Sorry for the squid post but... I did a lot of research prior to buying my first atv yesterday ('03 prairie 650), and put the first 45 miles on it today. Ok more than 45, but I'm not counting the distance I put on while airborn. Anyway I found videos of people doing wheelies on these things. How in the he77 are they doing that with a cvt tranny?

Ok, now tech. ?'s.

I'm almost through the first 60 miles(actually at 1/2 - 3/4 throttle which is still impressively fast) and am getting ready to do the break in service.

Would I be better off waiting until 80 - 100 miles before the service to make sure the engine/diffs are broken in, or is 60 adequate?

What type of easily accessible oil filter shoud be used? I can't find a part # in the owners manual and would prefer to buy a Fram, or similar than pay 2-3 it's cost to buy from a kaw. dealer.

Are there pros/cons to using full synthetic oil in the front diff?

Being that almost all of the break-in miles have been in 2wd, is there any point in changing the front diff. fluid?

I've seen posts regarding a "snorkle" intake. What are the benefits of this? What other mods can be done to increase power/ability, without making it too loud as it will be used for hunting.

I've yet to read anything negative about the bike, are there any common problems that should be addressed?

thanks for the info.

 

Mine wheelies in high range at the drop of a hat. K&N, airbox mod, dynojet, and epi black driven spring helped it do that better.

I don't think you have to do the service at exactly 100 miles, if it is not convenient. Just ry to get it close.

fram ph6017a, ph6607
napa gold 1358, 1365
stp smo-017
bosch 3300, 3323
and a lot more. I think mazda miata 1.8l engine uses the same filters.

The front diff oil viscosity affects the visco lock stiffness, which also affects steering difficulty. Using synthetic will help the steering to not stiffen up as much in the winter and the visco lock get too loose in the summer. Change it often (even if you only drove it in 2wd), since lots of shavings come off the clutch pack (it is working even in 2wd). You will see brass flecks in the oil when you change it.

the snorkle people talk about is from diamond G (www.diamondgracing.com) and it fits like stock but flows better. More power.

You can get more low and mid rpm power from a dynojet kit. You can also get power from a twin air filter or a K&N.

The reprogrammed cdi will also give you power qithout making it louder.

Aftermarket Exhaust will improve power and make it louder. There is a stealth muffler system that you can place temporarily behind your muffler in case you get a louder exhaust. I don't know anyone that uses it.


Common Problems? The shift linkage will need an adjustment sometime, and the stock tires really suck.

 

Thanks for the reply, couple other ?'s in ref.

What item from dynojet are you referring to? Is it the jet kits or something else? I'm a little limited in what I can do with the jetting as I live at high altitude and it's hard enough to get enough air into the carb w/regular jets.

What is usually modified on the airbox?

Lastly, what is the black spring and what does it do?

thanks again.

 

I use dynojet's jet kit (it is a stage 1). It comes with a rather large assorment of jets. You actually do not have to use them, the needle is probably the best part of the kit. The needle will more correctly apply fuel at low to mid rpm range than the stock needle. I like mine.

You may not need any airbox mods with a Diamond G snorkle. Other people have been inserting uni-vents (little filtered vent holes) in their airbox lid.

The black spring? It is a much stiffer driven pulley spring. It keeps higher belt tension for one thing, reducing slippage. It also raises the rpm at which the drive pulley begins to close, thereby making your 650 feel a little lower geared. It does not affect top speed, since the drive pulley still opens the same amount just at a higher RPM. Additional benefits include quicker takeoff, easier wheelies, and better ability to turn big tires.

It took me about 35 minutes to install the black spring, I think. It is a quickey if you have the right tools.

 

NYROC,

How do you like the K&N? I have one but I am not using it due to all the negative things I have heard.
Most of my riding is in the mountains of Utah. I remember an earlier post where you stated that you used to live in Provo so my question is "Is a K&N filter decent in Utah's dry dusty climate?

thanks

 

I am not a filter expert, but as far as I know they are just as good. I use K&N on my truck. The 650 K&N filter does not have as good of a seal as other K&N types that clamp on with a hose clamp, so I grease the edges to insure that no dust gets in. The inside of my airbox stays cleaner than it was with the stock filter, so I know no crap gets in.

Also, K&N's flow better, which you may need for higher alitude.

 

If you are ever back in the state we'll have to go ride in American Fork Canyon...

thanks for the input

 

Dash,

Most will not believe me, and will disagree, but I find the K&N to NOT filter anywhere near adequately. I run a foam type filter. I hear Accel is coming with a dual stage foam filter with about 450 new applications for powersports...

 

My choke was messed up & I could not get it up. Took the plungers out, stretched the springs, put some lithium grease on the brass pistons, & she comes up with ease in high or low right off the line or during acceleration, granted the 589's are hooking up!

 

Me doing a wheelie on my P650 hehe

PIC

With the stock tires I would just get in grass, lean back a little while rolling slow stab it....up the front end comes every time. I got 589's now and I havent tried a wheelie yet....I will though, but it prob won't do it, we'll see.

I brought my p650 in at 60 miles....60 or 100 I don't see it making a differance.

Oil filter....uhh i don't have an answer for that one

I would use whatever the manual says for the front diff. It will be cheaper than synthetic probally anyway

I'd change the diff fluid in the front. Did you go in 4wd at all...? if so definately change it.

I'm happing with how my p650 is stock. I don't think i would even be able to tell much of a diff with a new pipe and jet kit. Plus I don't want to have to have the headache of trying to jet it right. If i ever ride someone elses with mods and see a diff then i will beleive it does something to spend that much money. keep it stock and spend money on new tires instead i say.

hope my opinions helped

dave