
ETON America, LLC
Bulletin No:
Date:
0052
06/12/2007
E-TON 50 & 90cc 2 cycle engine
Oil pump testing
Service Bulletin
Page 1
The following steps are used to determine if the 2 cycle oil injector pump is
functioning properly on E-TON 50cc and 90cc 2 cycle engines.
1. Fill the fuel tank with a pre mix fuel / 2 cycle oil mixture at a 50 : 1 ratio.
2. Disconnect the oil pump line at the carburetor.
3.
Start the engine and count the drops per minute at the various RPM listed
in the table below
.
RPMs
50cc
90cc
1700 (idle)
3-4
5-6
4000
5-9
12-14
7000
8-12
20-22
Oil Pump
Line
Note: 32 Drop = aporx -1cc
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