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cam timing help..82 1000 j
- bigkzfan
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- if grandpa had tits he"d be grandma, if
hello, i own a 1982 kz1000 j model with a 4into1 header and factory air box...
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- MFolks
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1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- kopcicle
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Clymers , Chiltons and Haynes just don't do this justice . The factory service manual despite being explicit assumes that the reader has basic mechanical skills and some motorcycle experience .
I'll try to fill in the blanks
The Gen III “J†engine uses basically two different types of camshafts . Gear driven tachometer and electronic . The early CSR for example used the mechanical tachometer drive making camshaft identification easier . A good portion of the rest however used the same cam and sprocket for intake and exhaust so identification isn't the problem assembly is .
Both camshafts are identical so now where to go ? The cam is marked left and right so that's easy enough . But how to assemble an intake and exhaust from two identical cams and gears ?
Take note of the left and right markings as if you were sitting on the bike and pick up one camshaft and see that there is a notch in the right end of the camshaft . Assemble the exhaust camshaft first . No particular reason but I had to pick one . If this is the mechanical tachometer drive you will have the cam with the obvious worm drive gear cut into it . Place one sprocket over the cam , notched end of the cam toward you .with lettering and identifying marks of the sprocket toward you you . You will be installing the bolts in the round countersinks so that the arrow marked exhaust lines up with the notch that is opposite with what will be #4 exhaust cam lobe .
Next is the intake cam . Place one sprocket over the cam , notched end of the cam toward you .with lettering and identifying marks of the sprocket toward you you . You will be installing the bolts in the square countersinks so that the arrow marked intake lines up with the notch that is opposite with what will be #4 intake cam lobe .
Installing the cams . Place the crankshaft on the timing mark for #1 & #4 . fish the cam chain out ot the case . You may have to rock the crankshaft back and forth to get all the chain up . Disable the camchain tensioner by removing the 17mm cover from the tensioner . Slip the chain over the camshaft and place the exhaust camshaft in the head . Take all the tension you can out of the chain and place it over the sprocket . The exhaust arrow will point at the front cam cover parting line and #4 exhaust lobe will be pointing rearwards . Verify that the crankshaft it still at top dead center #1 & #4 .
Install the intake cam. slip the chain over the camshaft and place the intake camshaft in the head . Take all the tension you can out of the chain and place it over the sprocket .
Now the fun begins . Because of the camchain slipper in the cover there has to be a specific amount of slack in the chain between the sprockets . Counting from the front parting line to the rear parting line it is 44 pins .
All these conditions must be met .
Crankshaft at top dead center #1 & #4.
Exhaust arrow pointed at the forward parting line.
Intake arrow pointed at the rearward parting line.
The notches in the right hand end of the camshafts must be pointed directly forward and rearward .
The cam lobes for #4 intake and exhaust must be pointed at each other .
There must be 44 pins counted between the forward parting line and the rear parting line.
And all this with the cam caps installed and torqued and the tensioner reassembled .
Take care installing the cam caps . These cap screws require only 7-9 ft/lbs of torque . Take them down a bit at a time . Installing Heilicoils in the holes occupied by the locating dowels is something you do not want to experience first hand .
You are now in a position to check the valve clearances of #1 cylinder .
~kop
you're welcome John it had to be done anyway
Mike , Mike , Mike . Don't you ever sleep ?
Thought I saw Larry and Steve here earlier also
Guess there's only so many places to hide
move , amend , mangle , clarify , shake or stir as needed
the grunt work is done .
~
"There are two major pressure changes in a four stroke internal combustion engine , when you light the fire and when the rods exit the block..."
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- MFolks
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Mike Folks
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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- bigkzfan
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hello, i own a 1982 kz1000 j model with a 4into1 header and factory air box...
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- bigkzfan
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hello, i own a 1982 kz1000 j model with a 4into1 header and factory air box...
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- John T
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would these instructions also apply to the 1984 GPZ1100 ?
sadly, I am without a manual but would love to get this engine together asap.
