[Moto7man]

The wristpin bearing finally arrived, I used an 18mm BuxTool to install the circlips, it took about 30 seconds to install each circlip. I coated the wristpin and bearing in two stroke oil. I installed a new oem Suzuki base gasket. I lightly wiped the sealing surfaces with lacquer thinner to remove debris and oil. I installed 4 new oem case studs, unlike my CR250, the rounded portion of the studs face up not down and I torqued them to 9 foot pounds. Also, these four case studs are all different with different part numbers and are position specific and two of the studs have dowels.



The cylinder was ported at Pro Circuit and the they milled the head to run on pump gas.This is a Wossner forged piston and it has a marking pointing to the exhaust side. I set the ring end gap at .4mm.








I installed a new oem suzuki head gasket. The must be installed with the 'EX" mark facing up and pointed to the exhaust side of the cylinder. I torqued all the cylinder studs to 9 foot pounds.


Exhaust port.


I am waiting on a few more parts before I can do my leak down test but I decided to install the motor, It went in very easy, the big open frame gives you plenty of access.all new oem motor mount bolts.