1978 GL1000 Will not start!
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- Rusty Probie
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- Joined: Fri Sep 24, 2021 9:44 am
1978 GL1000 Will not start!
Hi everyone, I hope someone has an answer for this. I got a GL1000 1978 model awhile back, it has sat for 33 years before I rescued it. So far I’ve cleaned the carbs thoroughly I’ve pulled and cleaned the gastank and replaced the fuel filter and checked flow at the fuel pump I’ve checked point gap and sp gap and all valve clearances the timing is spot on. The compression is low on #4 cyl at 105 all the others have 145-150. So when I try to start it it’ll pop and backfire it absolutely will not run. I’ve pulled the exhaust and cleaned out the mouse packing. Still no luck... what am I missing?
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- Titanium Member
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Re: 1978 GL1000 Will not start!
are the primary ignition wires hooked up to the correct coils? reverse them and see what happens.
1975 GL1000 Restored (sold)
1983 GL1100 Custom (sold)
1976 GL1000 Project (finished and sold)
Another1976 GL1000 Project (finished and sold)
1983 GL1100 Custom (sold)
1976 GL1000 Project (finished and sold)
Another1976 GL1000 Project (finished and sold)
- CYBORG
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Re: 1978 GL1000 Will not start!
Conssider changing the condensers as well
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
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- Chrome Member
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Re: 1978 GL1000 Will not start!
How’s the fuel pump?
1983 GL1100A Aspencade
1977 GL1000
1978 GL1000
1979 GL1000
“I see Angels on Ariels in leather and chrome,
Swoopin' down from Heaven to carry me home."
1977 GL1000
1978 GL1000
1979 GL1000
“I see Angels on Ariels in leather and chrome,
Swoopin' down from Heaven to carry me home."
- pidjones
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Re: 1978 GL1000 Will not start!
He said that he check the fuel flow.
Do you give it plenty of time to fill the float bowls? I pulled mine out from two-month storage with empty float bowls and it cranked a good 45 seconds (NOT continuous!) before it fired. Warmed up, took the choke off and she sounded fine! I plan to ride her to a show tomorrow. You have to fill four automotive-sized float bowls. Also, make sure you have a clean air filter and good plug leads/caps.
Do you give it plenty of time to fill the float bowls? I pulled mine out from two-month storage with empty float bowls and it cranked a good 45 seconds (NOT continuous!) before it fired. Warmed up, took the choke off and she sounded fine! I plan to ride her to a show tomorrow. You have to fill four automotive-sized float bowls. Also, make sure you have a clean air filter and good plug leads/caps.
"Love 'em all.... let God sort 'em out!"
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
Ex 2006 GL1800 - the Black Pearl SOLD! to make room for:
2021 Can-Am Spyder RT Limited Dark Chalk Metallic
1975 Red GL1000 project - ex Pistol Pete project
1972 Triumph T150V Trident rescue - finished and FOR SALE!
1976 Yamaha RD400c
1978 GL1000 with '75 engine - the Hunley
Ex 1978 GL1000
Ex 1979 GL1000
Ex '79 CB750F rat bike
Ex '86 SEi
Ex '77 GL1000
Ex '76 RD400
Ex '72 Penton 125 set up for flat track
Ex '73 RD250
Ex '68 TR6C - chopped
- gltriker
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Re: 1978 GL1000 Will not start!
as pidjones has detailed above , it takes quite a few minutes of 15 seconds engine crank, cool starter motor for 3 minutes, repeat, to adequately fill the carburetors' fuel bowls. Some folks give the starter motor (and battery!) a merciful break and fill the fuel bowls manually through the fuel pump-to- carburetors "rack" fuel inlet hose barb fitting.
Open each fuel bowl drain screw to confirm that fuel is actually in the fuel bowl. Carefully, Set each carburetors' air/fuel pilot mixture screws at 3 turns out from seated position, too.
Have you seen, and read, and followed Randakk's start up preparations information?
https://www.randakksblog.com/starting-a ... ng-lay-up/
'Cleaned the carbs' is usually just good practice for continuously removing and reinstalling them until the entire fuel system is correctly addressed.
edit: I re-read your first post. Seems you have already accomplished a lot more fuel system preparation than a typical new owner has before posing their questions to the Club.
Open each fuel bowl drain screw to confirm that fuel is actually in the fuel bowl. Carefully, Set each carburetors' air/fuel pilot mixture screws at 3 turns out from seated position, too.
Have you seen, and read, and followed Randakk's start up preparations information?
https://www.randakksblog.com/starting-a ... ng-lay-up/
'Cleaned the carbs' is usually just good practice for continuously removing and reinstalling them until the entire fuel system is correctly addressed.
edit: I re-read your first post. Seems you have already accomplished a lot more fuel system preparation than a typical new owner has before posing their questions to the Club.
Cliff (74yrs )
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
- Dr. Frankenstein
- Silver Member
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Re: 1978 GL1000 Will not start!
Do you have a spark from all four plugs? Try trimming a little off the plug-end of the wires and putting the plugs back on. You do have new plugs, yes...?
- gltriker
- Honored Life Member
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Re: 1978 GL1000 Will not start!
Excellent advice. If it sounds like a shotgun blast, and the 4 spark plug wires are each routed to a proper spark plug connection, odds are the primary ignition wires correct terminal placements are reversed, or mismatched component colors' connections have been erroneously created under the rubber umbrella.MikeNTexas wrote: ↑Fri Sep 24, 2021 10:23 am are the primary ignition wires hooked up to the correct coils? reverse them and see what happens.
an example of mismatched wire colors?- Several years ago, a fellow was having similar noisy issues.
Turned out he had accidentally plugged both individual male primary ignition leads, from their respective breaker points, into just one of the two double female wire terminals .
Check to be sure the spark plug wires are routed to their proper cylinder number orientation, too.
- A too common Clymer's GL1000 manual, ignition system illustration error.
The right hand ignition coil services both front cylinders. #s 1 and 2.
The left hand ignition coil services both rear cylinders. #s 3 and 4.
Cliff (74yrs )
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
Keep your eyes and ears open and you'll learn something new, everyday.
New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^
RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi
"Can't see the paint when your looking thru the handlebars..........." -Oldewing
"I'd rather Ride than Shine" -RAT Me Too!!
Cliff
'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM https://nakedgoldwingsclub.com/forum/page/Welcome
previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
- Sidecar Bob
- Honored Life Member
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Re: 1978 GL1000 Will not start!
Re dry carbs: Somewhere in the information on the Randakk site he said to disconnect the fuel line and pour 180cc of fresh fuel in to fill the float bowls before attempting to start it so that you don't have to keep cranking to get the fuel pump to fill the carbs.
I've been doing that since I first read it and it usually results in the engine starting very easily. It also works for bikes without fuel pumps that have vacuum petcocks - 45cc per carb down the fuel line and you don't have to crank the engine enough to produce enough vacuum to open the vacuum petcock long enough for the carbs to fill before it starts.
I've been doing that since I first read it and it usually results in the engine starting very easily. It also works for bikes without fuel pumps that have vacuum petcocks - 45cc per carb down the fuel line and you don't have to crank the engine enough to produce enough vacuum to open the vacuum petcock long enough for the carbs to fill before it starts.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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