Questions & Answers for: Yamaha YZ 125 reed valves

...valves rebuild it, compression should be 155-160 at least. backfires and hard starting is a common problem with compression as low as yours. check your reed cage assembly, if i back fires means the ...

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Question about 2003 YZ 125

1 Answer

yz125 wont run i noticed oil on top of the piston what would cause this and would reed valves cause it not to run thanks zac it seems like the oil seals on they way out i am not 100/% sure.

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...does not run properly. my 2005 blaster starts sometimes and when it does it runs for a few seconds then stalls out. any ideas? thnx chece the reed valves and jets make sure theres no **** in ya ...

...reed valve need to be replaced. I think your right, if the problem occured after installing the new pipe, you definetly nneed to re-jet the carb, try finding their site and they should have the info ...

...reed valves drained out old gas put in new gas now it won't start. It's a 2004 Yamaha Blaster hi mate on the carb there are 2 screw one for mixture and one for idle you need to unscrew the mixture ...

...reed valves cause the bike not too turn on if you mean not to start they could. a reed valve is simply a one way valve that captures the air fuel mixture in a two stroke motor forcing to go into the ...

Question about 2004 YZ 125

1 Answer

does yz80 have a ridvalve? reed valve, or reeds, yes.

Question about 2004 YZ 125

1 Answer

...reed valves engine will start but the bike will not stay running it would bogg out as if itt were getting to much fuel or not enough fuel Yes mate... It is hard to say without seeing the reed valve ...

Question about 2007 yZ 125

0 Answer

...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 ...

Question about 2004 YZ 125

1 Answer

When I start bike it rev flat out Checked carby & reed valves & they look ok Idle adjustment, throttle cable, vacuum leak, carburetor. THOROUGHLY CHECK them all

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