CRF 250R 04 steel valves question !

[Ol'89r]

And in cold temperatures what could happend?
There is a reason i am asking and i want your opinions!
Thanks!

Unlike your family car, motorcycle engines, especially current models, have very small orifices that transmit the oil. Some of them as small as a pin. Oil with a higher viscosity does not flow through those orifices as quickly as a thinner viscosity will when the engine and the oil is cold. That is the reason for a multi-vis oil in the first place. Using an oil with too high of a viscosity rating can starve certain parts of your engine on start-up resulting in pre-mature wear. Like Joe said, in warm areas it may be ok, but, if you ride in colder areas it may be too high of a viscosity. It's best to adhere to the OEM's specs.

 

[whenfoxforks-ruled]

The desire to run thicker oil is just a "guy" thing, run what the book says. Vintage Bob

 

[_JOE_]

Guys like me who can really ride need thicker oil so we don't blow our motors..... :rotfl:

 

[Kolias89]

:) :) :) :) ;)

 

[2strokerfun]

Guys like me who can really ride need thicker oil so we don't blow our motors..... :rotfl:

Yup. I'm gonna install zerk fittings on my cases and pump them full of grease next time I change the oil. I'll be Super Fast !!