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Old 09-18-2012, 05:08 PM   #33 (permalink)
Master EcoModder
Join Date: Feb 2009
Location: France - Paris
Posts: 762

la_voiture_de_courses - '03 Renault Megane Estate
90 day: 44.34 mpg (US)

xiao lan - '01 Audi A2
90 day: 38.88 mpg (US)

Brit iron - '92 Mini Mini
90 day: 45.5 mpg (US)

Prius - '09 Toyota PRIUS Lounge
90 day: 47.37 mpg (US)

Beemer - '06 BMW F800 ST
90 day: 53.06 mpg (US)
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The bike has been on hold for 2 weeks due to funky engine noises when hot and erratic power drops.
I am guessing either :
- head gasket (there is an oil leak) + chain tensionner guide
- shot clutch (was reportedly worn but stopped slipping as soon as I changed the oil) and crap in carb and tank

My only issue is I have no room to open up the engine.

Anyway, there is opportunities even in drawbacks so the plan is to ugrade the engine as far as FE is concerned

I am thinking :
polished combustion chamber
polished exhaust ports
higher CR (from 8,9 to 10 maybe)
flowed carb (if needed)

Keep in mind the GN is air cooled with no oil cooler.

Any advice on the spec ?
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