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54warrior
07-24-2010, 02:48 PM
Can anyone tell me what I've got here? What year is this off of?

measures something like 123.7mm or 4.870" tall
54warrior
07-24-2010, 02:49 PM
2
54warrior
07-24-2010, 02:50 PM
3
methyman
07-24-2010, 02:52 PM
It is bridged intake so it a 87-89 cylinder, year is stamped in the sleeve at the bottom in two digit.
Example: 88
atv fan 28
07-24-2010, 03:10 PM
Here is some good info.

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Ruf Racing
07-24-2010, 04:04 PM
Got to love youtube!
54warrior
07-25-2010, 08:10 AM
Thanks for the info/links people!

That guy on youtube has some good info.

Basically, after some checking, this was originally an 86 bottom end, which had been fitted with a Hetrick Powervalve topend.

After some measuring, it was using the 5mm spacer plate, an 86 piston, and the 5mm longer 87-89 rod.

So the plan is to sell the powervalve, order a new 'late' crank, an 86 piston, and use the spacer plate, along with a ProDesign Cool Head.
methyman
07-25-2010, 08:21 AM
I don't see a power valve top end!
54warrior
07-25-2010, 08:43 AM
Originally posted by methyman
I don't see a power valve top end!

PV cylinder is being sold soon. What is pictured is the cylinder that will be used.
honda350r
07-25-2010, 07:29 PM
The guy on youtube video said the cylinder on the left is a 85 and it is a 86 the only difference is, the 85 cylinder does not have a web attaching the reed valve to the water spigot on the rear of the cylinder .

Not a big deal but if you are talking about correct cylinders the info should be correct !
rustyATV
07-30-2010, 07:51 PM
Originally posted by honda350r
The guy on youtube video said the cylinder on the left is a 85 and it is a 86 the only difference is, the 85 cylinder does not have a web attaching the reed valve to the water spigot on the rear of the cylinder .

Not a big deal but if you are talking about correct cylinders the info should be correct !

The 85 cylinder is also black! :D