Last week, riding some extreme trails in Couger Buttes in the SoCal high desert, I was not too happy.
The power was just not enough for what I wanted. I wanted more off idle so it will help me to lift the front to pivot turns or to challenge rocks with zero approach. I want some more in the middle so I can lift the front over obstacles easier. I want more revs so I can use more of each gear and to avoid going flat in long hills. Basically I want more everywhere!
For many years I have been riding KTM 300 which I thought have the best engine in the business. Last July I had the chance to try 300RR and my jaws dropped! Even better than the already perfect KTM engine? I was sure it was impossible!
So buying the Xtrainer which basically has a tuned down RR300 engine would give even better low end, at least that was my expectation. This is why I was disappointed a bit from this "nummy" engine.
1st thing to do was to wind out the power valve adjuster. That helped some in the middle as the bike picks up RPM's faster. Still sleepy low end.
2nd I removed the power valve spacer which effects the overall volume of the pipe.
Good results, the bottom end woke up some! All you need for this small mod is 4 M5 screws 10mm shorter and 1 minute of your time.
But I wanted more! :)
I borrowed from a friend an FMF Gnarly pipe to try. The good news was that it bolts right up. Perfect clearance everywhere from the frame, cooling houses and shock.
The great news was that it was just it! The bike picked up horses everywhere from bottom end to very nice over rev. It's not RR yet but it's just perfect for this bike and actually I winded back the power valve adjuster almost a complete turn to calm it down a bit.
Roll on drag race from 2nd gear against 250RR and they are bike to bike up to par without any problems.
One important word for anyone that want to use this pipe and does not have experience with 300's - Buy a slow throttle like the G2 Dirt tamer to get better control and secondly, wind the power valve adjuster at least 2 turn in from flush.
Last but not least, I want to thank Dave from Get Dirty Beta dealership in Morongo Valley CA. Great guy, great rider and excellent dealership!
He can fix you with any Beta item you can think of and said to be cheaper than direct purchase from Beta USA site.
And the results? Not bad I think! :)