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Guest Message by DevFuse
 

Photo
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ea81 dual port preview


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16 replies to this topic

#1 cubastreet

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Posted 22 June 2014 - 12:58 AM


IMG_20140622_174302_zpspsavafoh.jpg
IMG_20140622_174341_zpsdavkubsj.jpg
IMG_20140622_174227_zpsyezkjvlg.jpg
IMG_20140622_173738_zps8y2c8dmr.jpg

#2 BratRod

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Posted 22 June 2014 - 01:07 AM

Very nice! 

 

Reminds me of these http://www.flygas.info/en/index.html

 

What are you building these for? 



#3 Crazyeights

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Posted 22 June 2014 - 01:34 AM

Looks great!

 

More details please :slobber:



#4 cubastreet

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Posted 22 June 2014 - 01:57 PM

It's for my 81 Brumby, I'll add more as it progresses

#5 Crazyeights

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Posted 23 June 2014 - 12:30 AM

MPFI EA81?  I have been gathering parts for a similar "EA81T" build. I have two blocks going together now.



#6 cubastreet

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Posted 23 June 2014 - 02:32 AM

Bike carbs.
I got the second head welded up today and made a start on the manifold.
I'll need to relocate the battery but other than that it should all fit in nicely.

Edited by cubastreet, 23 June 2014 - 01:54 PM.


#7 1000 Pistes

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Posted 27 June 2014 - 10:48 AM

hello,

You beleave that these modifification could be done on the EA 71,EA 61 and EA 63 heads,too?

You are thinking to weld,on the heads, alloy tubes?

The angle of the welded alloy tubes it is important for the easy change of the spark plugs


Edited by 1000 Pistes, 27 June 2014 - 10:51 AM.


#8 Willy Fisterbottom

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Posted 27 June 2014 - 03:51 PM

hello,
You beleave that these modifification could be done on the EA 71,EA 61 and EA 63 heads,too?
You are thinking to weld,on the heads, alloy tubes?
The angle of the welded alloy tubes it is important for the easy change of the spark plugs


This won't work on EA61 or EA63 as the inlet and exhaut valves are around the other way.

#9 el_freddo

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Posted 27 June 2014 - 07:46 PM

I think it's time for more pics!

Cheers


Bennie



#10 Pooparu

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Posted 29 June 2014 - 10:42 PM

I've got these for my EA81:

 

IMG_20130306_074225-1-1.jpg


 


IMG_20130306_074320-1.jpg


 


IMG_20130306_074342-1.jpg


 


IMG_20130306_074407-1.jpg


 


IMG_20130306_074427-1.jpg



#11 el_freddo

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Posted 29 June 2014 - 11:14 PM

^ The "elusive" dual port EA81s heads - you need a matching cam to run with these heads!

Cheers

Bennie



#12 Willy Fisterbottom

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Posted 29 June 2014 - 11:30 PM

^ The "elusive" dual port EA81s heads - you need a matching cam to run with these heads!

Cheers

Bennie


looks like he has a cam to match......

#13 el_freddo

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Posted 30 June 2014 - 12:05 AM

looks like he has a cam to match......

 

Yep, but thought it worth while for the "sake" of others - they're not just a simple bolt on upgrade ;)

 

Cheers

 

Bennie



#14 jono

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Posted 01 July 2014 - 05:55 PM

Gee willikers , look at how much been shaved off the head !



#15 Crazyeights

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Posted 01 July 2014 - 11:30 PM

Not much base circle left on the cam lobe either. Nice stuff though, rare indeed!



#16 cubastreet

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Posted 02 July 2014 - 08:35 PM

IMG_20140703_102325_1_zpsxfl5pmiw.jpgIMG_20140703_102249_1_zpsspq4g74j.jpg

#17 Willy Fisterbottom

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Posted 02 July 2014 - 09:24 PM

Yep, but thought it worth while for the "sake" of others - they're not just a simple bolt on upgrade ;)

 

Cheers

 

Bennie

Pushrods are also a different length.






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