Spacer block > Dual Mounting Blocks and Studs

Use this Cheap Ass economy kit to move your 2-stroke engine forward enough to be able to attach the front of your engine to the bike's downtube and clear carburetor's air cleaner from seat post.   

This method can avoid having to use a high-cost but yes better made CNC billet mounting bracket or other means to attach the front part of your engine to your bike's frame downtube. 

This kit consists of 2 Aluminum mounting blocks and (2) M8-125x110 studs.   It is advisable that one end of each M8 Studs be field re-threaded to have a thread length of approx. 40mm.

To make as one block apply masking tape across the half-moon opening on the bottom of the 2 mounting blocks and then fill the middle halfmoon with epoxy or JB Weld, thus making a one-piece block.