DirtDemon

Outboards are mostly 4-strokes now, but before they switched some used the direct injection to help with efficiency and emissions. I am just wondering why that didn't spread to the ATV/Cycle world, seemed like a good idea, but maybe they were problematic or something.

Thanks guys.

I love the 2-stroke.

ITP makes good tires, I am getting holeshots.

I would stay the same, definately don't go smaller though if you ride on rocky terrain, you won't wan't to loose any clearance, taller tires may make the bike seem a little sluggish, but you would have a higher top speed, also it may be prone to wheelies where the smaller tires would spin. Also for the rocks the more plies the better.

I am a member at everything2stroke.com and trx250r.net, I am pretty active on E2S, but I haven't even posted on trx250r.net. I like the E2S site, lots of good info for us 2-stroke lovers.

If use a taller tire, it is like using higher gearing, smaller tires-lower gearing.

I'm sure it does, but I can't imagine that a direct injected 2-stroke would be any more expensive than a fuel injected 4-stroke. But I could be wrong.

Cool, I used to have an '89 it was a good bike.

Isn't the Predator 90 a 4-stroke?

Amsoil Dominator or Golden Spectro. 40:1

The whole reason for banning the two stoke is the pollution issue, what I don't understand is that many two stroke outboards use a direct fuel injection, this way there is no unburnt fuel being pushed out of the exhaust port, this not only increases efficiency, it decreases pollutants. So why don't manufacturers just use this design instead of getting rid of them all together? Direct injected two strokes are lighter, faster, more efficient and less polluting than 4-strokes.

Thanks, what kind of bike do you have?

I usualy wear a nice sundress and high heels, the heels are good for kickstarting stubborn motors like the CR500.

I think, and don't take this the wrong way, that the 4-stroke is for the less intense, the ubridled and un-predictable nature of the 2-stroke is meant for those who crave balls out power. I have ridden the best that both worlds have to offer, and I contend that 4-strokes will never equal the snap and responsiveness of a 2-stroke.

I appreciate the offer to help, I have realized though that this site is set up just like another site that I post on.

I can outrun just about every thing but a well modded Banshee, but my TRX500 is just about useless in deep mud, even with good mud tires, the 4x4's are best in the mud, and they can be very fast too, ever seen the Can-Am Renegade 800, those things haul as*.

Thanks, lots of hard work invested in it, and it definately has plenty of power. The only complaint I have is the vibration, I am going to do some motor work in the next few months;porting, shaved head, bigger carb, a custom pipe, and a new crank that I will send in to have balanced, hopefuly that takes care of the problem.

Accidentaly posted originally in some one elses thread, so I thought I would move it out here. Anyways, hello every one, my name is Josh, I love riding and anything else to do with the ATV world, here are some pics of my bike. It's a TRX500R, the frame is hand made and super strong so it can handle the CR500 motor and all the abuse I put it through. Holding up well so far and it is fast as hell, I love it.

Hello, my name is Josh, and I'm a Quadaholic. I can't leave my bike alone, whether I'm riding it or tinkering, I can't get away, and I love it.

TRX500R, CR500 powered monster 4-stroke killer.