Cylinder Head Pocket Porting & Valve Lapping : Yamaha TMAX Major Service Part 5 : Motorcycle Scooter

In this video series, I'll be replacing the fuel pump assembly and doing routine maintenance to my 2011 Yamaha TMAX 500. The service manual recommends a major service every 12,000 miles and a valve clearance check at 26,600 miles. My TMAX is at almost 28,000 miles, and the last major service was at 12,000 miles, so it's time to dig in. In part 5, I'm porting the TMAX's cylinder head! A little bit of work and a very small amount of expense may allow me to pick up some extra power through the process of primarily pocket porting or bowl blending. A little bit of port matching is done as well and smoothing casting flaws. The valves are lapped and the reinstalled so the head is ready for use. If you own a TMAX and are considering doing your own service, or are thinking about getting a TMAX, I hope the TMAX service series will help you get an idea of what it's like to do the 12,000 mile service, due at 12,000, 24,000, 36,000 and so on. This particular video is less about service and more about performance and may be helpful for motorcycles, smaller scooters and even autos. ----------------------------------------------------------------------------------- Tip Jar ( PayPal) : https://paypal.me/49ccscoot ----------------------------------------------------------------------------------- Products And Tools (affiliate links) -------------------------------------- Foredom SR w/foot control : https://amzn.to/3fEHRW8 Foredom H.28 handpiece : https://amzn.to/3AmwPN5 Foredom inner flex shaft (These can break if it catches. Keep a spare IMO.) : https://amzn.to/3AsKylP Router speed controller : https://amzn.to/3xxhpUH 1/8" shank single cut carbide burr set : https://amzn.to/2TZZ6tm 1/8" shank double cut carbide burr set : https://amzn.to/3lGlsvx Dremel drum sanding mandrels : https://amzn.to/3yCoVPi Dremel 60 grit sanding drums : https://amzn.to/3lK4UCO Dremel 120 grit sanding drums : https://amzn.to/2U2cg9f Clip-on headlamp : https://amzn.to/3fGNG5o Safety glasses : https://amzn.to/3fFAT3m Dust masks : https://amzn.to/3fIumVm Valve lapping tool : https://amzn.to/336JS6W Valve grinding compound : https://amzn.to/337CvvW Heavy duty valve spring compressor : https://amzn.to/3nLzbjM Budget valve spring compressor : https://amzn.to/3ea59mu Please Like the video and Subscribe for more if you enjoy it or think it's helpful. If the video could help someone you know, share it with them. Don't forget to click the bell to receive notifications if you haven't already. Thank you for watching. My Yamaha TMAX 500 Playlist :    • TMAX Videos   Use any information, suggestions, techniques and links provided at your own risk. 0:00 Intro 0:28 Basic Porting Info & Goals 6:44 Tools & Supplies 11:13 Intake Cleanup & Port Matching 12:54 Blending & Smoothing The Intake Port Entrance 20:06 Exhaust Port Exit Casting Flaw Cleanup 20:51 Marking And Protecting Valve Seats 30:24 Intake Port Bowl Blending 37:52 Exhaust Pocket Porting 40:44 Valve Lapping 48:01 Installing Valve Seals 49:49 Installing The Valves ************************* Songs & Sounds provided from the YouTube Audio Library. (In order of appearance.) Dumpster Door Hit Sun Spots by Silent Partner (Intro) River City by DJ Williams Modern Time by An Jone #CylinderHead #BowlBlending #PocketPorting