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Author Topic: 99 IS pilot screw turns  (Read 956 times)
Memor86
Member
*****
Posts: 99

Tampico, Mexico


« on: September 29, 2016, 12:58:15 PM »

how many turns should the pilot screw be set on a 99 IS bike?
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nerider2
Member
*****
Posts: 115


Omaha, NE


« Reply #1 on: September 29, 2016, 01:28:42 PM »

NITIAL OPENING:
         '97 GL1500C/CT:
           Except California type : 1-3/4 turns out
           California type           : 2 turns out

         GL1500CF, After '97 GL15OOC/CT:
            Except California type : 2-1/4 turns out
            California type           : 2-3/8 turns out

1.  Turn the pilot screw clockwise until it seats lightly, then
     back it out to the specification given. This is an initial setting
     prior to the final pilot screw adjustment.

2.  Warm up the engine to operating temperature. Stop and
     go driving for 10 minutes is sufficient.

3.  Stop the engine and connect a tachometer according to
     the tachometer manufacturer's instructions ( A Digi Sync will do).

4.  Start the engine and adjust the idle speed with the throttle
     stop screw. IDLE SPEED: 900 +/- 100 rpm.

5.  Turn each pilot screw 1/2 turn out from the initial setting.

6.  If the engine speed increases by 50 rpm or more, turn each
     pilot screw out by successive in 1/2 turn increments until
     engine speed does not increase.

7.  Adjust the idle speed with the throttle stop screw.

8.  Turn the No.1 carburetor #1 pilot screw in until the engine
     speed drops by 50 rpm.

9.  Turn the #1 carburetor pilot screw out to the final opening
     from the position obtained in step 8 by 1 complete turn out.

     FINAL OPENING: 1 turn out

10. Adjust the idle speed with the throttle stop screw.

11. Perform steps 8, 9 and 10 for the No. 2, 3, 4, 5 and 6
     carburetor pilot screws.
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2014 Daytona Blue Ultra Limited
2000 Stealth Interstate
1999 Excelsior-Henderson
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Memor86
Member
*****
Posts: 99

Tampico, Mexico


« Reply #2 on: September 29, 2016, 01:55:54 PM »

how is one supposed to turn the pilot screw with the bike runing?, i was thinking i had to remove the elbows to reach!
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Hook#3287
Member
*****
Posts: 6444


Brimfield, Ma


« Reply #3 on: September 29, 2016, 03:15:03 PM »

Special tool from honda that's big bucks.
 
I bought this:

https://www.powersportsplace.com/parts/ptm-pp2821?seid=pspse1&cm_mmc=pla-google-_-shopping-_-pspse1-_-pit-posse-motorsports&gclid=CjwKEAjw8da8BRDssvyH8uPEgnoSJABJmwYoBYnOcRgRzFUILzou8OX9yCvl7eO8E6ThzZV7F4RtYBoCu-Pw_wcB

Others have made their own small tool, but that requires heat proof hands.
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Patrick
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Posts: 15433


VRCC 4474

Largo Florida


« Reply #4 on: October 02, 2016, 04:53:57 AM »

I remove the screws/needles and cut a slot in them. Add a dab of never-seize to the threads. I also just set them at 2.25 turns and go.
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