Joyner JNSZ800DL Owner's Manual page 88

Method of adjusting and changing belt of water pump:
Unscrew the three fixed bolts of generator, pressing generator outward can tight the belt or
inword loose it. It is shown as fig. 46. after adjusting or change, the tightness of belt meets the
above mentioned requirement, screw the three fixed bolts of generator tightly.
Fig .46
e. care and maintenance of firing system
1. the surfaces of the two poles of spark plug should be clean and flattening. You should often
remove the carbon deposit between the two poles. The clearance should be adjusted as
0.7-0.8mm,and it should be even on the overall pole plane, shown as in Fig .47.when you
change spark plug, you should note its type isT4196J.
Fig .47
2. The end faces of the three contacts of distributor should be clean, without any oil stain and
other foreign matter. the end face of the two platina contacts of end face should be flattening,
and should be on parallel position and keep it clean. the clearance should be 0.4-0.5mm,shown
as Fig .48.if you can not meet the demand, you should loose①two fixed screws②adjust it.
About engine
39