Thanks for any help..
-john
kopcicle wrote:
Ok I'll put it here also
Clymers , Chiltons and Haynes just don't do this justice . The factory service manual despite being explicit assumes that the reader has basic mechanical skills and some motorcycle experience .
I'll try to fill in the blanks
The Gen III “J†engine uses basically two different types of camshafts . Gear driven tachometer and electronic . The early CSR for example used the mechanical tachometer drive making camshaft identification easier . A good portion of the rest however used the same cam and sprocket for intake and exhaust so identification isn't the problem assembly is .
Both camshafts are identical so now where to go ? The cam is marked left and right so that's easy enough . But how to assemble an intake and exhaust from two identical cams and gears ?
Take note of the left and right markings as if you were sitting on the bike and pick up one camshaft and see that there is a notch in the right end of the camshaft . Assemble the exhaust camshaft first . No particular reason but I had to pick one . If this is the mechanical tachometer drive you will have the cam with the obvious worm drive gear cut into it . Place one sprocket over the cam , notched end of the cam toward you .with lettering and identifying marks of the sprocket toward you you . You will be installing the bolts in the round countersinks so that the arrow marked exhaust lines up with the notch that is opposite with what will be #4 exhaust cam lobe .
Next is the intake cam . Place one sprocket over the cam , notched end of the cam toward you .with lettering and identifying marks of the sprocket toward you you . You will be installing the bolts in the square countersinks so that the arrow marked intake lines up with the notch that is opposite with what will be #4 intake cam lobe .
Installing the cams . Place the crankshaft on the timing mark for #1 & #4 . fish the cam chain out ot the case . You may have to rock the crankshaft back and forth to get all the chain up . Disable the camchain tensioner by removing the 17mm cover from the tensioner . Slip the chain over the camshaft and place the exhaust camshaft in the head . Take all the tension you can out of the chain and place it over the sprocket . The exhaust arrow will point at the front cam cover parting line and #4 exhaust lobe will be pointing rearwards . Verify that the crankshaft it still at top dead center #1 & #4 .
Install the intake cam. slip the chain over the camshaft and place the intake camshaft in the head . Take all the tension you can out of the chain and place it over the sprocket .
Now the fun begins . Because of the camchain slipper in the cover there has to be a specific amount of slack in the chain between the sprockets . Counting from the front parting line to the rear parting line it is 44 pins .
All these conditions must be met .
Crankshaft at top dead center #1 & #4.
Exhaust arrow pointed at the forward parting line.
Intake arrow pointed at the rearward parting line.
The notches in the right hand end of the camshafts must be pointed directly forward and rearward .
The cam lobes for #4 intake and exhaust must be pointed at each other .
There must be 44 pins counted between the forward parting line and the rear parting line.
And all this with the cam caps installed and torqued and the tensioner reassembled .
Take care installing the cam caps . These cap screws require only 7-9 ft/lbs of torque . Take them down a bit at a time . Installing Heilicoils in the holes occupied by the locating dowels is something you do not want to experience first hand .
You are now in a position to check the valve clearances of #1 cylinder .
~kop
you're welcome John it had to be done anyway
Mike , Mike , Mike . Don't you ever sleep ?
Thought I saw Larry and Steve here earlier also
Guess there's only so many places to hide
move , amend , mangle , clarify , shake or stir as needed
the grunt work is done .
~
True Wisdom Only Comes From Pain.
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- kopcicle
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Yes .
Any problems or any resistance to rotation get in touch with Myself Larry or Steve for a start . I am sure there are others here .
Just know when to stop and be patient when needed .
~kop
"There are two major pressure changes in a four stroke internal combustion engine , when you light the fire and when the rods exit the block..."
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- Kitten Tooth
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Good luck man,
KT
1981 Kawasaki KZ1000-K LTD
1983 Suzuki GS300L-D
1982 Suzuki GS300L-Z sold:(
1976 KZ400D3
1973 Z900... I WISH
DO A BARREL ROLL!!
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