M1NSK ERX 250

[alex_ander]

unlucky Alex
my motorbike is my only form of transport, if i forgot my keys i would definitely say сука excuse my language.
i do like the very cafe racer style of your bike is your helemt a sportsbike style or retro looking one to match the bike?

Kennon

My moto equipping are totally corespond with motostyle.
I putted some photos above in topic.
Kennon could you please help me clerify what are the rubber elements into the cylinder.
See them on added photo...
cylinder.jpg

[alex_ander]

Horosho Alexander looks very good cant wait to hear a ride report about your bike

Kennon

The engine sounded very good )))
Sounded very silent. trrrrrrrrrrrrrrrrtrrrrrrrrrrrrrrrrrrrrrrtrrrrrrrrr rrrr... ))))
I go to ride it again...

[Kennon]

Alex
i would say the top rubber circle is to stop dirt getting to the OHC
the other ones i would remove as they were likely just for production and storage use to

Kennon

[MJH]

They are for dampening wavelengths the longer the fins the increased amplification of the wavelength, consider a tuning fork, the vibration that carry into the air fins are dampened by these hard rubber wedges. The other Suzuki singles also have those, they reduce conduction of vibrations.

this is a ST250 Tracker, same engine but it is EFI.

[Zorge]

Correctly. For other types of engines can be more rubber. For example, this is the motor MZ ETZ. Even my little Tomos has two rubber inserts between the cylinder and cylinder head.


ETZ250motor1.jpg

Or, function No.2 - indicator of engine condition: if you feel the smell burning rubber, that means that you just melt the engine.

[MJH]

Found this, it a Suzuki Thunder 250 that was once offered in Indonesia.

[MJH]

Also called a GSX250

[MJH]

Wonjan kind of jacked it up, could say fecked it up, into dual sport.

[alex_ander]

They are for dampening wavelengths the longer the fins the increased amplification of the wavelength, consider a tuning fork, the vibration that carry into the air fins are dampened by these hard rubber wedges. The other Suzuki singles also have those, they reduce conduction of vibrations.

this is a ST250 Tracker, same engine but it is EFI.

Ok.
I was thinking the same. Against vibration. But I wasn't sure. I thought that if this rubber will have smell I remove it. But now I'm calm. Will it be.
Thanks

[alex_ander]

Or, function No.2 - indicator of engine condition: if you feel the smell burning rubber, that means that you just melt the engine.

Ya! When I first time started the engine the tachometer indicated 4.500 RPM )))
Through the 5 minutes I felt smells )))
Then engine had stoped. After that I has adjusted the carburetor till 1.500 RPM.
Now everythink is ok. No hot, no smells.