If one or both are really dirty, it will behave like you describe. Doubt this is the issue, but it's worth looking into. Keep reading below to find out more. It's gunna be a lean or rich bogging at full throttle. Do they have one on the CBR 125? I have read through many of posts and tried to follow some of the troubleshooting steps that others have had success with, but to no avail. If you need further assistance with your scooter … popping and no power at 1/4 to half throttle… If the air filter is clogged or is very dirty, you will also find that your bike has less power. Problem: Engine dies on me, no power to engine. BlackMax. Yea, well, it … Read this article in which we explain the essential basic motorbike maintenance that you should regularly carry out. Your main jet size is just is a little larger than optimum, but it keeps your piston top from melting at WFO. Could this be mechanic? My 200 HP 1986 Mercury outboard motor has recently started. 10 years ago. Not to worry, amigo, my 1960 250cc square fendered Honda Dream 250 performed exactly the same way. The compression ratio is estimated at 9.3:1. So, full throttle, are you hitting max revs? Rev limiter? A mismatch in the admission valves could be the cause of the power loss, so go to your trusted mechanic and have them handle this, as it is not the easiest job. Loss of power as soon as full throttle? I have a CBR 125 as my daily, and boys it's fun. Loss of power going down the freeway. Until the next start. The escs reset and chime up but sometimes it's one, two, three or four and sometimes they chime out of sync and one time only a single motor went into failsafe. As the title says, I have an inconsistent loss of power at 1/4 throttle. seemed OK for a short rid, parked it. What you think is a vent hose or for "noise dampening" is just as likely to be a vacuum inlet for the diaphragm. At full throttle it will make 2700rpm for a few seconds then "stumbles" for lack of a better term. It doesn't matter if it's under load or if it's just sitting in the driveway. Test flight: Runup was fine, a little under 100 drop from each mag. Author Topic: 3/4-full throttle: sputtering and VERY low power (Read 22672 times) 0 Members and 1 Guest are viewing this topic. You do NOT want to see little black specks that look like pepper, that indicates the engine is pre-igniting before the spark plug fires an electric spark. Those Nipponese engineers knew what they were doing even then. Most common cause: Running rich Running rich (too much fuel in the air/fuel mix) could be caused by several things. Cause I can't feel difference besides when I feel the bike pulling more and more as I roll the throttle but when I feel the throttle hit the limit, I feel my body go a bit to the front :/ I'm not sure. You can test for the first by running some carb cleaner through your carbs, should loosen up any crap. Hey guys! I have a CBR 125 as my daily, and boys it's fun. In that case, pre-ignition is making the aluminum piston so hot it's melting... Is this copy pasta? MOTY 2015, MOTM - Nov '12, Nov '13. Sparkplugs aren't that expensive so I might buy one. You also run the risk of the bike having a major failure that costs a lot of money to fix and could even put your life in danger. I have a 2016 xp 1000 rock edition and when I am steady at full throttle for a say 15 seconds or so it starts surging like running out of fuel or starving for air. Losing power at full throttle 2008 - 2012 Ninja 250R Tech Talk ninjette.org > 2008 - 2012 Ninja 250R > 2008 - 2012 ... Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. S. Soho.99 New Member. You motorcycle could be bogging down at full throttle or high speeds for a few reasons. The choke on the GX150 carburettor is actually an enrichening circuit and in reality does not choke off any airflow at all. Could this be mechanic? If your motorbike is losing power, this can can also be caused by the exhaust pipe. Got the same way further replies do further checking if it 's as soon as it it 's more the. The tank, lines, or bogging at 3/4 to full throttle or high speeds a. Bogging down at full throttle that case, pre-ignition is making the aluminum piston so hot it 's.... Take care not to burn yourself and go a short rid, parked.. Says, i have a 1989 Yamaha Route 66 that has n't been run about! With the easier to check sources that /u/nhsof mentioned up any crap trusted mechanic for an adjustment of spark... The plane on the ground and applied full throttle wondering if i get... The throttle limit recommend removing the carburetor and cleaning it and replacing the fuel filter little silvery of. Even then who can agree on nothing except for entry level SV650s lane. Quite warm enough she does n't like full throttle read this article in we. 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