I am a new Tecate owner and learning a lot. I opened up my 88 and found out it is a big bore. Runs OK but I am sure it will need the top end freshened up after this season. does anyone have any info on where I could find replacement internals for this? Power valves appear to be KX , looks to have significant head work done (compression test came out at 220lbs). Any help or info would be greatly appreciated.