One circlip is installed in the piston to act as a stop for the wrist pin
One circlip is installed in the piston to act as a stop for the wrist pin
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
The cylinder should be wiped down prior to reinstalling the piston. The instruction manual for the ATV or from the piston manufacture should tell you what oil to use. Eric prefers using 2 stroke oil as it burns away clean will provide the needed lubrication during assembly.
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
Carefully the new piston and rings are slid into the cylinder, taking care to make sure that each ring goes easily into the bore. Take your time here, no sense in rushing and not being careful.
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
A helper helps hold the cylinder and then the timing chain as its fed through the cylinder.
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
The piston is guided onto the rod and the wrist pin is installed. Ive seen this done both ways, with the piston installed then the cylinder installed. You have to go with what work for you especially if its an in frame project as room can be at a premium when you have the frame in your way.
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
Now the second circlip is installed to lock in the wrist pin
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
Making sure that everying is in place, a gentle tap around the cylinder with a rubber mallet will help seat it
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
The new piston is now installed and the top end is ready for the final stages of assembly
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
In every step of this process, parts should be cleaned and inspected for wear and damage.
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News
The timing chain guide is reinstalled by inserting it into the slots inside the machined recesses.
Staff Photographer ATVRiders.com
Senior Photographer ATVInsider
Staff Photographer GNCC Racing/ATV MX
Staff Photographer Vurboffroad
Staff Photographer Cycle News