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Qr50 won't fully rev - Honda Motorcycles

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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 for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
1981 z50r won rev
PW50 won rev lots of things tried
http://www.monkeybikeoz.com.au/gallery/Manuals/Honda%20QR50%20Shop%20Manual%201983.pdf
http://www.partsfish.com/page/oem-parts-for-honda
HONDA QR50 Owner Manual

Posted on Sep 07, 2017

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Posted on Jan 02, 2017

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1 Answer

1983 Honda QR50 head bolt torque spec @


Hi, Jason, these are metric torque specifications in the most common sizes and are measured in foot-pounds.
Bolt size___Grade 4.8__Grade 8.8__Grade 10.9__Grade 12.9
6mm__________5__________8_________12_________15
8mm__________11_________20________30_________35
10mm_________21_________40________60_________70
12mm_________37_________70________105________120
14mm_________60_________110_______165________190
For more information about your question and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
1983 Honda QR50 head bolt torque spec Google Search
http://outdoorpowerinfo.com/engine_specs/honda_head_torque.asp
http://www.monkeybikeoz.com.au/gallery/Manuals/Honda%20QR50%20Shop%20Manual%201983.pdf
https://www.partsfish.com/page/oem-parts-for-honda
HONDA QR50 Owner Manual

Dec 27, 2017 | Honda Motorcycles

1 Answer

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

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

Honda QR50 not getting fuel


Hi, Anonymous always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
HONDA QR50
http://forum.thinkbike.co.za/archive/index.php/t-36958.html
honda QR50 SHOP MANUAL CD OR DOWNLOAD $5
http://www.partsfish.com/page/oem-parts-for-honda
HONDA QR50 Owner Manual

Nov 19, 2013 | 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

1 Answer

Honda QR50 head bolt torque specs


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.monkeybikeoz.com.au/gallery/Manuals/Honda%20QR50%20Shop%20Manual%201983.pdf
https://www.partsfish.com/page/oem-parts-for-honda
HONDA QR50 Owner Manual
Honda QR 50 82 87
Honda QR50 CycleChaos

Jun 28, 2012 | Honda Motorcycles

1 Answer

Honda QR50 oil change


Hi, Corsa2006 for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Honda QR50
what oil for the honda qr 50
Honda QR50 service manual
https://www.partsfish.com/page/oem-parts-for-honda
HONDA QR50 Owner Manual

Sep 29, 2010 | Honda Motorcycles

1 Answer

Honda QR50 service manual


Hi, Peterprice1 the vast majority of service, parts fiche, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee of $15 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available and some were never printed in English. The Indian and Philippine markets are usually in E-book format only, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. If there is no $ sign after the manual link it is free to download.
To download your manual for viewing or printing please click on the blue links below. Good luck and have a wonderful day
Honda QR50 genuine workshop manual eBay $10
https://www.partsfish.com/page/oem-parts-for-honda
HONDA QR50 Owner Manual
Honda QR 50 82 87
Honda QR50 CycleChaos

May 30, 2010 | Honda Motorcycles

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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