Model #1812 & #1813
Rod/Jet Reference Chart
(.17272 x .11938)
(.17272 x .10668)
(.18542 x .10668)
(.17272 x .13208)
(.17272 x .14478)
(.1651 x .09398)
(.1651 x .10668)
(.1651 x .11938)
(.1778 x .14478)
(.1651 x .14478)
(.16002 x ..09398)
(.16002 x .11938)
(.17272 x .14478)
(.17018 x .12446)
(.1651 x .10668)
(.1651 x .14478)
(.1778 x .09398)
(.1778 x .10668)
(.1778 x .11938)
(.1778 x .13208)
(.1778 x .14478)
(.17018 x .12446)
(.16002 x .09398)
(.18542 x .11938)
(.18542 x .10668)
(.18542 x .09398)
#1812 / #1813 Calibration Reference Chart / Primary Metering
Stock Calibration
Numbers in white are the steps obtainable using jet and rod combinations
shown on the following page.
Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired
for your calibration. Normal calibration changes will be within the gridded diagonal
area. That is, Cruise and Power mode changes should be in the same direction (either
richer or leaner) and usually by the same amount.
Ref# Main Jet Metering Rod
1 0.113(.22606) .068 x .047
2 0.113(.22606) .068 x .042
3 0.116(.29464) .073 x .042
4 0.113(.22606) .068 x .052
5 0.113(.22606) .068 x .057
6 0.113(.22606) .065 x .037
7 0.113(.22606) .065 x .042
8 0.113(.22606) .065 x .047
9 0.116(.29464) .070 x .057
10 0.113(.22606) .065 x .057
11 0.113(.22606) .063 x .037
12 0.113(.22606) .063 x .047
13 0.116(.29464) .068 x .057
14 0.116(.29464) .067 x .049
15 0.116(.29464) .065 x .042
16 0.116(.29464) .065 x .057
17 0.113(.22606) .070 x .037
18 0.113(.22606) .070 x .042
19 0.113(.22606) .070 x .047
20 0.113(.22606) .070 x .052
21 0.113(.22606) .070 x .057
22 0.110(.2794) .067 x .049
23 0.107(.27178) .063 x .037
24 0.113(.22606) .073 x .047
25 0.113(.22606) .073 x .042
26 0.113(.22606) .073 x .037
Step 2 Find the number that is nearest your desired combination. This is your Calibration
Reference Number.
Step 3 Go to the next page. Find the Calibration Reference Number you have just selected in
Step 2. Listed will be the Main Jet and Metering Rod required to achieve the desired
fuel metering for the Primaries.
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