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Message started by jcharro on 02/27/13 at 21:23:17

Title: Head Gasket and Head Cap Install
Post by jcharro on 02/27/13 at 21:23:17

Hello Everyone,
Im taking on the awsome task of installing new head gasket and cap this weekend. My main question is; do I have to remove the motor from frame for the head gasket install? Or has anyone done it while motor sits in? Thanks in advance.

Title: Re: Head Gasket and Head Cap Install
Post by Dave on 02/28/13 at 05:05:32

Why are you replacing the head gasket?  The rubber plug is usually the only thing that needs replaced.

Title: Re: Head Gasket and Head Cap Install
Post by jcharro on 02/28/13 at 06:09:53

From the looks of it, there's a good amount of oil accumulation in the fins where the head gasket sits. So, you're telling me that oil accumulates there when ONLY the head cap needs replacement?

Title: Re: Head Gasket and Head Cap Install
Post by Dave on 02/28/13 at 06:49:09

I am not aware of anyone having a head gasket problem. You most likely will just need to do the plug.

Have you looked at the Tech Section and looked up this process in the Index?  It would help to see the process before you need to do it yourself.

I also recommed ypu get a small pastic syringe to put the sealer in...so you have better control over the applicaton.  You only need a thin strip of sealant on the head cap - there is no reason to have a large amount squeezing out and blocking the oil pasages.

Title: Re: Head Gasket and Head Cap Install
Post by verslagen1 on 02/28/13 at 08:09:37

Give everything a good cleaning and watch where the oil starts from.

Under the head, or on top.

sometimes, when the head is not retorqued (especially those 2 nuts on the underside) it can leak.

Title: Re: Head Gasket and Head Cap Install
Post by jcharro on 02/28/13 at 08:57:34

I appreciate you guys allot. I'll go ahead and give the motor a good cleaning and replace the Cap and O-ring only. After that tighten all loosen bolts and look to see if any more oil leaks or accumulates.

Title: Re: Head Gasket and Head Cap Install
Post by justin_o_guy2 on 02/28/13 at 09:25:13

Theres about the two hundredth head gasket job Ive seen that didnt need done,

I wonder how many of those things got replaced before this forum came along..

Title: Re: Head Gasket and Head Cap Install
Post by Boofer on 02/28/13 at 23:36:27

I forget what sealant Suzuki sells, but I used Yamabond on mine as suggested by my Suzuki shop. It works well where there is no gasket. But getting it in a syringe would be a real task. Just cut a small slant on the tube spout and roll it up from the end as you apply it. You have about 15 minutes to get it done, but it's no problem. I did mine in the bike, but I practiced rotating the head cap in on a couple of dry runs first.   :)

Title: Re: Head Gasket and Head Cap Install
Post by Dave on 03/01/13 at 06:25:35

I used the Suzukibond - and it worked great in a syringe.....guess I will have to take some photos.  I just pulled the plunger out of the back of the small plastic syringe, then squeezed the Suzukibond goo into the open syringe - then put the plunger back in.  The flow was far easier to control than it is from the tube.

Title: Re: Head Gasket and Head Cap Install
Post by mikey2004 on 03/03/13 at 11:08:30

i had the same problem with mine and i thought it was the head gasket. turned out that the head cap was the wrong size. but i can tell you that when the cap goes bad ALOT of oil comes out from the hole behind the exhaust pipe where it bolts into the motor. replace the cap i bet you will be good to go.

Title: Re: Head Gasket and Head Cap Install
Post by mikey2004 on 03/03/13 at 11:09:39

dave i never thought of that. GREAT idea. when i replace my clutch i will do that.

Title: Re: Head Gasket and Head Cap Install
Post by Dave on 03/04/13 at 05:24:25


7B7F7D736F24262622160 wrote:
dave i never thought of that. GREAT idea. when i replace my clutch i will do that.


There is no reason to use sealant on the clutch cover.  Get a new gasket from Suzuki.

Title: Re: Head Gasket and Head Cap Install
Post by jcharro on 03/04/13 at 07:48:44

Everything went just as planned fellas, Thanks for all your help.
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Title: Re: Head Gasket and Head Cap Install
Post by justin_o_guy2 on 03/04/13 at 08:42:58

Wheres the crushed up brillo pad stuff?

Title: Re: Head Gasket and Head Cap Install
Post by jcharro on 03/07/13 at 13:57:23

It's a no-brainer when you have a guide for all bolts and screws..

Title: Re: Head Gasket and Head Cap Install
Post by Oldfeller on 03/08/13 at 08:17:31


584741465B5C6D5D6D55474B00320 wrote:
Wheres the crushed up brillo pad stuff?


If it behaves normally, it stays scrunched up inside the recess in the cover half.   But you are right, it should be checked to make sure it is still there when you put the thing back together.

Title: Re: Head Gasket and Head Cap Install
Post by Rocket on 03/11/13 at 09:28:27

I just finished assembly of head gasket and cap last night.  I wish I'd passed on the head gasket as it is a lot more work than just doing the cap, and as I examined things once they were apart, it appears there was really nothing wrong with the head gasket and oil was leaking down from the area below the cap.  Ah well!

On another note, I worry (and will till I start the bike!) that I may not have the cam chain exactly aligned with the crank.   I did have the bike at TDC per the little "T" mark on the left flywheel (?) and the two marks on the cam parallel to the top of the head, but I worry that there is a little bit of subjectivity in whether the 'T' is perfectly aligned.  Thinking back I didn't try changing the chain on the cam gear one link to the left and one link to the right to see if I could make the alignment even better.  Any thoughts on this issue?  

Thanks ...Rocket  

Title: Re: Head Gasket and Head Cap Install
Post by verslagen1 on 03/11/13 at 10:17:51

With a brand new chain, and the TDC mark lined up, the cam marks will line up perfectly horizontal.

With a used chain, stretched a bit, the front side, which is straight, will be a little longer.  So the cam marks will be a little raised on that side.

I would try to get it to show slightly below then set it to the next tooth over for slightly above.

One tooth off and it won't run right, but not explode.  More than that can't tell you.  No ones ever admitted to more.   :o

Title: Re: Head Gasket and Head Cap Install
Post by Rocket on 03/11/13 at 10:50:23

Thanks.  I already buttoned it up, but if it won't run right, I'll know where to look.  If its off, its only one tooth so I won't blow it up!

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