1978 Honda cylinder and head work on 1985 Honda Gyro?

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bob5731
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1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by bob5731 » Sun Feb 17, 2013 4:33 pm

will a 1978 Honda cylinder and head work on 1985 Honda Gyro?

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martynkim
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Re: 1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by martynkim » Sun Feb 17, 2013 11:29 pm

Short answer no. But if you want to try, I will sell you one for half that price.
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Re: 1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by mousewheels » Sun Feb 17, 2013 11:34 pm

I've looked, but have yet to check one out in person. From afar, it does not look to be a bolt-on.

---
Bore x stroke is different on the Express
IRC Moped guys found bolt spacing differs from the Express VS AF05/AF16, thus they were kept from fitting AF05 or AF16 kits onto the Express. Not a big deal for the Express, there are kits which do fit...

Cooling fins are larger and rotated 90 degrees --- cooling air on the Express is head onto the cyl head, with the cyl un-shrouded.


Pic showing diffs between Gyro and other cyls in it's era:
Image


Honda Express cyl from the link in this thread
Honda_Express_Cyl.jpg
Honda_Express_Cyl.jpg (76.63 KiB) Viewed 891 times

bob5731
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Re: 1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by bob5731 » Tue Feb 19, 2013 1:26 am

So what other cylinder can I use besides a Gyro?

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wiguy05
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Re: 1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by wiguy05 » Tue Feb 19, 2013 11:36 am

What's wrong with your current cylinder? Could you have it honed? Or worst case bored over with a bigger piston?
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bob5731
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Re: 1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by bob5731 » Tue Feb 19, 2013 4:39 pm

I got the bike without a cylinder and a head.
Last edited by bob5731 on Sat Feb 23, 2013 8:10 am, edited 1 time in total.

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Re: 1978 Honda cylinder and head work on 1985 Honda Gyro?

Post by bob5731 » Fri Feb 22, 2013 7:16 pm

I got the bike without a cylinder and a head.

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