XRAY NT18 0.8cc Engine Description · Specs. · Parts List  · Photos (1) · Download (1) ·   Download XRAY NT18 Engine Instruction & Safety Manual Download the new XRAY NT18 engine instruction & safety manual. This full colored 24 pages publication using 3D models is a perfect guide how to install, start, operate & fine-tune your new NT18 engine very easily and quickly. XRAY NT18 Engine Instruction & Safety Manual (pdf) - English Size: 439 (kb)