piston lubrication holes

[thejackrabbit]

should my 200 have holes drilled in the piston for exhaust lubrication? It doesn't have any as of now

I'm guessing not because there is no exhaust bridge, but I could be wrong.

 

[gasgasman]

No bridge, no holes.

 

[thejackrabbit]

so definitely no gas gas bike should have holes in the piston on the exhaust side?

 

[(F5)]

The Wiseco original piston I took out of my '02 200 had no holes (& virtually no wear) & the Wiseco I put in, the same.
Centre bridges are much harder than triple ports.

 

[gasgasman]

so definitely no gas gas bike should have holes in the piston on the exhaust side?

Correct. You would loose "crankcase compression" when the piston travels down- most of it will blow out the holes in the piston.

 

[Jakobi]

85hrs on a 250 that gets revved.

 

[thejackrabbit]

okay thanks for the info, I figured I should make sure while my bike was apart so I won't end up with a melted piston

 

[waycrazy]

And here I thought my piston was wasted... Lubrication holes?

Sorry I have to make lots of jokes at my misfortune or I will go nuts.

 

[thejackrabbit]

any ideas on how that happened?

 

[Jakobi]

Good question. Its on the intake side. How do the reeds look?

 

[waycrazy]

Good question. Its on the intake side. How do the reeds look?

You answered his question..... I pulled a rookie move . When I put it together I got in a hurry and installed the stupid thing in backwards. I feel like a moron. I didn't even think to look until I saw the piston you posted next to my piston pic.And to add to the frustration I know better!
Very expensive lesson in paying attention . Cost me a cyl, piston and bottom end kit . Basically I roached a engine because I got in a hurry.

 

[Jakobi]

Ouch.. Guessing the ring end gap snagged the exhaust port and hey presto! Instabits.. I feel for you man. Better go have a rum for ya!~

 

[(F5)]

. . . I got in a hurry and installed the stupid thing in backwards. I feel like a moron. . . .

Ha, don't worry, that feeling passes.


......I 'Might' have done the same thing 20 years ago on a small commuter bike

 

[waycrazy]

Thanks guys, it was very embarrassing to admit that. After this frustration I think I need to catch a plane and drink a few of those rums with you! After a good ride of coarse.

I dont think this feeling is going to pass until my bank account is back were it needs to be. LOL