All it needs is a battery and maybe a carb clean
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- Easter
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Re: All it needs is a battery and maybe a carb clean
Started it up, let it warm up a bit, idled down to around 750-800 then picked it up to 3000, pulled the plug cap on 4 and could not tell any difference. ???
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- robin1731
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Re: All it needs is a battery and maybe a carb clean
Easter wrote:snip................. I am using a timing light/tach/dwell meter clipped to number 4 wire so I think I am getting a pretty good rpm count and am positive that it is getting spark. .
That's not an accurate way to check for spark at the plug.
Pull the wire, install a plug and lay it on the head to ground it. Then see if you have spark at higher rpm.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
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Re: All it needs is a battery and maybe a carb clean
Easter wrote:Started it up, let it warm up a bit, idled down to around 750-800 then picked it up to 3000, pulled the plug cap on 4 and could not tell any difference. ???
That doesn't sound carb related. At least not the idle circuit.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- Easter
- True Blue Steel Biker
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- Joined: Thu Sep 13, 2012 11:33 am
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Re: All it needs is a battery and maybe a carb clean
I have used a spark plug and a screw driver shaft to ground. Strong spark. You can actually see the spark go to the plug when I start to reattach the cap. I switched plugs between #2 and #4 to verify that it wasn't a bad plug. I even pulled the screw out of the intake runner to verify that I had vacuum (running out of ideas).
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- robin1731
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Re: All it needs is a battery and maybe a carb clean
Have you tried a new plug?
.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- Easter
- True Blue Steel Biker
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- Joined: Thu Sep 13, 2012 11:33 am
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Re: All it needs is a battery and maybe a carb clean
They are new and I switched 2 and 4 to be sure.
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- robin1731
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Re: All it needs is a battery and maybe a carb clean
Be very careful doing this but maybe try a shot of starting fluid in the hole for sync screw while it is running.
Both at idle and at higher rpm.
.
Both at idle and at higher rpm.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- Easter
- True Blue Steel Biker
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- Joined: Thu Sep 13, 2012 11:33 am
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Re: All it needs is a battery and maybe a carb clean
Out of curiosity and for lack of anything else to try, I decided to see if I could sync the carbs. Especially since number 4 is from a different set. I am not sure what it says if anything but I was able to get quite a close match at 1000 rpm.
I did squirt a little starting fluid and the engine would pick up very briefly in both situations. Just to be sure nothing had changed, after I replaced the screw and let it idle down, I pulled the cap from the plug and still no change to engine speed.
I did squirt a little starting fluid and the engine would pick up very briefly in both situations. Just to be sure nothing had changed, after I replaced the screw and let it idle down, I pulled the cap from the plug and still no change to engine speed.
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Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- Track T 2411
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Re: All it needs is a battery and maybe a carb clean
If the squirt of starter fluid kicked up the engine, it's almost certainly a carb issue, I would think...
"I have no special talent. I am only passionately curious." - Albert Einstein
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New2U Bike? Read Me.
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
- gltriker
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Re: All it needs is a battery and maybe a carb clean
quote:"Out of curiosity and for lack of anything else to try,"
Did you try opening the fuel bowl drain screw? Does any fuel come out?
Did you try opening the fuel bowl drain screw? Does any fuel come out?
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
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^^^^^^^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
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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.
- Easter
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Re: All it needs is a battery and maybe a carb clean
Yes, covered somewhere above.gltriker wrote:quote:"Out of curiosity and for lack of anything else to try,"
Did you try opening the fuel bowl drain screw? Does any fuel come out?
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- robin1731
- Membership Admin
- Posts: 21724
- Joined: Mon May 29, 2006 8:31 am
- Location: Decatur, Indiana
Re: All it needs is a battery and maybe a carb clean
You've tried two different carbs and had the same issue correct?
.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- Easter
- True Blue Steel Biker
- Posts: 2999
- Joined: Thu Sep 13, 2012 11:33 am
- Location: South of Houston 100 miles
Re: All it needs is a battery and maybe a carb clean
Well maybe, the idle circuit is definitely plugged solid on the first carb but clear on this one. I have ordered a third carb but won't see it till sometime next week.
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- Easter
- True Blue Steel Biker
- Posts: 2999
- Joined: Thu Sep 13, 2012 11:33 am
- Location: South of Houston 100 miles
Re: All it needs is a battery and maybe a carb clean
Erichheath wrote "Back to Easter’s issue with 1200 carbs. The needles on the end of the starter valves (choke) and the air/fuel screws can break off. Maybe you looked for sure but you could check that they each have their needles in tact and that one isn’t broken off in the respective holes for them in the carb body. PO snafu. Another possibility is a PO substituting a mixture screw from a different model which could be a different length. Kind of a pain in the butt, but maybe."
Haven't looked closely at the starter valves except to see they move smoothly and are as a group functioning to start when cold. Mixture screws have their tips and springs and o ring. Seem to be identical in both carbs. On the carb presently on the engine adjusting the screw in or out makes no difference. But then it wouldn't if that cylinder wasn't functioning (i.e. no spark or fuel or just away on vacation)
Haven't looked closely at the starter valves except to see they move smoothly and are as a group functioning to start when cold. Mixture screws have their tips and springs and o ring. Seem to be identical in both carbs. On the carb presently on the engine adjusting the screw in or out makes no difference. But then it wouldn't if that cylinder wasn't functioning (i.e. no spark or fuel or just away on vacation)
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
- Easter
- True Blue Steel Biker
- Posts: 2999
- Joined: Thu Sep 13, 2012 11:33 am
- Location: South of Houston 100 miles
Re: All it needs is a battery and maybe a carb clean
Even if the starter valve on #4 was broken wouldn't it still run at higher rpms?
Bikes at present:
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
83 GL in process
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