2.
Check the spark plug type, and check the spark
plug gap with a feeler gauge.
Standard spark plug:
BPR4ES
Spark plug gap:
0.7-0.8 mm (0.028-0.031 in)
1. Gap
1
3.
Clean the gasket and plug surfaces and install
the spark plug finger-tight before tightening to
the following torque:
Spark plug torque:
20 N·m (2.0 kgf·m, 15 lb·ft)
1.
Check for discoloration and remove carbon de-
posits with a spark plug cleaner or wire brush.
The normal electrode color will be tan.
YUM1A UMAX RALLY
1. Spark plug cap
2. Spark
plug
2
1
YUM2A UMAX RALLY
1. Spark plug cap
2. Spark
plug
1
2
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
MAINTENANCE AND ADJUSTMENT
©2021Yamaha Golf-Car Company
