200s Burning Oil

[peteyb05]

I have a 1984 Honda 200s trike. The machine starts on the first pull cold, has plenty of power, and works great for everything I need. Unfortunately it burns a lot of oil. You can always see the blue smoke trail behind it and even idling blue smoke comes out of the muffler. Is there any way to fix this aside from replacing the piston rings? I am fairly handy and can rebuild carbs etc but have never done an engine rebuild; and with how great it runs I would hate to mess it up. Is their a tutorial anywhere on how to do this? I have a book/repair manual that gives a pretty good idea on how to do it, but just looking for first hand experience.

Thanks,
Pete

[rdlsz24]

New rings and a cylinder hone will probably stop the blue smoke. If you can follow a manual you can rebuild a top end, imo.

Rob

[topless]

The top end on these motors is just easy. While you have the head off, spend the $15 and get a valve job and replace the valve seals. They come in the gasket set anyway.

[threewheelin-feelin]

a valve job you can do yourself...go get you a valve grinding kit and changing the seals is a piece of cake with a spring compressor...make friends with some one with alot of tools if you dont own them lmao

[tecat-z]

Make sure valves are tight in guides. Many people assume that a valve job consists of just cutting seats and lapping valves. The valve stem wears, and so does the guide. When they get loose the valve actually wiggles in the stem and will allow oil past the seal and into combustion chamber. It will also create top end noise in extreme cases. The head has to be done correctly. Get the smallest oversize piston that will allow cleanup and have a true professional cut and finish hone to correct tolerance. Upper cam sprocket, chain, and careful assembly, and it will run like new again.

[peteyb05]

So to do this I'm looking to buy a new piston, rings, and gasket kit?

[tecat-z]

All wear items to do the top correctly. Or......... just deal with it if it still runs acceptable to you.

[Tri-Z Pilot]

i would do the top end myself, it's easier than you think. first get to the piston thats in now and look at the top of it or the sides perhaps. should have the piston size stamped into it, order the next size up piston kit which should consist of piston and rings, wrist pin and bearing, and possibly gaskets depends on the kit.

take your new piston and rings along with your cylinder to a reputable shop to be bored and honed. i also recommend you get new seals and a valve job for the head along with a timing chain if needed.
might as well do all this while its apart now as theres a good chance that everything has been untouched since new, and the machine may not have had proper care over the years.
the manual is one of the best tools there is, and the only way to really learn is to get your hands dirty, so good luck and ask as many questions as you need to.

[oscarmayer]

he's probably looking at about $200-$250 for the compl;ete top end rebuild with machining work.
piston set $45-$125 depending on make and type. i liek the wesico 10.25:1 comp pistons. if your going to rebuild it, why not get a little more punch?

the $125 kit should come with a top end rebuild gasket set to include the valve seals and headgasket.

then maching on the boreing and honing is like $60 and valve job is like $45-$65

so then you assembly it yourself wien you get it back and save.