Cr250 revving high. But it has like a sporadic idle.
Cr250 revving high Stock ignitions are designed to rev limit at around 9000 rpm with sharp timing advances. Sounds a little off. Seems to run normal in first through fourth gear. Try spraying a little starting fluid around the boot when it is idling. Then all of a sudden shot to the moon. We've adjusted the air/fuel mixture screw and the checked that the throttle cable May 20, 2025 · Revving under normal circumstances is a natural part of engine operation, and is to be expected. All Activity Home Forums Dirt Bikes Make / Model Specific Honda Motorcycles Honda 2 Stroke cr250 idle adjusting Facebook Twitter Youtube Instagram Pinterest Newsletter Aug 17, 2007 · by Ray » Fri Aug 17, 2007 3:14 pm Sounds like you're hitting the rev limiter. Jan 20, 2013 · After letting it idle for a few minutes to burn out all the old crap in the motor, I tried to rev it up & it is not peaking RPM's!!!!!!! It idles perfectly, but once you get on the gas, at about 1/2 throtle, it seems to bogg. And killswitch wouldn’t work and pulling spark plug boot didn’t kill it. What you think? Aug 20, 2015 · idles but will not rev just backfires pops brownedoff Posts: 44 Joined: Thu May 08, 2014 7:51 pm idles but will not rev just backfires pops by brownedoff » Thu Aug 20, 2015 10:59 am So I cleaned the carb out and its all good fresh petrol air filter good All valves good speck and timing good . Pipe design will limit rpm but not way down at 6000 and silencers won't effect rpm. The further a vehicle’s accelerator pedal is depressed, the more noticeable and prolonged revving will be. mynewcr250 Members 2. It has full power all the way up to about 1/2 throttle then it bogs down with a few sputters here and there until it almost dies 2002 Honda CR 250 R high idle Idles normally (warm) but will start to increase RPM. how far does it rev (rpm's) in each gear to get most power. New crank seals bearing etc. Oem. I have a 2002 honda cr250r. Ended up purposely throwing it on the ground as it would stop and I didn't want to blow up. Oct 11, 2004 · I was riding my CR250 on a long rode so I could see exactly how fast it is. I noticed that it wouldn't clear out and seemed to be running rich. I would ride it for a lil bit maybe a min or two and it will idle high again. We would like to show you a description here but the site won’t allow us. It was about time for a top end and since I hadn't done the whole motor in a while, I had my mechanic just do the whole motor, top and bottom end. 6k Location: Other Posted December 1, 2011 how do you make your honda cr250 have that popping sound when you rev it? like high pitch at 1:56 thanks May 26, 2016 · The first-person video shows a red Honda CR250 revving its engine as it zooms onto Hart High School about 11:40 a. It will idle a little high then fine. dirt bike handling 25. Jun 25, 2022 · Just picked up a 97 cr250 that just had a top end perfect compression was running perfect but know idle is way to high its idling at half revs it seems like tried the May 21, 2007 · Loss of compression and hard starting, yes. Jun 26, 2013 · 1999 Honda CR250 history of work done since bike was last running properly i had a circlip come lose and it destroyed my cylinder the crank was still good so i flushed the bottom end with two stroke gas several times and flipped the bike upside down to get out any debris from the scoring. On the other hand, if kill switch is not working, upshift to a taller gear and hold the brakes will safely stall it. motocross racing 24. Apr 4, 2024 · Still hard to start and high revs what could it be? It's one thing to check for air leaks with shots of brake kleen but, have you ever performed a proper crankcase pressure test? How-to link: https://www. Check that hot start system. Wednesday, passing security guards, a chain-link fence and crowds of students. When I went to inspect it, everything was pretty clean. It's fine now. It was a project bike, no kill switch, or brakes. Once you take off and ride with Aug 15, 2006 · Hi new to the forum. With the rc power value. First start idled fine. Bike revs high until the choke - Honda 2002 CR 250 R question Jun 14, 2014 · All Activity Home Forums Dirt Bikes Make / Model Specific Honda Motorcycles Honda 2 Stroke My 02 cr 250 is over revving Facebook Twitter Youtube Instagram Pinterest Newsletter Nov 14, 2016 · Once the nut is off, start the bike and rev it. com/forums/topic/432226-pressure-testing-a-2-stroke/#comments. Taking a plug reading indicated this also. Last time I had it out it ran perfect, this time I took it out and it starts right up with no problems. So i've got a 2002 Honda CR250 that I've owned since 2003. CR250 horsepower 26. I got my bike about a month ago and just got it started. Make sure your bike is warmed up before you make any changes. Apr 17, 2024 · So just did full motor rebuild. And it run pretty good, started second kick cold. BTW what mods have you done and what is your jetting? Joe so i got done rebuilding my CR250 in early April and took it riding not too long after it was completed. Try turniging your air screw about 1/8 to 1/4 turn in (clockwise) when its cold and 1/8 to 1/4 turn out when its hot out. Jul 26, 2018 · Sounds like fuel starvation. The stock cam stops producing power way before the rev limiter. It is a step for step analysis of my dirtbike revving very high at idle. Oct 4, 2010 · My father-in-laws little Yamaha (I KNOW HUH - HA!) 350 has been running fine and all of a