 | How To Tear Down The Head Posted in Motor Tutorials  | | 
23-12-2008, 07:52 PM
|  | Senior Member | | Join Date: Jul 2005 Location: Newcastle
Posts: 1,608
| | | How To Tear Down The Head
What you will need :
Allen Keys
8mm Spanner
9mm Socket
10mm Socket
Phillips Head Screwdriver
Your bike.
Some Rags.
Bolt types will vary from bike to bike.
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1. Remove the 3x bolts holding the front fender on with a 8mm Spanner. 
2. Remove the oil cooler with a allen key. 
3. Remove all plastics and seat bolts with a phillips head screw driver.  
Continues below.
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Nissan Pulsar N14 Turbo
Honda CBR250RR
Motovert RX125
Suzuki DS80
Last edited by Dabomb; 23-12-2008 at 08:08 PM.
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23-12-2008, 07:53 PM
| | Senior Member | | Join Date: Jul 2005 Location: Newcastle
Posts: 1,608
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4. Remove rear mount for exhaust with an allen key. 
5. Remove the 2x 10mm nuts from the head with a 10mm spanner.
now remove the exhaust. 
6. Remove the bash plate mounts on either side of the cylinder ( only if you wish to remove the cylinder too) 
7. Remove the 2x 10mm bolts holding the manifold and carburetor onto the cylinder head. 
Continues below.
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Nissan Pulsar N14 Turbo
Honda CBR250RR
Motovert RX125
Suzuki DS80
Last edited by Dabomb; 23-12-2008 at 08:04 PM.
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23-12-2008, 07:54 PM
| | Senior Member | | Join Date: Jul 2005 Location: Newcastle
Posts: 1,608
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8. Remove the 4x head stud bolts evenly by loosening off the bolts in a diagonal manner. (top left->bottom right->bottom left->top right). 
9. Remove the main cam bolt with a 10mm socket. (Caution the cam sprocket will have nothing but a gasket holding it on, remove the cover.) 
10. With the cam sprocket cover off, remove the the head to cylinder mounting bolt with a 10mm spanner. 
11. Remove the 3x cam sprocket bolts to remove the cam sprocket.
Have the engine in gear and 'crack' the bolt with a 9mm socket.
Remove the cam sprocket and let the cam chain sit in the head. 
Continues below.
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Nissan Pulsar N14 Turbo
Honda CBR250RR
Motovert RX125
Suzuki DS80
|
23-12-2008, 07:55 PM
| | Senior Member | | Join Date: Jul 2005 Location: Newcastle
Posts: 1,608
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12. The head is now ready to come off, a knocking hammer or a wooden handle of a hammer can be used to free the gasket from the head and cylinder surface. Once this is done slide the head up the head studs. 
There maybe oil still in then head and it may leak, keep a rag handy.
Your done!
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Nissan Pulsar N14 Turbo
Honda CBR250RR
Motovert RX125
Suzuki DS80
Last edited by Dabomb; 23-12-2008 at 08:08 PM.
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23-12-2008, 08:06 PM
|  | Senior Member | | Join Date: Jul 2008 Location: Seville, Vic
Posts: 439
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good tutorial, never atempted to take the head off my bike because i never really knew how, might have to go try it over the holidays, thanks for the tutorial
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23-12-2008, 09:00 PM
|  | Moderator | | Join Date: Oct 2007 Location: Brisbane, QLd Australia
Posts: 2,324
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that is a real asset to this site, should be sticky well done.
Five stars
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23-12-2008, 09:09 PM
|  | Master Spanner Spinner | | Join Date: Aug 2007 Location: brisvegas
Posts: 3,611
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nice. should help out alot of people ,
and make people realize these engines Are Not Rocket Science!
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23-12-2008, 09:14 PM
|  | Senior Member | | Join Date: Apr 2005 Location: sydney, australia
Posts: 3,073
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well done dabomb, im glad there are still people out there taking the time to make a tutorial
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23-12-2008, 09:43 PM
| | Senior Member | | Join Date: Jul 2005 Location: Newcastle
Posts: 1,608
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thanks for the praise guys!
will wright up the next one 'How to tear down the cylinder' soon
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Nissan Pulsar N14 Turbo
Honda CBR250RR
Motovert RX125
Suzuki DS80
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23-12-2008, 10:07 PM
|  | Super Moderator | | Join Date: Feb 2007
Posts: 2,852
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Stucked!!  Good work
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How To Tear Down The Head
