Another Pilot screw question


Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
goldminerusa
Posts: 245
Joined: Wed Mar 07, 2012 8:20 am
Location: Southern NH, home again!
Motorcycle: 1982 gl 1100standard, 1983 1000c

Another Pilot screw question

Postby goldminerusa » Thu May 30, 2013 1:31 pm



Over the winter i rebuilt the carbs on my ~82 standard using randakks kit. Just got the time to install them and the bike fires right up and holds a steady 3500 rpm idle with the pilot screws set at 3 turns out and the idle screw completely backed off. Nothing i do while its running changes the condition. During the rebuild each carb body was soaked in carb solvent and all passages chased with a fine nylon bristle or blown out with air, so i`m quite sure the passages are clear. What does the pilot screw do? reduce air and add gas or the other way around, and which direction does what?



User avatar
virgilmobile
Posts: 7647
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Another Pilot screw question

Postby virgilmobile » Thu May 30, 2013 1:43 pm

The idle screw adjust the amount of fuel to maintain a slow idle mixture...
You would see very little affect in turning the screws while the engine is at 3k rpm.
Idle down(idle mixture/screw) adjustments are preformed with the engine at or near 850 rpm...
Adjust the screw out and watch for a reduction of idle of 50 rpm then turn the screw 1/2 turn back in.

Resolve the high idle problem first.....The main adjustment screw on the throttle plate should be able to bring the engine down to a stall by closing the throttle plates.
Be certain the throttle is actually closing....

Where you set the idle screw is fine.For now,leave it at 3 turns out.
Are the "O" rings OK on the carb/engine mount?

goldminerusa
Posts: 245
Joined: Wed Mar 07, 2012 8:20 am
Location: Southern NH, home again!
Motorcycle: 1982 gl 1100standard, 1983 1000c

Re: Another Pilot screw question

Postby goldminerusa » Thu May 30, 2013 1:49 pm

Yes they are, and bolts torqued to 4 lbs.

User avatar
virgilmobile
Posts: 7647
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Another Pilot screw question

Postby virgilmobile » Thu May 30, 2013 2:16 pm

Good.then one or more of the throttle plates are still open.
When you rebuilt them,did you pre adjust the throttle plate so they all closed at the same time.?
Could the throttle cable not allowing the throttle to completely close?

goldminerusa
Posts: 245
Joined: Wed Mar 07, 2012 8:20 am
Location: Southern NH, home again!
Motorcycle: 1982 gl 1100standard, 1983 1000c

Re: Another Pilot screw question

Postby goldminerusa » Sat Jun 01, 2013 9:57 am

Virgil i adjusted the throttle plates using the sync. adjusters to 4 threads showing. I do suspect the throttle cables may be binding. Thanks for your help.




Return to “GL1100 Information & Questions”




Who is online

Users browsing this forum: No registered users and 1 guest