Tech Support and FAQ
Contact us if you can't find the answer you are looking for in the information below.
AC 998 with stock clutches - model year 2017 - XS827
AC 998 with stock clutches - model year 2018+ - XS829
Yam 998 with stock clutches - all years - XS825
Yam 998 with TAPP primary and stock Yamaha secondary - XS825
Yam or AC 998 with TAPP primary and TAPP 11" Secondary - XS827*
Yam or AC 998 with TAPP primary and 11.25"-11.5" secondary - XS811*
*If you were previously using a TAPP primary with a stock Yamaha secondary and the XS825 belt and switch to the TAPP secondary, your clutch will need to be re-shimmed for the XS827 belt. Contact us for details. If you plan to use your new TAPP primary with a 11.25"-11.5" oversize secondary, it will need to be custom shimmed for the XS811 belt. Please let us know and we will shim your clutch prior to shipping.
You have options for flashing your ECU and Cluster with our performance tunes.
Option 1: Send your ECU (and cluster if purchasing a cluster flash) to us for programming. Be sure to package it carefully. You may want to ensure the parcel is tracked and / or insured as we are not responsible for loss or damage of your components when they are in transit to us.
Option 2: Purchase a flash communicator tool and install the flashes yourself as per the instructions below.
Cluster And ECU Removal
The cluster is held into the top panel of the body by some plastic clips molded into a round extrusion on its back. Remove the vent or accessory bag in front of the steering post to reach the back of the cluster.
Press on the clips to release it from the panel.
The connector is held on by a locking clip on the underside.
Removing the ECU:
Thread on Totally Yamaha: https://ty4stroke.com/threads/location-and-tips-for-ecu-removal.146926/
OR
If you have purchased or own a flash communicator:
Warning: If you have equipped your sled with an AFR module, always disconnect if before flashing the cluster or the ECU to prevent failure of the flash.
Download the Hurricane Flashing instructions:
This is a table of the different functions available for flashes with single tunes and jukebox tunes (bundles) when the flasher tool is attached verses not attached (or the flasher is not purchased).
Our recommendations:
Use stock helix angle for mountain riding
35-39 for trail riding with performance tunes
41 for drag racing with tunes up to 350 hp
40-44 for drag racing with tunes over 350 hp
Taken from the 2019 Yamaha Technical Update Manual
Dimensions are in mm.
first remove the secondary retaining bolt and aluminium plug at the end of the jackshaft as well as any washers present.
you can now set the belt deflection as desired by either manually raising the belt in secondary or driving the sled at low speed while on a track stand securely.
now loosen the jam screw locking the deflection adjuster dial on threads
screw the dial all the way out to edge of the threads where the head of the retaining bolt will be
install the Hurricane Belt Deflection Adjuster and steel washer included and secure with stock bolt
screw in dial until snug against helix and lighten the jam screw to hold it
Diagrams and specifications as listed in the Yamaha service manual with our own note added on the spec we have used.
For maximum effect the stock plenum under the hood centre section that feeds the airbox should be removed along with the rubber seal. A simple blockoff plate to cover the original inlet where the seal was located should then be affixed as shown below:
Detailed information is listed on our iGrip Studs page. The link is located on each iGrip product listing as well as on the home page if you click the iGrip logo. Here is our most popular version of the iGrip Screw Stud:
All of the studs and wide body chisels listed on our site are designed for installation on 2-ply tracks ONLY! Should you wish to add traction to a single ply track please refer to our line of iGrip traction screws. The SS line in particular has yielded great results for us on taller lug single ply tracks (such as the Backcountry X).
The graphics below are installation reference charts for our Snomaxx and Scorpion aluminum race chisels. If using re-purposed 5/16" studs for bases, their total height should be .875" - 1". Please refer to the diagrams below. For the ultimate lightweight combination, and to save time not cutting your old studs, consider our Titanium Base Studs listed in the Traction section of our on-line store.
Also listed here is a sample installation pattern that has proven to work well for the wide chisels. It repeats every three rows. It is merely a suggestion as your best pattern will depend on the number and type of chisels you use and your particular track specifications.