CRF150RB Jetting - CRF150R/RB - ThumperTalk
Jul 25, 2021 · ThumperTalk. I'm new to the dirt bike world and fairly an amateur to engine work. I recently rebuilt my carburetor and re-jet it with jd jet kit. I originally put in according to their recommendations a red needle with the clip on the 5th spot, 150 …
Crf150f vs crf125fb - What Motorcycle Should I Buy? - ThumperTalk
Posted October 4, 2020. If you can find a CRF150F, IMO it's preferable to a CRF125FB. - it has a 2" higher seat height so more 'growing room'. - the 150F has a 5-speed gearbox versus the 4-speed of the 125FB. - the 125FB has a very low-to-mid powerband then falls flat on it's face at higher rpms. - both have the same size wheels/tires but the ...
CRF 150 r hard to start - CRF150R/RB - ThumperTalk
May 13, 2019 · Our starting sequence. 1st turn fuel on, fill bowl, turn off. Two quick twists of throttle, set choke, two slow kicks, re-twist throttle twice hold closed, two hard kicks and usually starts. Turn on fuel and away you go. Hot start in procedure if motor warm. Our 150R floods easily, and Lilly the 12 year old rider does not have much of a 'leg ...
UNSOLVABLE CRF150R HANGING IDLE - CRF150R/RB - ThumperTalk
Aug 19, 2017 · Now back it out two turns. Start the bike and fully warm it up, go for a 10 minute ride. Set the idle knob to speed to 1,500~1,800 RPM as best you can (I know, without a tach this is tough, just set it to were it idles relatively smoothly). Once warmed, slow the idle speed (knob) to the lowest possible speed.
How competitive is the CRF150R vs. SX85? - ThumperTalk
Jul 3, 2017 · As with any class, the fastest rider will win on whatever they're riding. The 150 vs 85 is less of an advantage as 125 vs 250F. The 150 has the typical low to mid range advantage but the KTM will walk away on mid to top. I have to assume your child already knows how to keep a 2 stroke on the pipe therefore diminishing the 4 strokes advantage.
Electric start is possible on CRF150R & CRF150RB!
Nov 28, 2022 · Well, after a couple years of promoting and bugging them, they pulled it off! The pre-order is live for electric start on a CRF150R or CRF150RB!!! This bike is the greatest mid-sized bike (in my opinion) and this will totally change how smaller adult riders and kid riders can now use this bike for EVERYTHING!
crf 150 cylinder head work - CRF150R/RB - ThumperTalk
Sep 13, 2009 · Brad_Aus. Posted October 27, 2009. Heres my recent efforts in 150f porting. This is my first crf150 head, I also filled the floor.. Average port velocities are around the 380-390fps mark. Whereas they started in the 320 range. Im hoping this engine runs good, should have it running in a day or two.. 3 weeks later...
How to rebuild a "non-rebuildable" CRF150F rear shock.
Feb 12, 2011 · (8) time to put everything back together...Wadecamp said he added a O ring to his original seal (see first post for the link to his thread) but my seal was completely shot...Slide the old seal off (If your going to reuse the seal add silicone grease to the threads on the shock shaft so when you remove it you wont damage the seal) Honda does not list a seal replacement for …
My crf150rb woods bike build thread - CRF150R/RB - ThumperTalk
Dec 18, 2017 · The list of what I've done so far: 9 ounce fly wheel weight. RSW top clamp and 3" risers. Cut off the foot pegs and welded back on 1 1/2" lower and 5/8" back. Installing 18/21" wheels. I used a 1991 XR250 front wheel, same 15mm axle size. Lengthened the swingarm 3" by cutting the tubes off a donor and welding them on.
Crf150r vs crf150rb help - CRF150R/RB - ThumperTalk
Posted August 13, 2017. The wheels are larger on the RB, 19"/16" versus the 17"/14" for the smaller R. Not 100% familiar but it likely has a longer swingarm to fit the larger wheel. Everything else is mechanically the same, seat height will of course be a bit higher on the RB. At 5'5" ideally an RB would fit you better but it's still shorter ...