Installing the head on a Spree
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Installing the head on a Spree
Hello,
I just finished installing a big bore kit on my 1985 Honda Spree (for the third time) and am not sure if I am putting the head on correctly. There is one side that is flush with the cylinder and another side of the head that extends beyond the cylinder. I think that the longer part (that extends farther) goes towards the carb. If I am putting it on backwards, please let me know. This may explain why I can never get the thing to work very long. Thanks.
I just finished installing a big bore kit on my 1985 Honda Spree (for the third time) and am not sure if I am putting the head on correctly. There is one side that is flush with the cylinder and another side of the head that extends beyond the cylinder. I think that the longer part (that extends farther) goes towards the carb. If I am putting it on backwards, please let me know. This may explain why I can never get the thing to work very long. Thanks.
- mustangwagz
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Re: Installing the head on a Spree
you have the head bored also?
-Zac 
1981 HD-Ironhead Sporty. 1000cc, 4 speed, drag pipes, and drag bars.. (chic/cop magnet)
72 Rupp Roadster 2 (aka. RUMP ROASTER!!)
05 vinson
78 bronco (Log skiddin Hog!!)

1981 HD-Ironhead Sporty. 1000cc, 4 speed, drag pipes, and drag bars.. (chic/cop magnet)
72 Rupp Roadster 2 (aka. RUMP ROASTER!!)
05 vinson
78 bronco (Log skiddin Hog!!)
Re: Installing the head on a Spree
Just
. They explain it with pictures for crying out loud. Your guess is wrong too.

Bear 45/70

'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree

'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
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Re: Installing the head on a Spree
The Honda manual Section 6-3 has a photo, but might as well post one... sooner or later I will remember it by "the tab goes on the back right hand side", or "the angled fins go on the fan side".
BTW - Thanks Bradthree for the parts!
BTW - Thanks Bradthree for the parts!

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Re: Installing the head on a Spree
I am pretty sure that the head is also bored. The first time I ordered the big bore kit it came with a letter saying that the head had to be "milled" (whatever that means). I took it to a garage and one of the mechanics said that he had the machines at home to do it. The next day he brought it back and with a slightly bigger circle. It is ashame that the guy selling these kits on ebay does not explain this until you receive the kit. Also, I looked at the manual for my scooter but could not make out the pictures. The scanned version that I have kinda blurred. Thanks.
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Re: Installing the head on a Spree
mousewheels
Thanks a lot for the picture. It answered my question.
Thanks a lot for the picture. It answered my question.
Re: Installing the head on a Spree
did you get the 44mm or the 48mm those head bolts also need to be tourqed down to the right setting
Re: Installing the head on a Spree
Just goes to show you can't idiot proof everythingAnimal Chin wrote:I am pretty sure that the head is also bored. The first time I ordered the big bore kit it came with a letter saying that the head had to be "milled" (whatever that means). I took it to a garage and one of the mechanics said that he had the machines at home to do it. The next day he brought it back and with a slightly bigger circle. It is ashame that the guy selling these kits on ebay does not explain this until you receive the kit. Also, I looked at the manual for my scooter but could not make out the pictures. The scanned version that I have kinda blurred. Thanks.

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- Gingerbread Man
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Re: Installing the head on a Spree
Yes in the manual 6-3 shows the head like this but, 6-0 has it the other way.mousewheels wrote:The Honda manual Section 6-3 has a photo, but might as well post one... sooner or later I will remember it by "the tab goes on the back right hand side", or "the angled fins go on the fan side".
BTW - Thanks Bradthree for the parts!
http://www.apachemotorcycles.com/fiche_ ... &fveh=3554
2007 CH80
Re: Installing the head on a Spree
6.0 is a drawing and never trust a drawing, mainly because an artist drew it. 6.3 is a real picture of an engine, believe it. And again the IPB (Illustrated Parts Breakdown) is a DRAWING, a good one even but it is a drawing, don't trust drawings for assembly purposes.Gingerbread Man wrote:Yes in the manual 6-3 shows the head like this but, 6-0 has it the other way.mousewheels wrote:The Honda manual Section 6-3 has a photo, but might as well post one... sooner or later I will remember it by "the tab goes on the back right hand side", or "the angled fins go on the fan side".
BTW - Thanks Bradthree for the parts!
http://www.apachemotorcycles.com/fiche_ ... &fveh=3554
Bear 45/70

