High pitched noise

[velardejose]

Hi
After the second tank of 90 oct + semi sinthetic oil I prepared a 98 oct + semi sinthetic oil mix
98 oct pump gas in my country has a strange smell, not exactly good old gasoline
Used it today going to work, and coming home the engine started a high piched noise, like something out of oil (or am I just paranoid?)
Barely audible with the engine running
Engine on and clutch pulled there is noise
Engine off and clutch pulled there is no noise
I asume it comes from the engine
Is it normal?
Is my engine dead? (hope not)
Thanks in advance

 

[misteright1_99]

Sometimes the clutch gear will rub on the case on the right hand side. Pull the cover off and look for metal shavings and put a dab of grease on the gear if it is dry. I also put grease in the hole that hold the clutch cable under the carb. Unscrew the fitting and put some grease in there, I used a neddle to get it in cause it is tight....Also really no need for high octane gas since these are low compression engines.