Question about 2005 Honda CRF 250 R

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250cc buggy stalls

I recentlt bought a bms 250 buggy. It has a cn 250cc engine, starts good, but cuts out some when running higher rpms. My main problem is that when I am taking off on an incline, even a slight one it stalls and dies. Any suggestions???

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Sounds like the carb float tang is not set properly causing insufficient fuel to be in the bowl. i'd have a look at it and adjust as necessary.

Posted on Mar 10, 2009

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I have a hawk 250cc Chinese dirt bike with 80mph on the speedometer but I only can get it to 50mph what could I do to get it to 80mph


Speedometers always go a lot higher than the maximum speed of the bike. In the case of your Hawk 250 the quoted top speed is 74.5 mph. In my experience of riding trail bikes and competitive enduro, you will only reach it under ideal conditions. That is usually a following wind, downhill, with a light rider, riding one handed with your head on the tank. NOTE - This isn't a very safe way to ride! The main problem with dirt bikes is the riding position which is sitting high up like a flag in the wind which causes extreme wind resistance which will easily know 20 mph off your top speed.

your bike also needs to be correctly set up, and I doubt that Chinese engineering workmanship is that good. at 80 mph things can go bad very quickly.

RPS 250cc Hawk Dirt Bike

Mar 09, 2016 | Motorcycles

1 Answer

90 HP 4 stroke runs smoth as silk at 1800 move higher and it stalls have replaced several parts rebuilt carbs no help


when an engine stalls or looses power at high rpms , it is because there is a higher need for fuel to supply that requirement
fuel shortage can be from
blocked filters
low float levels in the carby/s
vent problem in the fuel tank/s
perished hoses letting in small quantities of air
the hoses failing intrenally and blocking off the fuel flow
pump problems from bad diaphragm or the rubber in the hose again blocking the main jets in the carby/s
another area to be checked is the ignition system being able to provide the spark at a higher rpms
this problem can be from failing condenser, ignition module or coil/s

Jun 27, 2015 | Seloc Mercury Outboard Engine Repair...

1 Answer

1997 Honda CRV, over 219,000 miles. Stalls out periodically even though it starts OK. Can be pulling out, running engine at low rpms and it stalls. May be related to electrical as it is more likely to...


Considering that it occurs more often with the a/c on, it is most likely a problem with either your battery, where it is too weak to sustain the engine output, or with your alternator. I advise checking your battery, and if that isn't the problem, checking your alternator. If neither of those seem to be the problem, its also possible that it is your torque converter, or a skewed setting in your ecu, both of which would most likely need to be checked by a professional.

May 04, 2011 | 1997 Honda CR-V

1 Answer

I got a 1990 ford ranger 2.9 v6 its running very crappy


Fluctuating an high RPMs sounds like a leaking or missing vaccume hose to me, I had simmilar problem found open hole with hose off, replaced it now the RPMs are under 1000 again.
As for the stalling I also am having a simmilar problem, and am finding air in the fuel rail, I suspect the fuel pump is going.
I cant go more than a mile without problems.

Dec 03, 2009 | 1990 Ford Ranger SuperCab

1 Answer

Bike cuts out at higher RPMs


It sounds like you did a good job - but, did you adjust the float? You will use more gas now and at high RPM you may be running ouy of gas - Check floats specs and adjust

Oct 14, 2009 | 2006 Yamaha V Star Classic

1 Answer

Hello, I have a 1990 route 66 250cc


You can get to 55 with and old Honda 90cc. Your 250cc should do 80 with no problem. Your gearing is backwards. The larger the rear sprocket, the slower you go. You have tried to compensate a loss of engine power with a gear reduction demanding more from the what little power the engine is putting out. Put the 45T sprocket back on and do some work on the cylinder head. Ethanol is famous for corrosion and your valves are proof of it. All your power and gas mileage are going out the exhaust pipe. Pull the cylinder head and re-seat the valves. This should get back the power that is missing. You didn't mention any smoking so the piston rings must still be good. The stock main jet is #110. The higher the number , the richer the mix. Go to a #112 or #115 if you need to but only after the valve job. Right now the main jet is not the problem and changing it will only mean even worse mpg.

I answered this question once but the answer has disappeared into cyberspace. FixYa has a problem with that occasionally. A “very helpful” rating for this answer? Thanks!

Jun 24, 2009 | 2000 Yamaha Xv 250 Virago S

1 Answer

Mitsu Montero Sport '02 engine stalls but not when air cond is on.


hi there. the reason that the engine idles good when the air-con is engaged is that ussually all vehicles nowadays have a vacumm advance mechanism. this is triggered mainly by a electric solenoid valve which is also attached parallel to the source supplying power to compressor. a small vacumm hose with a diameter like a common pencil or ballpen case. its made of rubber and it runs from the alternator vacumm pump then to the solenoid valve and to the vacumm advancer unit attached to the injection pump throttle. this system raises the idle a tad higher.

if your montero runs completely normal and you experience no other problems with your engine except for your present problem, then the solution is just raising the idle a little higher. if your montero is equiped with a RPM guage on the dash, try adjusting the idle to around 800 rpms. it would be healthier for your car if the idle raises a bit when you engage the air-con because this would compensate for the added load on your engine.

hope this helps.

May 31, 2009 | 2002 Mitsubishi Montero Sport

1 Answer

Stalling at low rpms and taking off.


check the idle adjusment i had this isssue on my bike where i accidntly lowered the idle didnt know it, but when i started up after bring the choke down the idle needle would bounce and sound like it was about to cut off, i just adjusted the idle i little higher and i was all good after that. I had a 2006 ZZR 600

Apr 18, 2009 | 2003 kawasaki ZX-12R

1 Answer

Cuts out sometimes at low rpms 2000 yamaha r1


Hvae you put on an aftermarket pipe? If so I owuld recomend rejetting the carbs. It probaly happens alot when the temp changes outside.

Mar 11, 2009 | 2000 Yamaha YZF-R1

1 Answer

Bogging and stalling at high RPM's


The main jet need cleaning.(you should clean them all though)

Main Jet: Main jet comes into play at three-quarters open to full throttle conditions. CRITICAL to high-speed engine operation. Not only does it meter the gas into the engine, it can aid in cooling the engine as well.

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Jan 29, 2009 | 2002 Honda XR 250 R

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