Jul 9, 2016 · A little dated of a thread, but my wife rides a CRF150R on trails in Pennsylvania. Her mods are: •Suspension rebuilt for trails •Crf450 front brake •GT216AA front tire •GPR steering stabilizer •G2 throttle tamer •R&D Flex Jet •Promoto billet Kickstand •Flywheel weight

Jan 6, 2007 · I tend to agree with you, I am considering putting in the 130 main again. The bike did start much easier with the WB setup, The anemic mid range may be able to be adjusted out, I left it at 1 & 1/2 turns out, I will adjust it out a quarter turn at a time to see if I get any gains.

Jan 24, 2015 · I bought a low hours 150R online, heard it running on the phone. The prev owner say's it's never been worked on since new, 25-30 hours total. I found the exhaust valve clearance at .005" & .006", the book say's .010". If the clearance was off, I would expect it to be more than spec, not less,...

Apr 15, 2007 · What are the "stock" jetting specs on the 150R?? Wondering how essential the JD Jetting kit is?? I know for many bikes its essential, but how does the stock setup perform for most?? I plan on putting a heavier flywheel in and MRD pipe (when I buy the bike in a few weeks), and was wondering what j...

Feb 14, 2021 · Hi all, new to the forums and just bought a CRF150RB . . . really liking the bike but think it would be better with a longer swingarm. I don't have welding skills so cannot make this myself, and am looking to purchase an extended swingarm. Alternatively, I'd be happy to send parts and payment to ...

Apr 9, 2009 · ok so ill try to put 2 sides to this. i have a 150r big wheel. its got great power, and pulls really hard all the way through the gears. i havent had any problems with mine, other than a broken fork seal, and i really love it. btw, im almost exactly the same as you, im about 5'3 or 5'4 and 112 pounds. i have heard the kx100 is a really good bike, and of course its a 2 stroke.

Dec 27, 2014 · Hi, I recently bought a 07 crf150r for my daughter. Wasn't running well off idle. Cleaned carb, still was having same issues. After reading many posts i replaced the stock pilot jet size (40) with a 45. Nothing changed. replaced fuel mixture screw with an r&d flexible one, same issues with fu...

Mar 29, 2010 · First, you're not too big for the bike. I'm 5'8" and plenty of riders are a lot taller than me that ride these. But all I did was get a triple clamp that allowed me to move the bars forward and a set of Renthal CRF150r High Bars. The bars are nice because they less sweep than most high bars. That opened up the cockpit quite a bit.

Apr 26, 2008 · I have been doing quite a bit of CRF150s lately, I have 3 charts I'll post. All of these changes I'm posting have been run within a two hour time frame between runs for accurate data. Here's a stock pipe v a FMF 4.1 Megabomb on a otherwise stock bike.

Feb 26, 2022 · My 2014 crf150r has an issue where it doesn’t want to start cold no matter the temperature outside. It’s the same in -10° weather as it is in 98°+ weather. It revs out fine on choke but when you turn the choke off if you try to give it throttle it dies. It idles fine with both choke on and off. W...