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Post by tonyd123 on Nov 13, 2022 22:04:27 GMT 1
Thought these videos may help someone, good simple guide for all YPVS engines.
Ep.1 TDR250 Big End Check & New Piston install
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Post by tonyd123 on Nov 13, 2022 22:05:38 GMT 1
Ep.2 TDR250 YPVS Power Valve install
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Post by tonyd123 on Nov 13, 2022 22:06:01 GMT 1
Ep.3 TDR250 Fitting the Barrels
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Post by tonyd123 on Nov 13, 2022 22:06:18 GMT 1
Ep.4 TDR250 Fitting the Cylinder Head
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Post by tonyd123 on Nov 13, 2022 22:06:31 GMT 1
Ep.5 TDR250 Top End Rebuild PROBLEM
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Post by tonyd123 on Nov 13, 2022 22:06:43 GMT 1
Ep.6 TDR250 New 0.9mm Head Gasket & YPVS Setup
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Post by tonyd123 on Nov 13, 2022 22:06:56 GMT 1
Ep.7 TDR250 Copper Gasket FAIL & Fix
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Post by jon on Nov 17, 2022 18:55:28 GMT 1
I’ve only watched the first one so far. Some sage advice, but also a few faux pars.
Plenty of big end checks on the conrod, but no mention of a small end check. Yambits small ends Erm? ‘Complicated’ piston to bore clearance calculations, but can’t remember what it was? It’s really quite simple. Good advise to check ring gaps. However no mention of what to do if they are out. Also a must to test the piston in the bore afterwards if using the expander rings. Inlet charge ‘sucked’ up the cylinder, more like pushed. The biggest faux par was his advice that the arrow faced the front of the bike, whilst technically true for this TDR; it faces the exhaust port. Would ruin a 3MA rebuild for example with this advice.
Jon
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