What kind of power does the CR500 make in its natural state?

 

One word. alot.

 

Is your bike the one with the KX500? If so, does it have a counter balancer? Is it as good or better than the CR500?

Thanks....

I'm the one looking to buy a CR500 motor and put it in my 400EX frame. Most people have given me negative feedback about the CR500, vibrates, too much power, to complicated to put in my bike, etc..... My only concern is if it really viberates REAL BAD. Does yours?

 

have you not been reading? Yes it will give you a ton of vibration issues. And yes it is really bad. I dont see the power being an issue. Thats why your putting the motor in the frame if for the power. If you didnt want power you'd run just the 400 motor. But the vibration will kill ya homie

 

Never done it (put a CR500 engine in a quad frame) but I DO know all about the vibration of the CR engine.
This is not just a buzz, it is a wicked vibration that will have your arms numb from about halfway down from your elbows. Maybe mounting the engine on rubber, as well as the handlebars, and having handlebar dampening weights will do the trick for you, everyone has a different tolerence level.

As for the power that the CR500 makes...My buddies was a 1985 model (e-mailed him to find out) and he commented that the guys he raced with actually wished they would smoothen out the sudden power surge. We are talking A-class motorcrossers complaining of too much power coming on too suddenly!!!! I think in later years, they did change a few things to make the power build more linearly, instead of the sudden power surge.

In my OPINION, if done right, the engine should be managable in a quad, the extra weight of the machine, and the extra torque required to turn 2 big tires should dampen the sudden surge. You may need to change the swingarm to keep it 'in balance' for the extra power. It will need to be longer, but I don't know how much.

If you do get this puppy off the ground, be sure to let us know how you like it! Sounds like it would be a real rush to drive.

Farmr

 

Ive known a few people over the years who have put them(cr500) in trikes and quads, but never heard about one in a 400ex. I dont know much about the ex, is there room for a radiator in there? Good luck on your project[img]i/expressions/face-icon-small-smile.gif[/img]

 

I'm not claiming to be some sort of genius here, but a lot is spelled like this, 2 words..........




I know what you mean, the KDX would have more snap than the XR, but i use to take 150+KM trips on the old girl, and i didn't want to strap gas to my A$$! (hehe, i rymed!)

For the vibration issues, there is bar inserts that you put in the handle bars that cut back on a fai bit of vibration. The CR250 we have vibrates, but not a lot...............but mabey it has a counter balancer? (96)

 

I'm not claiming to be some sort of genius here, but a lot is spelled like this, 2 words..........



rymed?????????????? Try rhymed. lol I can't say to much, because I used spell check for rhymed

 

mabey is also spelled pretty bad. I think it's maybe. And for the other guy, i believe its "too" when referred to as how you were stating it [img]i/expressions/face-icon-small-smile.gif[/img] but who's checkin' right? heh

 

Had a 1984 CR 500 many years ago. If you were in the open and had room to open it up it was awesome! On tight trails, or hill climbing it was the nastiest bike I have ever rode. Give it much gas and it would spin out from under you. Try to baby it and it didn't have enough fly wheel to keep that big piston moving, and it would stall. When it stalled it was a mother f@$*#er to restart. I blew the sole out of several boots starting it. That CR 500 sent everyone who ever owned it to the emergency room. God I hate that bike. By around 1990 or so the CR 500 had much more usable power, and started much easier. Do yourself a favor and avoid the mid 80's engines.