There are other reasons too. Power to weight mostly, or power to cost anyway. It's only recently that we've been able to make a 4 stroke diesel that even comes close to a good gas motor (especially motorcycle engines) in terms of power to weight. My 450 motor weights 80-90lbs (I've had it out) and puts out around 40hp. To get 40hp out of a naturally aspirated jerk pump diesel it would probably need to be closer to 1000cc and would still weigh 150-200lbs. Higher outputs are mostly the result of electronically controlled injection and turbo- chargers, both not so cheap items. Not impossible, just not marketable.
I'm not sure how they handle the torque and rpm differences. Probably right and they just gear it down a bit. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
