While riding my 2003 yzf 450 i started hearing a clapping noise coming from the front end (motor) i think but mainly when i go up hill at a slow speed but now when i start out in first i hear it to an

SOURCE: 2007 Yamaha yzf r1 Bike pulls when you turn right or left

i have the 1100A XVS Classic, very touchy about tyre pressures being low especially the front

SOURCE: YZF 250 has a hard time starting but when it's

needs a valve adjustment those bikes shim under bucket and are hard to do get a book or bring it to a dealer

SOURCE: 83 Yamaha XJ550 hesitating and losing power at higher speed

I had a 1981 XJ650 and I can tell you carburetion is a nightmare on these bikes! While every manufacturer on the planet used Kehnin carbs Yamaha decided to contract with a company that NEVER made carbs before - Hitachi...
Because of the year, it could be several different things, let's start with the easiest/common.
#1. Grab a STRONG flashlight, open the tank and look inside...if you see ANY rust, I recommend removing the tank and Kreme it. #2. Remove the carbs, if you can...take a good look at the carbs "boots" the black manifold(s) between the carbs and back of the engine. If done carefully, it's not too difficult and shouldn't take more than 2hrs. Check the boots for cracks or damage that allows air too leak into the engine during operation...if they are damaged, you'll have to Google carb-parts for Yamaha's? #3. The easiest way to clean the carbs is to go to Advance Auto Parts and buy a can of "SeaFoam" and add it to a tank of gas per instructions (more is NOT better).
Good Luck

SOURCE: I have a 2005 YZF 450. Can I put on a electric

I think that the WR version has electric start, but it may require that the engine cases be changed, pricey!!! Not to mention wiring, battery, and on.

SOURCE: No electric to start YZF R1 motor bike,

check kick stand safety switch is working proper