After 50 hours of riding I pulled my swingarm and linkage to check / grease the bearings. On reassembly, with all other engine mount bolts still tight, the rear engine "hole" doesn't line up well with the frame/swingarm/linkage (the engine sits about 1/16" low). Is this correct, ie is the frame / engine supposed to be connected with "tension", or should I relieve other frame bolt holes to remove it? Thanks for any advise.