Installation Manual

Q113.001

2004-2005 Honda

TRX450R

Stage 1&2

Stage 1

For mildly tuned machines using the stock airbox with stock or

aftermarket filter. May also be used with a good

aftermarket exhaust system.

Stage 2

For mildly tuned machines using the stock airbox with the lid removed

with the stock or aftermarket filter. May also be used with a good

aftermarket exhaust system.

Parts List

1 Main Jet DJ104

1 Main Jet DJ108

1 Main Jet DJ112

1 Main Jet DJ116

1 Main Jet DJ120

1 Main Jet DJ155

1 Main Jet DJ160

1 Main Jet DJ165

1 Main Jet DJ170

1 Main Jet DJ175

1 Main Jet DJ180

1 Fuel Needles DNO912

1 Main Air Jet Plug DCO500

1 Air Jet Plug Tool DT001

1 Adjusting Washer DW0001

1 E-Clips DE0001

1 Main Jet Adapter DJA001

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Q113.001 2004-2005 Honda TRX450R Stage 1&2 Stage 1 For mildly tuned machines using the stock airbox with stock or aftermarket filter. May also be used with a good aftermarket exhaust system. Stage 2 For mildly tuned machines using the stock airbox with the lid removed with the stock or aftermarket filter. May also be used with a good aftermarket exhaust system.
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STAGE ONE INSTRUCTIONS 1. Remove the top carb plate. Remove the two needle plate screws (Fig.A). Flip the linkage forward and remove the needle. The slide does not need to be removed from the carb, just pull the stock needle out from here. (Fig.B). 2. Install Dynojet needle on groove #3 from the top for applications below 5000 feet, groove #2 for above 5000 feet, using all stock spacers. Install the Dynojet washer above the E-clip. 3. Locate the main air jet (Fig.C).