PWC Base Maps

Base maps are designed as a good starting point for the ultimate tune. Fine tuning will always net slightly larger gains and customers using their PWCs for racing are recommended to have at least the air fuel ratio checked.

Key to Yamaha Base Maps

Key to Kawasaki Base Maps

Key to Seadoo Base Maps

Key to Hydrospace Base Maps

Yamaha

Choose the base map based on fuel system and supercharger wheel used and then on the octane of the fuel to be used. Free flow exhaust, intercooler, aftermarket air cleaner systems and spark arrestor removal do not affect the choice of base map.

Notes:

Base maps suit standard injectors.
All Yamaha maps have an 8400 rpm limit.
The different octane maps have different ignition main table curves and different ignition compensation tables.

Click on the Base Map name to download the file.

Base Map	Fuel System	Fuel Pressure	Supercharger wheel	Fuel Octane
Base Map	Fuel System	Fuel Pressure	Supercharger wheel	USA (RON+MON)/2	Australia Europe (RON)
Yamaha 1A	Standard	50 psi	R&D C1-7,C1-11,C3* Riva B1	89	91
Yamaha 1B	Standard	50 psi	R&D C1-7,C1-11,C3* Riva B1	93	95
Yamaha 1C	Standard	50 psi	R&D C1-7,C1-11,C3* Riva B1	95	98
* Do not use a Base map 1 for R & D C3 supercharger wheel with an aftermarket intercooler
Yamaha 2A	Rising rate 1 to 1 boost sensed fuel pressure regulator	50 psi	R&D C1-7,C1-11,C3 Riva B1	89	91
Yamaha 2B	Rising rate 1 to 1 boost sensed fuel pressure regulator	50 psi	R&D C1-7,C1-11,C3 Riva B1	93	95
Yamaha 2C	Rising rate 1 to 1 boost sensed fuel pressure regulator	50 psi	R&D C1-7,C1-11,C3 Riva B1	95	98

To set fuel pressure on adjustable regulators

When using any Yamaha 2 or 3 base map, the fuel pressure should be set to the appropriate value.

Fit an accurate fuel pressure gauge to the fuel line
Run the engine with the boost compensating hose disconnected.
Run the engine for as short a time as possible as it will be running rich.
Adjust the regulator to the correct fuel pressure for the start file.
Refit the boost compensation hose.

Kawasaki

The provided base map is suitable for all compatible Kawasaki craft.

Notes:

Base maps suit standard injectors.
The Kawasaki map has a 8300 rpm limit.

Base Map

Kawasaki 2

Seadoo

Choose the base map based on the year the craft was built and then on the injectors and dash used. Free flow exhaust, intercooler, aftermarket air cleaner systems and spark arrestor removal do not affect the choice of base map.

Base Map	Year	Injectors	Dash Comms
Seadoo 1A	2004-2005	ID1000	Stock
Seadoo 1B	2004-2005	Stock	Stock
Seadoo 2A	2006	ID1000	Stock
Seadoo 2B	2006	Stock	Stock
Seadoo 3A	2007-2009	ID1000	Stock
Seadoo 3B	2007-2009	ID1000	Lambda
Seadoo 3C	2007-2009	ID1000	Lambda and GPS
Seadoo 3D	2007-2009	Stock	Stock
Seadoo 3E	2007-2009	Stock	Lambda
Seadoo 3F	2007-2009	Stock	Lambda and GPS

Hydrospace

Choose the base map based on application; use the standard boost map for stock boost performance and the 14 lb boost map as tuning basis for the 14 lb racing class.

Base Map	Boost
Hydrospace H1	14 lb
Hydrospace H2	Standard