Engine temperature? 125cc 4 stroke CG125

[alol74]

Anyone knows what is the ok temperature for CG125 ? I've put 5W40 full synthetic oil in and I kinda think that the engine is now getting quite hot, as in hotter than before ? Any hints ?

[JimiB]

thats the same as what i put in my cg125 4 stroke copy... Around 2 months ago .. Alls running smooth.

[Bill_on_a_bike]

how can you tell the temperature does it have a gauge? air cooled engines arn't designed to run standing still idealy, they need the air flow through fins to keep them cool.

[alol74]

how can you tell the temperature does it have a gauge? air cooled engines arn't designed to run standing still idealy, they need the air flow through fins to keep them cool.

it doesn't and thats why i think it is too hot

[Bill_on_a_bike]

So how do you know it's too hot?

[Fozzie]

I wouldnt have put 5w40 in tbh... 10w 40 sounds more suited for a Honda CG125 as 5 just sounds too thin

[eastanglianbiker]

10/40 sounds right to me as well and semi syn not fully as its not a performance engine

[Jixerman]

Thinners oils are designed for use at colder temperatures as oils tend to thicken up when the temperatures drop

10W40 in my gixer as recommended in the workshop manual I downloaded from tinternet

Same in the GSX and same in the car

You may fnd this useful

http://hondacg125.awardspace.com/oil.htm

Scroll down to the oil section