Hello. I have a 1991 XR250L that a buddy gave me. It had swallowed a valve years ago and he had taken the top end off and misplaced many of the parts. Rather than trying to piece it back together, I purchased a complete 1988 engine on eBay. The existing engine is a wet sump, and the replacement engine is a dry sump. I didn't think the replacement engine, three years older would be a dry sump, but it is. My question is: is it possible to use the new dry sump engine in a wet sump (no oil frame). Can I swap the oil pumps? Any suggestions would be much appreciated!