front plastics. This will save time if they have to jet it and they cannot charge you for taking their time doing the work you can do yourself.

Make sure your float levels are set right. 3mm and check it with a clear tube.

When they jet it, ask them to get the air to fuel ratio around 13:1, not the typical 14.7:1. 14.7 is ok for power and fuel efficiency, but a ratio of around 13:1 will give you a bit more HP and torque.

Make sure they get this ratio across the RPM range. Not at one spot like some other rip off tuners I have seen. Lastly, make sure the tire pressures are the same at the back and put a little more air in them to make them stiff. The stiffer wheels will help reduce bounce on the dyno.

 

Is that 3mm above the stock level or 3mm above the mating surface?

 

3mm above the mating surface.