Specifications

42
3. Hold the throttle wide open, and kick repeatedly (approximately 20 times)
or until the gauge reading does not increase in value with each kick.
Base Gasket Selection
Tools required
17mm wrench
1mm flexible solder material
measurement calipers
When rebuilding the ‘top end’ of your Cobra motorcycle, care must be taken to
ensure the proper squish clearance. Squish clearance is defined as the minimum
distance between cylinder head and piston at TDC. There are negative effects of
either having too much or too little clearance. Since parts like the crank,
connecting rod, cylinder head, piston, and crankcases all have varying
tolerances, Cobra offers several different base gasket thickness’ to ensure that
you can always set the squish clearance of your engine to factory specifications.
For base gasket replacement use the code (see figure 31 for location) along with
the table below to reorder the correct thickness gasket.
Figure 31
Code
Supplied Base
Gasket Thickness
Cobra #
#
mm
inch
Part #
3
0.3
0.012
ZCMU0703
4
0.4
0.015
ZCKG0501
5
0.5
0.020
ZCMU0705
6
0.6
0.024
ZCMU0706
7
0.7
0.028
ZCMU0707
8
0.8
0.031
ZCMU0708
NOTE: Tolerances will affect the actual gasket thicknesses.