Originally Posted by Bloodweiser
What does an RD250 have in common with the rest of the heard?
Is it just top end differences? Same Carbs, etc??
rd has 6 speed tranny, reed/cylinder/head/pipe differences. r5 has cooler engine covers. they mix and match though. i would assume the rd cases have bigger transfer ports, but it's been a while since i looked at the 2 together. i always did rd250/350/400 - i had r5's and ds7 but never tinkered with them much.
someone correct me here - it's been awhile since i did an rd. rd has carbs with sync ports (slides have 'dots' in them) (or was it the other way around?) either way, if you hafta use stock carbs the black ones (right?) with the screws on the slide sides are the neatest.
the rd350 are the fastest overall . the rd250 feels faster since it spools up quicker, but it runs outta juice way early. the 400 is more torquey.