Section 06 ENGINE MANAGEMENT (RFI)
Subsection 05 (ADJUSTMENT)
ADJUSTMENT
THROTTLE CABLE
ADJUSTMENT
Fully depress throttle lever. Lever must touch
handlebar grip without causing strain to cable or
brackets.
F01K08A
1
1. Must touch handlebar grip
Ensure throttle plate is fully open.
Adjust cable to obtain a gap of 0.75 mm (.030 in)
between throttle lever stopper and bracket on
throttle body.
THROTTLE POSITION
SENSOR (TPS)
CAUTION: TPS adjustment cannot be done on
RFI models. TPS adjustment is preset and in-
terfering with preset adjustment may lead to
serious engine damage.
NOTE: Resetting should be done each time the
throttle position sensor (TPS) is loosened or re-
moved.
Resetting of TPS is very important. The setting of
the TPS will determine the basic parameters for all
fuel mapping.
Resetting of the TPS can be performed using the
VCK or MPEM programmer.
CLOSED TPS
NOTE: This operation performs a reset of the val-
ues in the ECU.
To perform the resetting, proceed as follows:
Using VCK
Use the VCK (Vehicle Communication Kit) (P/N 295
035 981) with B.U.D.S. software. Look under the
SETTINGsectiontoperformtheClosedTPSre-
setting. Reset the TPS value to provide the zero
scale value to ECU.
Using MPEM Programmer
Access the BOSCH SYSTEM in the MPEM pro-
grammer. Then, select ADJUSTMENT in the sub-
menu.
CAUTION: Never attempt to adjust the idle
speed through the throttle body tamper proof
screw. If so, it would impair the idle speed
stability. Besides, no adjustment could be per-
formed to correct the idle speed. The throttle
body would need to be replaced. Also take
into account that it might change the engine
emission level and the engine might not meet
the EPA/CARB requirements.
Choose CLOSE TPS in the ADJUSTMENT menu.
The screen will display the actual adjustment of
the TPS in degrees and it will also offer to adjust
it.
Reset the TPS value to provide the zero scale val-
ue to ECU.
NOTE: Make sure the throttle lever is not de-
pressed and the throttle stopper is in contact with
the tamper proof screw of the throttle body.
Selecting “YES” will instantly readjust the close
throttle position adjustment to the new setting.
NOTE: If the ECU is replaced, the TPS closed po-
sition must be reset.
IDLE SPEED
NOTE: Idle speed is factory adjusted on all RFI
models. So there is no mechanical idle speed ad-
justment to perform. ECU takes care of this.
Idle speed in water is 1550 ± 100 RPM.
smr2004-Complete Line Up 321
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