scooter heads, help

Specifications
HP @ Prop: 225
kW @ Prop: 165
Max RPM (WOT): 5000-5750
Cylinder/Configuration: V-6 (60 degree vee)
Displacement (CID/cc): 185.9/3032
Bore & Stroke (in): 3.63 x 3.00
Bore & Stroke (mm): 92 x 76
Cooling System: Water-cooled w/ thermostat & pressure controlled
Ignition System: PCM 038
Starting: Electric
Gear Ratio: 1.75:1
Gear Shift: F-N-R
Steering: Remote
Alternator Amp: 60 (belt-driven)
Alternator Watt: 756 (belt-driven)
Trim System: Power trim
Exhaust System: Through prop
Lubrication System: Electronic multipoint oil injection
Recommended Oil: Mercury OptiMax/DFI Engine Oil
Fuel Induction System: 2-stage direct fuel injection
Shaft Length (inches): 20/25/30
Shaft Length (mm): 508/635/762
Dry Weight (lbs.): 497
Dry Weight (kg.): 225
Operator Warning System: Overheat, low oil level
SmartCraft: Yes
CARB Star Rating: 2
Warranty: 3
Counter Rotation: Available
Digital Throttle and Shift: Available

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Was there a point to this post.

 

obviously 2 strokes are so efficient that they install them into every vehicle they can find. i used to have a little motorcycle in britain (can't use them here in australia too dangerous), used to have 2 strokes and found them thirsty.
i compared two hondas, same size etc - one 100cc 2 stroke the other 125 four stroke. the 4 stroke did some amazing distance on one gallon the 2 stroke was massively inefficient compared to the 4 stroke. i bought the 4 stroke. east german cars used to be two strokes. no engine fits all roles. i suppose its like the diesel versus petrol debate. diesels are more efficient (but in australia it is more expensive per litre) but there is some debate about what is coming out the exhaust - its said that it could be linked to asthma and a clogging of the lungs by soot. the indians love diesel have a look at their cities and the air quality.

 

That depends on the tune of the engine a full blown motorcross engine even with just 125 cc can suck some gas the same engine tune for less rpm and more torque plus a tall gearing is far more efficent fuel wise.

 

http://www.smalloutboards.com/4Stroke.htm

http://www.deepscience.com/articles/engines.html
http://ezinearticles.com/?Two-Stroke-Vs-Four-Stroke-Engines-in-Scooters&id=84092
http://www.motorcycle.com/mo/mchonda/exp2_tech.html this article talks about a new type of two stroke that promises to be alot more efficient. from what i gather the two stroke engine here uses a diesel engine approach and uses the chamber pressure to ignite the fuel air mixture.
( i remember someone i knew accidently putting diesel in his motorcycle instead of petrol - he couldn't switch the thing off! had to stall it.)

 

IF you look up the Evinrude E-Tec outboard engines, they are more efficient that similarly powered 4 strokes.

 

point to me to exact page
i'm lazy

 

http://www.evinrude.com/en-US/Campaigns/

Its the links on the left side, the acceleration, weight etc.

 

been through the site
everything sounds great. maybe 2 strokes are the next big thing. but the evinrude is a drastically redesigned take on the two stroke engine as is the
http://www.motorcycle.com/mo/mchonda/exp2_tech.html 2 stroke engine. the way the fuel air mixture comes in and how the mixture is ignited is completely different to most two strokes currently being used.
for me to change my mind i need to see some scientific testing that conclusively proves that the best 2 stroke defeats the best 4 stroke in efficiency etc. the tests on the evinrude site only give one comparison.
my idea for making a 2 stroke more economical would be for the fuel air mix to enter from the top of the chamber and exhaust gases to vent out at the bottom from multiple ports. as it stands at the moment 2 strokes still don't have it. my reasoning? racing cars like formula 1 or nascar don't use them nor do modern fuel efficient road cars. i've seen one site quoting suzuki creating a 2 stroke car project that has an efficiency of 100mpg but it went no further. not so long ago it was mooted that steam engines were making a comeback. i'd no problem driving a 2 stroke car as long as it was as efficient or more efficient than a 4 stroke. for you average joe your average 2 stroke is still less efficient than your average 4 stroke.

 

I looked at that site, and it sounds like a diesel engine. I know a few months back, I was reading about how a diesel engine runs really well on 2 strokes, but I can't remember why they made them as 4 strokes in most cars.