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to remove the piston, you need to remove the carb and intake. You will then remove the 4 acorn nuts from the top of the cylinder head and the 2 bolts on the left side of the head. You can then remove the cylinder head and slide the cylinder up off of the 4 studs while insuring the piston is sliding out the bottom of the cylinder. Also take care in making sure the piston and connecting rod do drop against the studs as it exits the cylinder. To replace the piston, simply remove the cir-clip from either end of the recessed area in either side of the piston and you should be able to push the wrist pin from the connescting rod and piston. It is recommended that you replacee the cir-clip with a new one upon reassembly. And of course, you should reassemble with new head and cylinder-to-block gaskets.
What else can I help you with?
What is the top speed of a 1990 Yamaha moto-4?
about 60-80 km. or depends on what shape shes in.
How do you fix a piston in a kawaski kx 80?
You can buy the rebuild kit on ebay ...just remove the head and the piston will still be on rod..remove clip and rod pin...and piston and rings will be in your hands
What is the procedure for valve adjustment on a Yamaha moto 4 80cc and 350cc?
I have a 86 moto4 80 all aftermarket... On the road it gets up around 55-60
Yamaha raptor 80?
what year was the Yamaha raptor 80 introduced?
How do I remove a valve from a 80cc Yamaha raptor?
I have the same problem with mine. 2003 raptor 80 with 40hrs on it!!
What are the specs on a Yamaha big wheel 80?
what should the compression be on a yamaha big wheel 80
Is a Yamaha pw-80 the same as a jianshe 80?
no
What is the head torque for a Yamaha badger 80?
What do you torque head on Yamaha
Will Yamaha yz 85 parts fit a Yamaha yz 80?
so of them will
How fast is a Yamaha Blaster?
a Yamaha blaster can go around 75-80
How far can a Yamaha moto 4 350 go on one tank of gas?
The Yamaha Moto 4 350 typically has a fuel tank capacity of around 3.2 gallons. The distance it can travel on one tank of gas depends on factors like riding conditions and terrain, but generally, you can expect it to go approximately 80 to 100 miles under normal conditions. Fuel efficiency can vary, so it's always good to monitor your usage during rides.
What spark plug and gap for 1987 Yamaha moto-4 80?
NGK- C7HSA .030". The gap on most spark plugs run avout .030 to .032". I couldn't find any specific information on www.yamaha.com but they do have the parts break downs.
