I will have a look to see what I have got in my shed , if I get a chance. Those clutch baskets always wear out the small gear on the back, if the needle roller bearing for the kickstart idler gear isn't changed regularly. I used a TE510 clutch basket in my CR500, as it has the same size small gear on the back of the basket . The TE510 basket has more teeth on the ring-gear though, so you need to change the primary drive gear as well . I found that it also made my 500 easier to start, as it gave more revolutions of the motor compared to the stroke of the kickstarter and should work well if you use one of those decompressors in the head. Using the 510 clutch basket, you also have to change your final drive gearing to suit , as well.
