Single Detail Page Misc: Vforce Reed Valve and Keepitroostin Sticker Fits Yamaha Yz125 1995-2004 - V-Force

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Single Detail Page Misc: Vforce Reed Valve and Keepitroostin Sticker Fits Yamaha Yz125 2005-2013 - V-Force

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Yz 125 Valve Power Popular Q&A

Q: What year models did yamaha make the yz125 with the power valve h...
A: Mike, if you ask for a piston to suit a yz125 with a power valve you will get the right piston, the year it was made is not important. You might also find the p... Read More »

Q: How to modify 1986 YZ 125 Power valve?
A: The power valve is the little metal flap that cover up part of the exhaust port while the engine is operating at low and mid RPM ranges. If you have bored the c... Read More »

Q: How to assemble power valves on yamaha yz 125 2000year
A: Http://www.bikebandit.com/houseofmotorcycles/2000-yamaha-motorcycle-yz125m/o/m8835#sch111222 Please see this schematic. Read More »

Q: Can the power valve on a yz 125 stop the bike from starting?
A: Yes it can if you rotated the drum so that the exhaust port is completely blocked. Running without it will make the bike exceptionally vicious with power coming... Read More »

Q: Leaking oil from power valve on 2000 yz 125?
A: It is normal for the powervalves to leak, but it does depend on where it is leaking from. The hose on the left side is the power valve chamber vent - it is norm... Read More »