Specifications
42
Rear suspension troubleshooting. Damping
Always start with standard settings and make damping changes in no more than two
click increments and only make one change at a time.
Symptom
Action
Rear end feels stiff on small bumps Softer compression damping
Rear end ‘sways’ on straights Harder compression damping
Bike tends to jump ‘rear end high’ Harder rebound damping
Bike tends to jump ‘rear end low’ Softer rebound damping
Frequent rear end bottoming Harder compression damping
Bottoms after end of continuous bumps Softer rebound damping
Rear end ‘kicks’ over square edge bumps 1) Harder rebound, 2) Softer
Compression
Proactive Suspension Adjustments
Once you have the suspension adjusted for decent overall feel, you can make
proactive adjustments when faced with different racing conditions.
Situation
Actions
Sand track Lower the rear end (increase race sag).
Sand track Stiffer compression and rebound damping.
Long fast track Lower the forks in the clamps by 3 mm.
Tight slow track Raise the forks in the clamps by 3 mm.
Mud track Lower the bike if the rider has difficulties
touching the ground.
Carburetion
Although your Cobra is sent from the factory with the carburetor jetted for optimal
performance, you may find it necessary to adjustment your particular jetting due to
current weather conditions, altitude, fuel variations, and/or engine modifications.
CAUTION:
Proper jetting is very important for engine performance and engine life. Symptoms
of improper jetting are listed below.
• Symptoms of incorrect oil or oil / fuel ratio
o Poor acceleration
o Misfire at low engine speeds
o Excessive smoke
o Spark plug fouling
o Excessive black oil dripping from exhaust system
• Symptoms of too rich a fuel mixture
o Poor acceleration
o Engine will not ‘rev’ out, blubbers on top
o Misfire at low engine speeds