sudden it starts revving high when you put in neutral. If you are still running the stock cam, there is no need to be revving the engine so high. All went well as far as the bottom end is concerned. If it speeds up you have an air leak. So I sh Mar 31, 2008 · my son had a fall today cause by a piece of rock in the waythe motor revving very high (cable get twisted by the fall) before he manage to kill with stop May 4, 2017 · So I recently did a topend to this cr250 (wiseco), and started it for the first time today. The bike when it starts it just stays at the Rev limiter with out throttle and it goes on for a while and it's scary. I clutched it and coasted as long as I could cause I was liek 2 miles from my place. Whole 9. my 04 250 was leaking fuel really bad out of the overflow tube after it had sit in storage for about two months i took apart the carb cleaned the floats and float valve put it back together the leak has stopped but now its revs really high when started. It sounds like the silencer is stopped up if you know what I mean, doesn't have the a bark that a strong running 250 normally has. Jan 10, 2006 · I just bought an 02' CR250. 10,000 or more for the R50, and less than 10,000 for the original Techniplate. How high does a CR250 rev???? Thanks:eek: I have tried 3 different Klotz oils with different results. Make sure the carb boots are tight. m. . LOUD May 18, 2025 · Is your car revving too high? Learn when to worry about high RPMs and how to address the issue to prevent engine damage and ensure a smooth ride. May 17, 2025 · Is your engine revving high? Learn common causes and quick fixes to get your engine running smoothly and prevent further damage. I removed and cleaned the powervalved, polished it along with both the intake and exhaust ports. and typical redline rpms, anyone know off hand? Sep 15, 2023 · Is your car over-revving? Find out the most common reasons why your car engine is over-revving and how to fix it. It has an FMF Jul 20, 2025 · Honda CR250R engine 19. dirt bike power 23. kx125 dust fest property QUIK RIP + CR250 HIGH REVVING ACTION Jesse Jarzabski 382 subscribers Subscribed A correctly sized main jet could mean the difference between being able to rev out high enough to not have to shift one more time at the end of the straight, or the power falling flat on top and requiring you to make that extra shift. Jun 24, 2019 · I just picked up a not so clean 02 CR250 I was wondering how I could get some more overrev out of it, it hits hard in the mid but it seems like it falls flat on its face when I try to rev it out. So the uncontrolled revving was the throttle cable sticking. A high hanging idle is almost always a lean condition. BUTTTT, I'm bogging again! So after some research i'm lead to believe it's either my ignition coil or bad float in carb (since I cleaned out the jets). Working on a 03 Honda CR250R. I'm having a problem when I cold start it sometimes and not all the time. Jan 12, 2021 · Your car might rev high when you start it due to factors like cold weather, issues with the idle air control valve, or problems in the throttle system. V force reeds. The bike does not have over 20 hours on it. The powervalve on those years CR250 was susceptible to sticking if you run oil that causes lots of carbon or don't clean the valve well when the top end is apart. Feb 28, 2013 · Well heres the things, I recently purchased an 01 CR 250 that needed the cases, purchased the cases and replaced them. aggressive dirt Nov 12, 2007 · I ride mostly trails, not really "HIGH" reving situations, where there is a difference in the two oils in the tech sheets about SCUFF resistance according to RPM'S. new throttle cable. motocross suspension 21. However, revving that occurs randomly, or seemingly without cause, is another thing entirely, and can be cause for concern. The issue I’m having is first is. thumpertalk. Dec 20, 2024 · Dirt bike won't idle without throttle after you got it started? Whether you have a 2 stroke or 4 stroke dirt bike that won't stay running, you're in the right place! In this article, I'll Jun 1, 2018 · Hello, I have a 2002 Honda Cr250r 2T. But it has like a sporadic idle. I was 14 it it seemed like the best idea at the time. i got a I've crashed a buddies old cr250 cause of this. You should be able to observe the powervalve rotate open and close through it's entire range of operation relative to the revs. When its cold out it will run leaner, when hot out it will run richer. I was in 5th gear not revving trealyl high or anything and the back tire just started sliding and the engine shut off. Feb 24, 2009 · I am trying to find the limits on a stock cr250 03-05 rpm limits. I tried to May 11, 2019 · Alright so I just brought my first 2 stroke (CR250 2001) just over a week ago. New carb. I hope you learn something from it and maybe solve your bike issues while looking at it. When throttle is in idle position, it tends to run away. Learn how to short shift to keep it in the power band, this will also help the life of your valve train. enduro bike 22. It ran fine for the first day we went riding but ever since then when you start it up it revs out of control. After a bit, it revved to the moon and I couldnt stop it with the kill switch, unplugging the spark plug, or turning off the gas!!! Does this mean its lean? I noticed it wasn't spewing Nov 15, 2009 · I have a 99 cr250 (W/07 conversion kit) with a very strange bog. high-revving two-stroke 20. 67opfgmpzd57r4ukol4twaf2rfo6v0hpfbjnv3hnefk