Question about 2005 Yamaha PW 80

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I have a pw 80 that runs perfect in neutral when you put it in gear it runs fine until you try to go then it bogs out. I put a new cylinder, head,piston and ring as well a new carb. It still does the

Posted by Anonymous on

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  • Yamaha Master
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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 please click on the links below. Good luck and have a nice day.
Pw 80 runs awful
PW 80 problems with it bogging out
YAMAHA PW80 Owner Service Manual
OEM parts for Yamaha
YAMAHA PW80 Owner Manual

Posted on Feb 04, 2017

5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: bogging issues and clutch adjustment on 1980 RM 125

As far as your clutch adjustment ,I can't help you but the fact that the bike is older you might want to try removing the exhaust pipe at the baffel end and see if there is a difference in power ,if there is clean out your baffel and your good to go. hope this helps
jerry

Posted on Apr 13, 2009

  • 1244 Answers

SOURCE: My yamaha fzr 250 won't start

back the valve adjustment off!! there set too tight

Posted on Jan 16, 2010

Testimonial: "Shims were out of spec from previous owner thanks mate i never would of checked them if you didnt mention the valve clearance"

  • 19 Answers

SOURCE: my tzr125 2rk 1991 the bike splutters in every gear

gett a high preformance spark plug as i had the same problem with my bike

Posted on Apr 13, 2010

sisadsl
  • 1508 Answers

SOURCE: pw 50,

cover up the drilled holes this can cause problems, why was a new carb fitted? did the shop have it running?
not likely rings .
check carb for flooding and correct jet sizes.
check safety kill\start\run switch for shorts.

Posted on Feb 25, 2011

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1 Answer

I have a pw 80 it runs perfect when its in neutral, whe you put i in gear it runs fine until you give it gas then it bogs out.I have put a new cylinder a piston ring and carb. Still does the same thing


Hi, Adam and the usual suspects are:
1. Throttle cables misaligned or misrouted.
2. Damaged or restricted fuel tank venting system.
3. Intake system air leak.
4. Vacuum piston malfunction.
5. Pinholes or torn diaphragm.
6. Accelerator pump leaking or no output.
7. Plugged bowl vent or overflow.
8. Fuel level in bowl too low.
9. Restricted fuel supply passages.
10. Plugged jets or passages.
11. Worn or damaged needle or needle jet.
12. The enrichner valve not seated or leaking.
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.
Pw 80 runs awful
Pw80 over oiled rich no power exhaust carb fuel probl
YAMAHA PW80 Owner Service Manual
OEM parts for Yamaha
YAMAHA PW80 Owner Manual

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Pw 50, cleaned air filter,put new plug in,bike starts fine,then feels like choke is on and bogs down,plug is wet ,smells of petrol,,,,no power , tried running to clear through ,sputters then sounds...


cover up the drilled holes this can cause problems, why was a new carb fitted? did the shop have it running?
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Feb 25, 2011 | Yamaha DT 125 X Motorcycles

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I have a 1997 Town Car and it runs perfectly fine until i park it, then try to start it and put it in gear, it will start up just fine with no noises, and the battery, lights, and everything else is fine,...


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