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Qr50 won't fully rev - CB 750 Honda Motorcycles

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2011 Laro that is lucky to do 60-65 km. I've had the carby fully serviced, new plugs, new ODI switch, coils and it still doesn't go any faster than 60 km flat out revs at 3000 rpm and that's it.


Hi, Bungi if it's not electrical, ignition or cam timing, or a compression issue then all that's left is fuel and the usual suspects are:
1. Idle speed improperly adjusted.
2. Inlet system air leak.
3. Damaged or restricted fuel tank venting system.
4. Dirty or damaged air cleaner element.
5. The accelerator pump is inoperative.
6. Vacuum piston assembly malfunction.
7. Enrichener valve is not seated or leaking.
8. Restricted fuel supply tract.
9. Plugged bowl vent.
10. Loose or plugged fuel and air jets or passages.
11. Improper float level.
12. Worn or damaged needle or needle jet.
13. Loose or plugged main jets or passages.
For more information about your issue please click on the blue links below. Good luck and have a wonderful day.
Help diagnose my bike Won rev past 3000rpm motorcycles
Wouldn rev above 3k rpm now won start
Bike doesnt rev past 4 5k rpm
Life On 2 Wheels
http://www.cycletorque.com.au/laro-cruiser

Mar 15, 2017 | Motorcycles

1 Answer

How do we fix a stuck choke on a kids qr50 Honda?


check that the outside cable is not kinked and jamming the choke cable on

Jul 31, 2016 | Motorcycles

1 Answer

I have a 1983 honda qr50,but it runs in reverse. how do i fix this?


Hi, Anonymous you need to retard the timing 2-3 degrees, for more information about your question and valuable "FREE" downloads that you will need please click on the websites below. Good luck and have a nice day.
Two stroke run backwards
Runs Backwards Yamaha 2 Stroke
Will two stroke engine run backwards
HONDA QR50 Owner Manual

Apr 07, 2016 | Honda Motorcycles

1 Answer

My yam ybr 125 will not rev out fully. in top gear at 50 mph 7000 revs that's it . the spark plug looks lean more white ish .but all setting are to the manual .thanks


Hi, Anonymous and the usual suspects are:
1. Severely drained or faulty battery.
2. Faulty regulator/rectifier or high output coil.
3. Faulty power valve, solenoid or installation.
4. Clogged air filter or exhaust.
5. Cracked or incorrect float level.
6. Float needle is not seating.
7. Faulty reed valve.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
03 TTR 125 won rev but idles fine TTR
bike will not rev past 8k like hitting the rev limiter
YAMAHA YBR125 Owner Manual
OEM parts for Yamaha
http://www.svracingparts.com/wp-content/uploads/2014/05/mr125_service_manual_eng.pdf

Aug 29, 2013 | 2006 Yamaha Ybr 125

2 Answers

I have a Bolens BL110 Trimmer - it starts just fine, but won't rev up completely. Suggesstions?


Could be blocked spark arrestor or carboned up in the exhaust port.

May 06, 2012 | Garden

1 Answer

2004 toyota corolla charging light on in the dash won't go out battery and alternator are fine what is the problem


How old is the belt that turns the alternator? Any whining sounds as motor revs up and down? If your belt is old and frayed, it might not be fully turning the alternator pulley...Hope this helps.

Mar 16, 2012 | 1993 Toyota Corolla

1 Answer

I have a honda qr50 and i need some dirrections on


The bolt at the top only holds it into the top triple clamp, You need to unscrew the crome nut on the top of the lower legs, with large multi grips to separate the upper and lower forks. but I think you will only find a spring and some grease and a nylon bush

May 25, 2010 | 2003 Honda Honda Fusion

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