Cam Kits

[chopper]

Tips and miscellaneous info to be used in addition to the factory
manual and aftermarket part instruction sheets


* Make sure you are using the proper cam plate for your engine. Late cam
plates have an extra oil feed that need to be blocked when using these
cam plates on early non balanced engines.

* It is strongly recommended to remove the oil pressure releif piston for
inspection. Make sure it moves free in its bore.

* If using a fueling oil pump, shim or stretch the oil pressure releif valve
spring as per fueling instructions.

* Check the assembly order of the oil pump. For the OEM pump it is wide
gerotor, plate, spring washer, plate and narrow gerotor. Some early pumps
have only one plate and it goes in between the wide gerotor and the
narrow one.

* Use EVO lifter block alignment pins to align oil pump as per factory manual.

* These pins cannot be used on the Feuling pumps. To align them install the
longer supplied oil pump bolts finger tight so as to hold the O-rings in place
and progressively tighten them in a crosswise pattern while turning the
engine over with the rear wheel and gearbox in 5th gear.

* Torque oil pump and cam plate to specs in the factory manual. Note that the
cam plate bolts can strip easy, in particular the ones that go thru the locating
dowels. yuo may want to use the lower limit of the torque spec.

* Do not mix up the 1/4"-20 x 1" cam plate bolts with the 1/4"-20 x 1 1/4"
cam cover bolts. Use of the incorrect lenght bolts on the cam plate can
cause oil pressure loss and lifter bore damage.

* If you intend to replace the inner cam bearings it is imperative you
use the special tools intended for the purpose. If you drop a needle in the
cases you will likely have to split them to retrieve the needle.

* If you do not intend to use a cam gear drive it is recommended the back
side of the cam chains be polished to a mirror finish with a cratex or similar
fine deburring wheel.

* Check alignment of the cam sprockets to within .005" and replace
sprockets and spacers as needed. On early engines you may find large
discrepancies that will require a cam sprocket spacer kit.

* If you do use a cam gear drive check clearances between the rear cam
gear and cam cover as per instructions.

* Check the fit of the pinion shaft cam gear on the shaft and check for
presence of a chamfer where the inner side of the gear mates with the
pinion shaft.

* Use new bolts provided with the cam gears or with the retention kit with red
Loctite and torque to spec. Make sure the threads in the pinion shaft and
rear cam are free of old Loctite and perfectly clean. Failure to follow these
steps can result in insufficient clamping force on the pinion shaft cam gear
and damage too the pinion shaft amd/or gear.

* Pushrod adjustment are covered in the big bore thread