Dying while at idle


Information and questions on GL1000 Goldwings (1975-1979)
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Boost190
Posts: 5
Joined: Sat Nov 21, 2020 6:34 pm
Location: North carolina
Motorcycle: 77 gl1000

Dying while at idle

Post by Boost190 »



Hello all, got a 77gl1000 fresh full carb rebuild with randakks master kit, fresh set of plugs.. reassembled back on the bike.. will run great at a high idle(2000+) slow to return to idle speed and will shut off after less than a minute of 1000 rpm of idle...mix screws are set to the recommended setting of 2 1/2 TURNS out ..bike runs good while riding but wont low idle ,atleast not for long....attached are pics of the plugs..again they are new and gapped to spec.. any ideas?






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winguyjo
Posts: 413
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: Dying while at idle

Post by winguyjo »

the right coil fires 1 and 2, and the left coil fires 3 and 4, so i don't think we can blame the richness/misfire of 2 and 3 on a bad coil or points. 1 and 2 seem a bit lean.
my thinking is to to re-check float height and do the idle drop procedure.
Boost190
Posts: 5
Joined: Sat Nov 21, 2020 6:34 pm
Location: North carolina
Motorcycle: 77 gl1000

Re: Dying while at idle

Post by Boost190 »

I believe i have to agree with you.. i check points today and valve clearance just to be sure.. everything checked good there..thanks for the reply and seconding that thought..two heads better than one as they say ;)
casper1231
Posts: 2
Joined: Sun Jun 10, 2018 9:55 am
Location: Stafford va
Motorcycle: 1977 GL1000

Re: Dying while at idle

Post by casper1231 »

are you using the split timing to set your points? I had the same problem untill I tried doing that also with the points you should set them to the high end of the recommended gap 0.016 I believe.
Boost190
Posts: 5
Joined: Sat Nov 21, 2020 6:34 pm
Location: North carolina
Motorcycle: 77 gl1000

Re: Dying while at idle

Post by Boost190 »

No,I wasnt using the split timing but i can easily go back and do it..Also i read that your not suppose to set floats with the carb set sitting upside down. It said you should set them when the carbs standing up on their end so the floats are unloaded..
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winguyjo
Posts: 413
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: Dying while at idle

Post by winguyjo »

correct ... the tang on the float should be just touching the tip of the float needle. to do this you would stand the carb rack on end and lean it somewhat.
Boost190
Posts: 5
Joined: Sat Nov 21, 2020 6:34 pm
Location: North carolina
Motorcycle: 77 gl1000

Re: Dying while at idle

Post by Boost190 »

Well thats the plan then.. will post back when its done .. thanks
Winger1957
Posts: 24
Joined: Tue Oct 13, 2020 3:47 pm
Location: San Antonio TX
Motorcycle: 1978 GL1000

Re: Dying while at idle

Post by Winger1957 »

Boost190 wrote: Wed Nov 25, 2020 10:02 pm Well thats the plan then.. will post back when its done .. thanks
I guess it worked. How about an update?
Boost190
Posts: 5
Joined: Sat Nov 21, 2020 6:34 pm
Location: North carolina
Motorcycle: 77 gl1000

Re: Dying while at idle

Post by Boost190 »

Ok , finally got a chance to button it back up after adjusting the floats.. which were off a bit. Also found an intake o ring that had a chunk missing. After firing the bike back up i also noticed that there was an excessive amount of spark jumping from the points(im trying to add a pic)..so ordered a condensor and that cured that. Warmed the bike to operating temps and synced the carbs...All problems seem to be fixed .. thanks for the help and suggestions..
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winguyjo
Posts: 413
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: Dying while at idle

Post by winguyjo »

glad you got it sorted out.
pretty cool image of the spark too !
Winger1957
Posts: 24
Joined: Tue Oct 13, 2020 3:47 pm
Location: San Antonio TX
Motorcycle: 1978 GL1000

Re: Dying while at idle

Post by Winger1957 »

Boost190 wrote: Mon Jan 04, 2021 9:27 pm Ok , finally got a chance to button it back up after adjusting the floats.. which were off a bit. Also found an intake o ring that had a chunk missing. After firing the bike back up i also noticed that there was an excessive amount of spark jumping from the points(im trying to add a pic)..so ordered a condensor and that cured that. Warmed the bike to operating temps and synced the carbs...All problems seem to be fixed .. thanks for the help and suggestions..
Yeah, cool image of the sparks. Points look fresh. I actually have a more impressive image waiting for upload... my 14 yr old son actually helping me rebuild my front calipers. His hands got dirty and everything :)


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