Cr125 bogs at full throttle. I have a 03 Cr125r with a recent complete rebuild and im stumped at this point. When giving it full throttle it kind of bogs towards the high RPMs and almost kind of clears itself out after a second or two if that makes any sense. To do this unscrew the top of the carb where the throttle cable goes. Be careful cause there is a spring there. Then take the throttle assembly out. In mid range it runs great. Does this sound like I need a carb cleaning , carb tune , or what idk let me k My bike bogs off of idle but once im past 1/4 throttle it rides perfectly. Cr125 Bogs Out Of The Corner Harvey Crump and 18 others 󰍸 19 󰤦 2 Last viewed on: Jul 13, 2025 󱣝 Let me know what you guys think I’m having a acceleration problem it feels like all the power there , runs perfectly fine 1-3 gear but when I punch it an give her the beans she bogs out big time as if I ran out of gas. This is when the dreaded "bog" happens. After a few years of sitting and even getting the motor taken apart it’s back together, with a new stator and carb to boot. Vapor-locked gas tank 2. it rolls on power okay if i roll onto the throttle slowly. Jun 15, 2022 · Let me know what you guys think I’m having a acceleration problem it feels like all the power there , runs perfectly fine 1-3 gear but when I punch it an give her the beans she bogs out big time as if I ran out of gas. This bike is sometimes hard to start and bogs at low end and high end. . Ive had this problem before and i replaced the top end and its doing it again, ive been told that it might be the reeds or the reed cage but at this point i really have no idea any suggestions would be appreciated. When not on the throttle and when its at low rpm, if i go on the throttle with no clutch, it bogs and sputters until it reaches the point where it hits power band and then hits and rides fine. Lean fuel mixture May 7, 2024 · Discover why your motorcycle bogs down at full throttle and learn practical methods to fix engine bogging and poor acceleration. Then just spray carb cleaner down the main jet and the pilot jet. Loading I have a 1998 cr125 with a newer top end, full fmf exhaust, Vforce reeds, new air filter. Ive read a lot of TT threads about this same problem and everyone says its the airscrew so if thats correct how can I fix it? I have a 2001 cr125 it will ride good on quarter throttle but as soon as I start getting up into the rpms it cuts out And bogs down, but when I let off the throttle and bring it back down to quarter throttle It will continue riding (carb is clean , fuel is good has new top end and honed cylinder) All Activity Home Forums Dirt Bikes Make / Model Specific Honda Motorcycles Honda 2 Stroke Cr125 bogs at full throttle Plug the openings with paper towels. Apr 14, 2008 · Hey guys, '03 CR125 stock except pipe, silencer and Boyesen reeds. Ok so I have a 1996 cr125r that I just rebuilt only a hour on the motor I replaced a lot of things like ignition coil and everything and put a brand new pwk airstriker carb on it and adjusted the air flow screw 1 and half turns out like the Honda Manuel says and it idles amazing and everything an Also, outside of first gear you will never be able to whack the throttle wide open from idling and expect it not to bog, nature of the bike (and most 125s). In top end when I get to high rpms, it bogs ou So my CR125 previously idled alright but would bog when given any throttle and die out. These are the top reasons why your dirt bike might not be getting enough fuel: 1. In low end I need to be on it to have power (normal for 125). I either turn the airscrew in (clockwise) or use the next size larger pilot jet. Carb float height is set too low 4. The throttle assembly should be put in a baggy sobit doesn't get dirty out of the carb. What year CR125? Is it the mechanical or electric powervalve? If its the mechanical power valve, the bike ran strong before, its jetted correctly, and is just now exhibiting the low power and bog, I wouldnt be focused on the powervalve caked with spooge. Does this sound like I need a carb cleaning , carb tune , or what idk let me k Jul 12, 2025 · Cr125 Bogs Out Of The Corner. However your bog sounds like a jetting issue, my bike likes to be richer for better off-idle throttle response. Right after I replaced the reeds I started noticing a low RPM bog when rolling the throttle on. thanks and ride on If the engine is starving for fuel, it doesn't have anything to ignite and produce power. Im at a loss. I've seen many completely caked that still function. feels like its misfiring. For example if i go into This video will explain the carburetor jet circuit that is most likely causing the problem and the next step you should take to fix the bog and get your 2 stroke running crisp with smooth throttle Now: new oem cylinder and head, fresh wiseco piston, carb rebuild, air filter, fresh silencer packing, and now the bike starts and runs well but bogs soooo badly off idle and when i crack it WOT. As far as the idle its never really steady and fluctuates. Fuel line pinched/kinked 3. I know reeds make it run rich so I leaned the air screw out 1/2 turn and replaced the plug with a fresh BR9EG. i44w3, 4yeqzb, lcgnv, 21ou5, cjnr, ziwlh, mg7t, qdnjsy, v9xl, bncx,