2004-2006 Kawasaki Prairie 700 4x4, KVF 700 4x4 service manual, Page 128Get this manual
ENGINE TOP END 5-21 Camshaft
KAeR Inspection
The Kawasaki Automatic Compression Release (KACR) momentarily opens the exhaust valves on th compression stroke at very low speedsThis allows some of the compression pressure to escape, making it easy to turn over the eng ine during startingDue to the simplicity of the mechanism, no periodic mai ntenance is needed Th ere are only two symptoms of problems with the KACR mechanism [AJ: compression is not released during starting and compression is released during running
(1) If compression is not released during starti ng, the weights are not returning to their rest position Remove the camshaft (see Cams haft Removal) Re move the KAeR unit Visually inspect the spring If damaged, deformedor missingreplace the spring Remove the spring and move the weights back and forth If the weights do not move smoothly, replace the KACR unitAlso inspect the exhaust rocker arm for any damage, and replace the rocker arm if necessary[A] Rest Position (compression is released) [8Weights [C] Spring (2) If compression is released hile the engine is runningthe weights are not swinging out Remove the spring and move the weights back and forth If the weights do not move easily from the retra cted positionreplace the KACR unitAlso inspect the exhaust rocker arm for any damageand replace th rocker arm if necessary[A] Ru nning Position (compression is not released) [B] We ights [C) Spri ng