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 ...
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 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.
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.
Crf 150f 2004 top end rebuild - ThumperTalk
Posted August 13. My Ride. 5 hours ago, adnohguy said: A CRF 230f engine bolts right in and fits perfectly, all you need is 230 f upper motor mount plates (2) E Bay usually has used engines at all times. What year crf230f top end are you talking about or are you talking about the whole 230f motor if so also what year.
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.
2007 CRF 150 R No spark won't start - CRF150R/RB - ThumperTalk
Aug 14, 2008 · mcguyver. If the plug is good the MOST probable cause of no spark is a bad ground at the coil. Remove the tank, look for a short wire from the coil to a round brass connector attached to one of the coil mounting bolts. Remove the bolt, clean the connector and reassemble. If that dosn't work look for moisture in the flywheel conver area.
CRF150 Valve clearance!!!!!! - CRF150F/L, CRF230F/L & CRF250F
Posted February 16, 2006. uno4cinco, The process is exacty the same as for your other CRF only much easier! The difference is that it is adjustable by set screw and lock nut. No shims to remove and change. Just loosen or tighten the adjustment screw to the proper clearance and re tighten the locknut. Done.
CRF150R enduro conversion - CRF150R/RB - ThumperTalk
Sep 15, 2008 · But it is worth it to me, so no nasty comments please. Here is a list of the parts I have on the bike, but I might forget some: - BBR Aluminum Perimeter Frame. - Marzocchi 45mm Works Shiver forks. - Fox Podium X DSC Shock. - CRF450R front twin piston brake caliper. - Lightspeed skid plate and motor guards.
Crf 150r Maintenance - CRF150R/RB - ThumperTalk
Nov 12, 2020 · If over 5'2", you are already too tall for a 150R, if over 5'5", again too tall for an 150R/B Expert (big wheel) version. if already 5'6" and still growing, look for a 125 2-stroke instead. Longevity / frequency of rebuilds depends on a few things but it comes down to how you ride it and, how you maintain it.