Honda BF75A/BF90A THROHLE CABLE ADJUSTMENT

THROHLE CABLE ADJUSTMENT

1) Measure the length of the throttle cable connection part at the open side and close side of the throttle arm side. It should be 14 mm (0.5 in) from the threaded end to the lock nut end at the open side, while it should be 16 mm (0.6 in) at the close side as shown.

2) If the measurement is outside the specification, adjust by loosening the adjusting nut at the open or close side.

3) Measure the length of the throttle cable connection part at the open side and close side of the throttle cam side. It should be 34 mm (1.3 in) at the open side and 25 mm (1.0 in) at the close side.

4) If the measurement is outside the specification, adjust by loosening the adjusting nut at the open or close side.

5) Move the remote control lever to the “F” (Forward) fully open position (Remote control type).

Move the throttle grip to the fully open position (Tiller handle type).

NOTE:

If it is  hard to  move the  remote control  lever to the  “F”
(Forward)  position  with  the  engine stopped,  move the
lever while turning the  propeller or propeller shaft.
Do  not  move  the  remote  control  lever  with  force  or
damage to the gearshift system can  result.

6) Check whether the throttle arm is in contact with the fully open position stopper this time. If it is not, adjust as follows.

7)    To adjust:

Remote control type:  Move the  remote control  lever to the

“N”  (Neutral)  position.

Tiller handle type:  Move the throttle grip to the fully closed

position.

8)    Loosen the shift pivot lock nut,  and  remove the 6  mm  lock

pin and 6 mm washer from the shift pivot.

Disconnect the shift pivot from the throttle  arm  and adjust

by turning the shift pivot.

9)    Set the shift pivot on the throttle arm, and move the remote

control  lever or throttle grip to the fully open  position.

The throttle  arm  should  be  in  contact with  the  fully open

position stopper.

Move the  remote  control  lever to  “N”  (Neutral)  position

(Remote  control  type)  or throttle  grip  to  the  fully  closed

position  (Tiller handle type), and tighten the shift pivot lock

nut.  (See P.16-3 for shift pivot installation  position.)

10)  Check the clearance  between  the  carburetor throttle  lever

and carburetor fully open  position  stopper with the throttle

arm in contact with the fully open  position stopper. It should

be  1  mm (0.04 in) or less. Adjust, if the clearance is not 1  mm

(0.04 in) or less.

11) To  adjust:

Remote control type:  Move the  remote control  lever to  “N”

(Neutral)  position.

Tiller  handle  type:  Move  the  throttle  grip  to  fully  closed

position.

12)  Loosen the adjusting  nuts at the open side and close side of

the throttle cable.

Move the  remote control  lever  or throttle  grip to  the  fully

open  position.

13)  Adjust the  clearance  between the carburetor throttle  lever

and carburetor fully open  position stopper to  1  mm  (0.04 in)

or less  by turning the adjusting  nut at the open  side of the

throttle cable.

14)  Remote control type: Return the remote control  lever to “N”

(Neutral)  position.

Tiller handle type:  Return the throttle grip to the fully closed

position.

15)  Check whether the two throttle cam  alignment  marks align

with the center of the throttle cam  roller.

If they do  not align,  adjust  by turning  the  adjusting  nut at

the close side of the throttle cable.

16) After adjustment, tighten the adjusting nuts at the open side

and close side of the throttle cable securely.

Honda BF75A/BF90A Repair manual