the 650 prairie deffinetly

 

The Prairie 650 has 42hp and over 38ft-lbs of torque at 4000 rpm, believe it or not the magazines say that the 650 is very detuned.

 

Which magazines? I read DW, ATV Action and ATV Magazine.Didn't notice any talk of the engine being detuned at all.Remember its not a true 650, only 633 cc's, and puts out very respectable power for that displacement.I just doubt that there's any big horsepower left in there to be had easily like trailhog thinks.

 

It was stated in one of the major magizines that the 650 has been detuned quite abite but almost none of the 4-wheelers or any of the old 3-wheelers have the number of CC's the the size suggest.

 

O.K.,

I'll weigh in on this. The 650 Prairie is one heck of a machine. When a "ute" (and I mean that in a nice way) quad can beat a true sport quad (400 EX) in a drag race it's got to be one fine machine.

Now when it comes to horse power, I believe that the Prairie has the Scramblers beat. The stock 400's hp is 36, the stock 500 H.O."s hp is 38, the Prairie's is 43. Mind you these are crankshaft horsepower, as no one has a reliable way to measure rear wheel horsepower on CVT machines. This is why a heavier (but not by much) Prairie can out accellerate a stock Scrambler. The Scrambler has the advantage of lighter weight and a more efficient drive system (chain), but this still can't over come the horsepower advantage of the Prairie.

When you talk about modifications the 400 Scrambler has them beat hands down. With the two four strokes, there isn't much you can do shy of getting a big bore kit to make more horsepower. Many people will say a pipe will increase horsepower, but on these two machines (Prairie & Scrambler 500) you're just wasting your money. There are certain "corked up" machines (a Raptor comes to mind) that you can get more horsepower from just a pipe, but these two just aren't it. Add a pipe to a 400 two stroke and watch the sparks fly. You should be easily able to beat a stock Prairie with merely a change of pipe on the 400. You will be making at least 2 more crankshaft horsepower, be lighter, and have a more efficient drive system.

Just my two cents.....

 

I agree that there are more ponies to be had on the Prairie. Do you really think that a 650 class twin cylinder with 4-valves per cylinder is nearly maxed at low 40 horses? No way. Hell, a 440EX can make nearly 50. Plus with a large bore and short stroke it revs fast to get it in the meat of the power quickly. Granted it will never respond to mods like a 2 stroke-but there's more power in there for sure.

 

Mike Chero,
Thanks for the update on the 500 ho horsepower. 38 hp seems more like it based on the races I've had with my friend. Where did you get that information? The 28 hp I reported is obviously incorrect.
Thanks.

 

I know that you can always get more power from ANY engine.I'm just saying that I really don't think the big Kaw has been DETUNED.
All I wanted to know was which magazine,,Trailhog and Jeffro??

 

I really can't remember which mag I read it in about the 650 being detuned , but I am good friends with me deal and told me before the mags ever mentioned it that Kawasaki had a 650 testing it and was having to detune it some before production , I get 3 mags ever month , I you have to read it for yourself I will try to let you know what magazine it was in , they could have easily taken some power away by just going to smaller valves and or carbs but they are still awesome ,reguardless !

 

Kingmort , read the January 2002 issue of Dirtwheels , the "2002 ATV buyers guide" , look on page 64 and continue on page 66. There you can read exactly what we said. Have a good day.