Cleaning out a new 2010 Grubee 66cc Skyhawk engine.

[saabengineer]

I just bought a Grubee Skyhawk 66/80cc engine and after reading through this forum for the past couple of days decided I should take apart major components and clean it. I am a motor with the necessary tools to do this, but cannot find any torque specs or instructions. Considering changing out hardware too with grade 8 bolts. Has anyone done this yet? I want to break this engine in the best way possible. I will be traveling about 10 miles to work and 10 miles back to save on fuel costs. Thank you everyone!

 

[Goat Herder]

Don't really have a bunch of suggested torque specs for you. One of the things I would do is check how tight things are with a torque wrench before loosing.

 

[Kevlarr]

If it ain't broke don't fix it.

 

[Mind_Reader7]

I just bought a Grubee Skyhawk 66/80cc engine and after reading through this forum for the past couple of days decided I should take apart major components and clean it. I am a motor with the necessary tools to do this, but cannot find any torque specs or instructions. Considering changing out hardware too with grade 8 bolts. Has anyone done this yet? I want to break this engine in the best way possible. I will be traveling about 10 miles to work and 10 miles back to save on fuel costs. Thank you everyone!

Wow, I didn't know the average motor could type!

 

[5446]

Ya I would match the ports clean up the flanges and maybe lap the head and jug. There lots of threads on this site for that. Hers a good place to start and by the way the HELP tab is your best friend here. http://motorbicycling.com/f13/bicycle-engine-basic-porting-16646.html

 

[Bikeguy Joe]

http://motorbicycling.com/f30/guide-bicycle-motor-preparation-care-354.html

Torque values are the norm for cast aluminum.

Grade 8 is total overkill, grade 5 is sufficient.