Question about 2001 Honda XR 650 R

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Bike runs good but when I give it full throttle, especially in 2nd gear, it cuts out and almost stalls. Do you have any suggestions?

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Could be starving for fuel or could be the coil. Is it fuel injected or carburetor ? Now when it cuts out this is the important part. When it cuts out is it a jerky quick cut out or a much smoother and longer cut out. The quicker one represents the coil and the longer one would be fuel. If it has a carburetor then check the fuel line. Is it old and stiff or shows crack lines? Check the fuel filter. if it is fuel injected then the fuel pump could be at fault. You know there are also other things to check. The spark plugs can cause it to cut out under a load. The spark plugs should be the proper ones for this bike. Each plug has a rating and you have heard of being a hotter plug? This just means more or less spark power at the gap. Too much is not as good as too little. But it should be enough to ignite the gas. You can remove the plug and inspect for cleanliness and color. a brownish color is best. White is not good and means it is too lean. Black and it means it is not burning correctly and oily. When you have the plug out ground the threads to the engine and turn your bike over. What does the spark look like? Dark blue is good. Red is ok, light red with a yellowish tint is getting weak and will not be enough to fire the gas at a higher speed. what happens is the faster the speed of the bike the quicker the spark has to develop. If it is a lighter color and it has to fire quickly, the spark would have almost diminished to nothing, but on the other hand if it is dark blue if it has to fire quickly there is still enough uumph to do the job. You see the amount of spark is also determined by the frequency the coil on and off. Well hope this helps you to determine if it is gas or spark problem. If spark its the spark plug,coil or spark plug cable. I have seen the cable where it contacts the spark plug be a problem.
If it is fuel , fuel filter, fuel line,fuel pump, injectors and possibly which I have overlooked, could be other electrical items such as throttle sensor, cam sensor. Not sure what bike you have but this should cover most all of it.

Posted on Dec 25, 2013

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  • 32 Answers

Try to remove the air filter, if it does still stall try to adjust the air-fuel screw on your carb.

Posted on Dec 25, 2013

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Posted on Jan 02, 2017

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SOURCE: left cylinder won't fire...bike stalls in 3rd gear...

Check for spark on both cylinders. Chances are it has been years since anyone paid attention to the ignition points. Download a free PDF service manual at the site below. Get the 15th manual from the bottom of the Honda list. Yes, it is a 250cc manual but the points and timing are the same as the 200cc. It is the nearest free manual I could find. Google " service manuals honda " or try your local library. Often guys will donate manuals to the library.
or go to www.repairmanuals.com

FREE > http://www.carlsalter.com/motorcycle-manuals.asp

Also Google " vintage honda parts "

If the gas tank is rusted inside then line it with a liquid liner. Google kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html

Drain the carburetors. There may be a screw on the lower side of each carb float bowl. Remove the screw then replace it after the fuel drains. Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, (not all bikes have a water trap bowl). Install an in-line fuel filter. Turn the gas back on and wait a minute for the carbs to fill with gas. Install new stock NGK spark plugs and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetors from the engine.

FOR EACH CARB > Remove the float bowl and clean the entire
carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine.

Please rate this solution. Thanks earthworm03!

Posted on Apr 19, 2009

  • 3567 Answers

SOURCE: Honda V1100 Jumps out of gear on full throttle acceleration

More likely it is a slightly bent shift fork not fully engaging into second. The clutch and bearings are not suspect. Remove your foot from the shift lever then go full throttle in 2nd. Those new riding boots may be doing the magic unconsciously. Adjust the shift lever height if that is the problem.

Posted on Apr 30, 2009

  • 224 Answers

SOURCE: My Honda innova 2006 model has a clicking noise

sounds like valve train problems

Posted on Aug 05, 2009

  • 1 Answer

SOURCE: in 4th and 5th gear at full rev seems like

the gears on my crf450 are stiff and sometimes get stcuk wat could this be ?

Posted on Nov 13, 2009

  • 38 Answers

SOURCE: I just bought a 2004

Sounds like you have a float sticking in your carburetor, is this a single carb or a duel carb? , also gas can go stale and your bike will run like **** if it also has been subjected to tank condensation and water in your gas, that also maybe your problem, I would drain the tank and drain the carb or carbs, and start off with fresh gas and would use 89 octane or better, also pickup some StarTron Enzyme gas treatment, it will stabilize your gas for up to 2 years, and remove the ethanol from your gas, that is a bad for your motor, try it you will never go without it. Good luck, Rick.

Posted on Aug 06, 2011

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I had a CBR 954, and noticed that the spark plugs fouled out pretty easily because it runs so rich at startup (and I would shut it down during the 'warm up' phase).
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From http://answers.yahoo.com/question/index?qid=20080806081249AALKibM
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- After running the bike for a little bit, take out one of the plugs. If the end of the plug is wet, its not firing, and it could be oil fouling the plug
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