BoonDocker YAMAHA: Non-turbo Control Box Phazer - Manual (Page 5)

BoonDocker – 2379 Heyrend Way Idaho Falls, Idaho 83402 – 208-542-4411 / 877-522-7805
www.boondockers.com – email: [email protected] – fax: 208-524-7381
Revised 02-14-07 Page 5 of 17
Fuel Screens (RPM Adjustments) M1L

LO MD HI tr
3000 00 00 00 00
M1L This displays current map that is being used – in this case, M1 stands for Map1. Five possible fuel maps can
be used. Each map consists of all your configuration and fuel settings for a particular setup. The “L”
indicates that this map is Locked – this means the settings cannot be changed (the up/down buttons have no
effect). If the map is Unlocked, adjustments can be made to any setting and these changes will be
automatically saved to the selected map. Refer to the Load/Copy sections for more details about how to lock
and unlock individual maps.
3000 This is the RPM Region for the fuel adjustments on this screen. For this example, this screen’s adjustments
will be centered at 3000rpm. There are usually 5rpm regions (some boxes with special programming will have
additional regions). The effect of the 3000rpm setting tapers off until 5000rpm (as shown in the picture
above), while the effect of the 5000rpm setting is ramping up. The other regions work similar to this.
LO This adjustment is for Low load conditions. This will affect throttle settings from approximately 0 up to 1/3.
For rpm region 3000, this adjustment will affect idle. For other rpm regions, this will affect deceleration and
light-load cruising conditions.
MD This adjustment is for Medium (mid-range) load conditions. This will affect throttle settings from
approximately 1/3 up to 2/3.
HI This adjustment is for High load conditions. This will affect throttle settings from approximately 2/3 to full
open.
tr This adjustment is to Trim the PTO cylinder (left-side cylinder when sitting on the sled). This is used to add
or subtract fuel on the left side if fine-tuning is desired. The LO adjustment is not affected by the Trim value –
trim is only used for the MD and HI settings. It is best to tune the right (mag) cylinder first then make
adjustments to the left (PTO) cylinder if necessary. If more than a small amount of adjustment is required
(greater than plus or minus 7), check for other problems first (such as incorrect harness connections to the PTO
cylinder).
00 Fuel adjustment value. Each setting can go from –99 to 127. Refer to the EFI tuning section for tuning
guidelines.
Note 1: Each number is equal to about 1/2% of the total available fuel. The maximum available fuel will vary with each
engine as well as with elevation and air temperature.
Note 2: It is possible to max the injector (duty cycle > 100%) before the adjustment setting is maxed! Pay careful
attention to EGT’s, O2 readings, and fuel pressure when running with engine mods that require a lot of additional fuel!