When to stop riding a Yamaha YZ 125?
Fork fluid is extremely slick and may interfere with the front brake or tire’s ability to grip properly. Replace the fork seal immediately or consult a qualified Yamaha technician. If your YZ125 consistently fouls spark plugs, you may have damage within the motor. Stop riding your YZ125 immediately and consult a qualified Yamaha technician.
What’s the big bore on a Yamaha YZ125?
The 1999 – 2018 Yamaha YZ125 134cc / 144cc kits are our most popular M-Spec Big Bore Kits! We strip your stock cylinder, weld the ports for perfect port timing, then bore the cylinder from 57.5mm to 56mm (134cc) or 58mm (144cc).
What to do if your Yamaha YZ125 is fouling spark plugs?
Fork fluid is extremely slick and may interfere with the front brake or tire’s ability to grip properly. Replace the fork seal immediately or consult a qualified Yamaha technician. If your YZ125 consistently fouls spark plugs, you may have damage within the motor.
When to take a Yamaha YZ125 to a technician?
If you experience a problem that is beyond your technical skills, take your YZ125 to a qualified Yamaha technician. Do not ride your YZ125 if you suspect that the front fork seals are leaking. Fork fluid is extremely slick and may interfere with the front brake or tire’s ability to grip properly.
What can you do with a Yamaha YZ125?
If you do nothing else but a pipe/silencer and a V-Force you will be almost on a level playing field with the KTM 125SX. The V-Force3 system gives the Yamaha increased power, throttle response and also allows the Yamaha to rev farther than that of the stock reed cage system.
Why does my Yamaha YZ125 have too little clearance?
A stock YZ125 has a loose squish tolerance, which is simply due to Yamaha manufacturing it on the “safe” side. Too little clearance will require race gas or engine failure.
How old is Aden on a Yamaha YZ125?
My 14 year old son Aden has been going back and forth between two different colored 125’s, but has seemed to take a liking to the YZ125 the most lately. I decided see which simple mods could help this Yamaha YZ125 two stroke the most in order to get him some extra ponies.
Why do I need aftermarket cylinder head for YZ125?
An aftermarket cylinder head will give you more torque and better throttle response, as well as make jetting easier. This is done with correcting the squish clearance between the top of the piston and the head. A stock YZ125 has a loose squish tolerance, which is simply due to Yamaha manufacturing it on the “safe” side.