Dying while at idle

Boost190 · Post by **Boost190** » Sat Nov 21, 2020 7:35 pm

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?

winguyjo · Post by **winguyjo** » Sun Nov 22, 2020 5:09 pm

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 · Post by **Boost190** » Sun Nov 22, 2020 8:23 pm

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 · Post by **casper1231** » Tue Nov 24, 2020 3:18 pm

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 · Post by **Boost190** » Tue Nov 24, 2020 9:57 pm

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..

winguyjo · Post by **winguyjo** » Wed Nov 25, 2020 2:12 pm

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 · Post by **Boost190** » Wed Nov 25, 2020 10:02 pm

Well thats the plan then.. will post back when its done .. thanks

Winger1957 · Post by **Winger1957** » Wed Dec 30, 2020 3:12 am

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 · Post by **Boost190** » 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..

winguyjo · Post by **winguyjo** » Mon Jan 04, 2021 10:23 pm

glad you got it sorted out.
pretty cool image of the spark too !

Winger1957 · Post by **Winger1957** » Mon Jan 04, 2021 10:32 pm

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

Dying while at idle

Dying while at idle

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Re: Dying while at idle

Re: Dying while at idle

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Re: Dying while at idle

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Re: Dying while at idle

Re: Dying while at idle

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