'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree

'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
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Re: Installing the head on a Spree
No problem mouse, glad they are being helpful to the forum community.mousewheels wrote:The Honda manual Section 6-3 has a photo, but might as well post one... sooner or later I will remember it by "the tab goes on the back right hand side", or "the angled fins go on the fan side".
BTW - Thanks Bradthree for the parts!
I'll get another box of goodies out to you when I go thru all my parts in the shed. Its just been too hot lately

- mustangwagz
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Re: Installing the head on a Spree
yah..ditto that.. i deal with drawings/blue prints everyday.. they're wrong all day, everyday. lolBear45-70 wrote:6.0 is a drawing and never trust a drawing, mainly because an artist drew it. 6.3 is a real picture of an engine, believe it. And again the IPB (Illustrated Parts Breakdown) is a DRAWING, a good one even but it is a drawing, don't trust drawings for assembly purposes.Gingerbread Man wrote:Yes in the manual 6-3 shows the head like this but, 6-0 has it the other way.mousewheels wrote:The Honda manual Section 6-3 has a photo, but might as well post one... sooner or later I will remember it by "the tab goes on the back right hand side", or "the angled fins go on the fan side".
BTW - Thanks Bradthree for the parts!
http://www.apachemotorcycles.com/fiche_ ... &fveh=3554
-Zac 
1981 HD-Ironhead Sporty. 1000cc, 4 speed, drag pipes, and drag bars.. (chic/cop magnet)
72 Rupp Roadster 2 (aka. RUMP ROASTER!!)
05 vinson
78 bronco (Log skiddin Hog!!)

1981 HD-Ironhead Sporty. 1000cc, 4 speed, drag pipes, and drag bars.. (chic/cop magnet)
72 Rupp Roadster 2 (aka. RUMP ROASTER!!)
05 vinson
78 bronco (Log skiddin Hog!!)
Re: Installing the head on a Spree
I must admit that I fell victim to the artist's drawing for the head as well. I had it on backwards for 3 tanks of gas and had no issues. When I saw this thread the other day, I knew I had made a mistake. Took it all apart today and put the head on correctly. Was nice to see how clean and great everything in the cylinder/head still looked after 3 tanks of gas. My plug was perfect chocolate brown too 
Moral of the story - it will run with it on wrong, but I dont know if it would cause long-term damage due to the possibility of it not cooling correctly with the fins in the wrong position. Can anyone confirm?
Thanks
Greg

Moral of the story - it will run with it on wrong, but I dont know if it would cause long-term damage due to the possibility of it not cooling correctly with the fins in the wrong position. Can anyone confirm?
Thanks
Greg
1986 Spree w/Taz 44mm BBK
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Re: Installing the head on a Spree
Animal Chin wrote:Hello,
I just finished installing a big bore kit on my 1985 Honda Spree (for the third time) and am not sure if I am putting the head on correctly. There is one side that is flush with the cylinder and another side of the head that extends beyond the cylinder. I think that the longer part (that extends farther) goes towards the carb. If I am putting it on backwards, please let me know. This may explain why I can never get the thing to work very long. Thanks.
mousewheels wrote:The Honda manual Section 6-3 has a photo, but might as well post one... sooner or later I will remember it by "the tab goes on the back right hand side", or "the angled fins go on the fan side".
BTW - Thanks Bradthree for the parts!





MY cooling plastics don't really fit the other way around.
I have been running my spree heads the wrong way for over a year now.

new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
- Gingerbread Man
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Re: Installing the head on a Spree
Bear is absolutely right. I asked my instructors at school today and they said go with the picture of the assembled bike. Not the drawing. I was also installing them backwards on my Spree w/out a problem though. I fixed mine today.
2007 CH80