Toying with Idea of CR500 swap

[250rmanfmf]

I am toying with the idea of a cr500 swap into my 85 250r eventually. Besides the kickstarter snaffu what else needs to be modded to fit this motor? I know new motor mounts. Any frame mods? Also any ways to strengthen the R frame? I know a couple of guys that have busted there frames either on the backbones or the part in front of the motor. I have a pretty modded 250r as it is (310cc, msd, 41mm carb) But thinking of building this bike for just racing.

Any info would be great
Thanks
Tyler

[Tbcoplin]

Weld some 3/16" plate steel on the bottom to tie the tubular frame together. This will prevent it from cracking. Beefs it up. The skid plate covers it up very nicely.

[SYKO]

Have billy Modd your frame for the 5hundy, look at my sig build and peep it.

[Bigbore]

Billy's frame mods, The only way I'd go!!!!!!!!!!!!!

As soon as I can chase down an '86 frame, thats what I'm planning on.

[AutoXer]

leave your 250 and get another frame for the 500r racer if you have the space and funds?