1987 kx80 cylinder swap question

[lt167camaro]

I bought my daughter a 1987 kx80 dirtbike. The jug is totally shot on the bike. Can you put a newer jug on the base of the 87. I know the newer bikes have 5 bolts on the head but I was wondering if you could use the jug and head of a newer bike on it. Thanks for any help. I was going to fix this older bike up as cheap as possible and see if she likes dirt bikes. If so I'll get her a newer one. Thanks for any help.

 

[Moparman1539]

I dont know if a ewer jug would work... But you can get repacement parts for it...

Everything you need you can find here
http://www.bikebandit.com/partsband...aki&model_dept_year=1987&model_dept_id=286997

But for a whole new head it wont be cheap... Setting you back about $500 for a whole new replacement head and piston kit... Maby more....

 

[lt167camaro]

I was hoping to find some used parts because I don't want to spend a lot of money on an old bike when you can buy a bike 10 years newer for sometimes under a 1000 bucks. I found a couple of jugs on **** that are newer than an 87. They came with the head also. A new jug for the 87 is just under 400.00. About half of what the bike is worth in running order. Know what I mean. I was told a newer jug would fit as long as I used a newer head and piston. As long as the base gasket is the same it will work. But I don't know if a newer bike has a different stroke than the older bike. Thanks for the help. Much appreciated.

 

[_JOE_]

http://www.eric-gorr.com/dirtbikeparts.html Cylinder and piston kit....$200.

 

[ghunter]

You can also shop that famous auction site for used heads and other parts for that '87 KX. I managed to score a set of forks, rear shock, radiator, and some other misc. parts for an '86 KX80 and spent less than $50 on all of them.

Of course, you never know what you will get from there so buyer beware.

 

[jason33]

go to ebyyy and check in the store as well as the regular listing-

also dennis kirk- has a catalog that tells the bore ,and stroke for a ton of bikes through wiseco piston kits- pick up a catalog for free!! lots of info in there--
and gooood prices!!---

 

[sixds]

is the cylinder just totally annihilated? you can get it replated by US chrome for probably not that much.