Beta Enduro RR 350 2015 Workshop Manual page 20

2
Cap and spring removal.
Tensioner support complete with piston.
18
1
2
3
4
2.1.1 CYLINDER HEAD: DISASSEM-
BLING MECHANICAL
SIONER
A chain which is not well-tensioned can cause:
•
excessive vibrations for the chain which could
make it jump teeth on the camshafts thus dama-
ging the engine;
•
incorrect and premature wear of the support bea-
rings of the camshafts.
The engine is equipped with a hydraulic tensioner
in order to provide the chain with proper tensio-
ning.
To remove it, proceed as follows: remove the cap 1
and the spring 2.
Fully unscrew the tensioner support 3 from the
cylinder.
To slip the piston 4 out, just push it out from the
tensioner support 3.
TEN-