VENOM VEN-1827, Instruction Manual

-The low speed needle controls the low rpm range of the engine.
-The high speed needle controls the high rpm range of the engine.
-The idle screw mechanically sets the opening of the carburetor and adjusts the minimum gap for air 
to pass through the carburetor. In a boat application this setting is often set to the maximum opening.

Engine Operations Continued

Engine Operations Continued

Standard opening of each needle as follows:

High

Low

1 5/8 + 1/4

1 + 1/4

To start the engine;
 

1. 

First be sure the correct fuel mixture has been added and the fuel tank is full.

2. 

Pump the priming bulb on the carburetor until you see the fuel enter the bulb.

3. 

Pump the priming bulb 3 more times.

4. 

Be sure all people and objects are clear of any rotating parts.

5. 

With one hand, apply firm pressure to hold the top of the engine in place and  

with the other hand take hold of the pull start T-handle.

6. 

With a fast deliberate motion, pull the T-handle quickly away from the engine  

but no further than 10 inches while firmly holding the engine in place.

7. 

Repeat as necessary until the engine either starts or shows signs of starting.

8. 

You may adjust the low speed needle, either open or close, to help the  

engine start but only in small increments of 1/8th of a turn at a time until the  

engine starts.

9. 

Repeat step 6 until the engine starts.

10.    Once the engine starts return the T-handle to the rest position and remove  

your hands from the engine and any rotating parts. 

To shut the engine off press the red shut off button located on the exterior of the model or on the 
engine itself.

It is very important not to over-stress a new engine in the first few running hours of its life. It is highly 
recommended that the fuel and oil mixture be made slightly more oil rich for optimum lubrication 
during the first 2-4 hours of operation. In addition, it is also recommended that the engine speed 
should be limited to about 7000rpm or about half throttle during this time. Please follow the break in 
schedule below.

Initial running - 20:1 fuel ratio for 1hr
25:1 fuel ratio for 3hrs
30:1 fuel ratio for standard operation

The engine will continue to improve in performance and will continue to break in for a short time 
following the initial 4hrs of operation. 

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