Unless you have a misfire on the rear cylinder and as the two run of the same crank shaft this statement would be hard to pinpoint
Have a compression done on the engine to determine a drop in pressures
move the front injector (EFI) to the rear
if EFI have the fault codes read
IF carbureted with with a carby for each pot have the carbies tuned professionally
have the bike run a on a bike dyno for a power test
SOURCE: Removing Yamaha rear tire (1100 Classic)
do you mean remove the wheel? tires are best left to a shop to do as they have the machine. drive shaft yes? undo all bolts thru frame to final drive casing. slacken wheel nut but do not remove spindle, pull wheel back and out of the frame the drive shaft comes with it, tace out spindle and now lift final drive from wheel, there may be a spacer which might fall out. done deal..
SOURCE: 2007 650 yamaha vstar popping through the rear cylinder exhaust
First off did you buy it new? Second has it gone through its break in tune up yet?Did you do the re jeting? My guess is it was re jeted wrong & neeeds to be re jeted again or could also need more air(upgraded air kit) or a tfi or power comand fuel mod.My bike also poped untill I did the air & fuel upgrades & them upgrades will also give you a much needed house power needed for this rig.
Bring it to a shop & have it looked at.......
Good luck
SOURCE: 1100 yamaha 2003 vstar classic gas tank remove
1) Make sure your fuel petcock is closed, then detach the gas line coming off it (left underside of tank)
2) Remove the back seat (single acorn nut on rear fender)
3) Remove the front seat (two allen bolts at the back of seat)
4) There are two metric 12mm bolts under the front seat that hold the tank down. Remove them. The tank should be sitting loose on bike, but connected by some wires
5) Disconnect the white wiring harness under the bike. Tank is now totally free to remove.
6) Pull tank up and back at the same time, it will slide off the two rubber mounts at the front.
SOURCE: how do I adjust the timing chain on 2002 yamaha
The timing chain most likely adjusts itself( I am not certain) however a loose chain will cause an engine rattle, but is not the cause of popping and dying.
try cleaning the fuel system, new spark plugs,new air cleaner
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