Yamaha Grizzly and Kodiak 700 Single APXUpdated 2 months ago
Please read the below Important Information relating to Safety & Fuel Tuning by clicking on the text below.
Important Information - Safety
WARNING: Before starting the installation of any ATV, UTV, or SXS aftermarket parts, it is important to prioritize safety. Make sure you are using suitable protective gear, this includes but is not limited to safety goggles, gloves and protective clothing.
Ensure your vehicle is on flat, stable ground. Installing parts on uneven or unstable surfaces can potentially lead to injury or damage to the vehicle. The vehicle should be turned off and cooled down before proceeding with the installation. Attempting to install parts on a running or hot vehicle can result in burns or other serious injuries.
After completing installation, it is important to inspect and check the tightness of any and all nuts, screws, and bolts. Failure to properly secure these fasteners can lead to component failure or detachment during riding, posing significant safety risks to both the rider and bystanders. The vehicle should be warmed up and subsequently cooled down to account for any thermal expansion or contraction effects that may affect the tightness of the fasteners.
It is crucial to inspect and tighten screws and bolts as necessary after initial rides, as vibrations and stresses during operation can cause fasteners to loosen over time.
It is important to pay close attention to the condition of the exhaust system and undertake the necessary measures to maintain optimal performance. Failure to properly maintain the exhaust system can result in reduced engine performance and potential safety hazards. Remember to repack exhausts as necessary to ensure efficient exhaust flow and minimize any potential restrictions that could adversely affect performance.
Prior to starting the installation process, it is important to thoroughly read all provided instructions to familiarize yourself with the installation procedures and any specific requirements or precautions. Failure to follow the instructions could result in improper installation or component failure.
Please check your local laws and regulations governing the use of aftermarket parts on your vehicle. Failure to comply with these regulations can result in legal repercussions, fines, or other penalties. Therefore, it is important to research and understand the applicable laws and regulations before installing aftermarket parts on your vehicle. Always ensure that any modifications made to your vehicle comply with local regulations.
Please check and read the full Warranty Information that can be found at:
Important Information - Fuel Tuning
The use of an aftermarket performance exhaust requires a crucial step - EFI tuning. RJWC Powersports exhaust systems must be accompanied by a proper re-flashing or use of an EFI Tuner to prevent the engine from running lean, which can result in engine damage. To guarantee a correct air to fuel mixture, make sure to adhere to the manufacturer’s recommended settings for your fuel tuner.
Neglecting to properly tune the engine using an EFI tuner when using an RJWC Powersports exhaust will void the exhaust warranty. Any problems arising from the engine not running correctly, such as a lean condition or incorrect air/fuel ratio, will not be considered a valid warranty claim.
Please note that if your vehicle differs from the base model, additional modifications such as a different tune, turndown pipe, or other adjustments may be necessary to achieve a proper fit and optimal performance. All RJWC Powersports exhausts are designed and tested on stock-equipped vehicles.
Spark Arrestor & Shim Ring Installation
The Spark Arrestor and Shim Ring are not pre-installed, they can be found in the Hardware Kit.
To install the Spark Arrestor, start by removing the End Tip. Unscrew the four M6x20 Cylinder Screws in the End Tip to remove it.
There is a small circular groove in the End Cap, in this groove you need to place the Shim Ring first, then the Spark Arrestor.
With the Shim Ring and Spark Arrestor in place, reinstall the End Tip by screwing back in the M6x20 Cylinder Screws.
Removing the Stock Exhaust
Remove the seat and the plastic fastenings from the central panel.
Lift the front hatch and remove the two screws holding the plastic panel in place.
Remove the plastic rivets as you loosen the plastic panels from the front and left-side of the vehicle.
Keep hold of the plastic rivets, you will need to use these to reattach the plastic panelling after installation.
When you have removed all plastic rivets, you should now easily be able to remove the front and left-side plastic panels.
Locate the hinged cover that protects the connection between the header pipe and the muffler pipe.
Remove the two small screws, this will allow you to access the springs that secure the header pipe and muffler pipe in place.
Using a spring puller tool, remove the two springs that connect the header pipe to the muffler pipe.
Keep the stock gasket in place and dispose of the two springs. These will be replaced during installation.
Remove the bolt that connects the muffler to the frame, you can now remove the stock exhaust.
Installing the APX Exhaust
Place the G2 Gasket in-between the pipe and the APX can, lining up the holes between all three. Use 5x M6x20 Hex Flange Screws to secure the pipe to the APX.
The G2 Gasket should be tightly sandwiched between the pipe flange and the APX can.
Place the Upper and Lower Bracket around the APX exhaust can. Use 2x M5x16 Cylinder Screws and 2x M5 Washers on each side to secure the clamps in place.
Do not tighten the clamps fully, as their positioning may need to be adjusted.
Install the Yamaha bracket to the Upper Bracket, following the positioning in the picture.
Insert 1x M8 Washer onto 1x M8x20 Bolt for each hole.
Take the longer 1x M8x30 Bolt and place on the larger 1x M8 8.4 Washer, then push on 1x Rubber Bushing as tightly as you can.
This should thread through the whole facing outwards, with one more rubbing bushing pushed.
Use the above image to double check how the bracket should look.
We recommend having a second set of hands for the next steps to hold the APX exhaust in place.
Making sure the stock gasket is in place, replace the previously removed stock springs with the 2x Exhaust Springs provided.
Use these springs to connect the APX muffler pipe to the header pipe.
With the APX exhaust lifted into place, secure the Yamaha Bracket against the frame and tighten the 1x M8x30 bolt.
You may need to adjust the Upper and Lower Brackets to ensure the Yamaha Bracket is in place. When it is secured to the frame, tighten all screws including those on the Brackets.
Attach the provided heatpad on any sensitive plastic plastic parts which may be in close proximity.
Refit all of the plastic paneling using the stock rivets to secure them in place.
With the exhaust mounted you need to tighten all screws in place. You should start your vehicle, allow the exhaust to get warm and shut the machine down to cool. When it is cool, double check all screws and bolts and retighten them.
After your first ride, double check all screws and bolts and retighten.
You have now completed the installation of the Yamaha Grizzly and Kodiak 700 Single APX.
If you have any questions, or need any help please send an email to [email protected]