My new to me 2004 Burgman now has about 3,500 miles since I adjusted the valves in January. So yesterday I decided to check the valves trying to be as efficient (or lazy) as possible removing only the following to gain access to the valve cover;
Tunnel cover (right in front of the seat)
cover over air box
Airbox top
Air filter & holder
Hose/Tube from airbox to throttle body
Next I disconnected the seat from the support arm and used a bungee to hold the seat in a more open position. Also, I removed the 10mm bolt that secures the airbox so it could be moved around a bit, and loosened the throttle body from the intake hose. That was it for items removed or loosened (if my memory is working this morning)
I used a few bungees to hold the fuel lines and throttle body back and I was able to remove the valve cover.
Lastly, I had to removed CVT air filter & cover so I could turn the motor over (counter-clockwise). I rotated the motor until I found TDC by feel. You know you're there because intake and exhaust rocker arms will have a little wiggle (freeplay) to them.
I was able to check the valve clearance. The intake was .004in which was exactly how I set them in January and the exhaust was getting snug at .008in so they've tightened just a bit. Here's the note from the shop manual. Valve clearance (When cold):
Standard: IN.: 0.08 – 0.13 mm (0.003 – 0.005 in)
EX.: 0.17 – 0.22 mm (0.007 – 0.009 in)
I'm still in the the middle of the range so everything was good. Note, checking was OK but it would be really tight to actually adjust the valves with the air box still in the bike.
Now with a little history on the bike I plan to extend my next valve check to 6,000 or 7,000 miles which hopefully will be this winter.
Anyone else this lazy
Bruce
Tunnel cover (right in front of the seat)
cover over air box
Airbox top
Air filter & holder
Hose/Tube from airbox to throttle body
Next I disconnected the seat from the support arm and used a bungee to hold the seat in a more open position. Also, I removed the 10mm bolt that secures the airbox so it could be moved around a bit, and loosened the throttle body from the intake hose. That was it for items removed or loosened (if my memory is working this morning)
I used a few bungees to hold the fuel lines and throttle body back and I was able to remove the valve cover.
Lastly, I had to removed CVT air filter & cover so I could turn the motor over (counter-clockwise). I rotated the motor until I found TDC by feel. You know you're there because intake and exhaust rocker arms will have a little wiggle (freeplay) to them.
I was able to check the valve clearance. The intake was .004in which was exactly how I set them in January and the exhaust was getting snug at .008in so they've tightened just a bit. Here's the note from the shop manual. Valve clearance (When cold):
Standard: IN.: 0.08 – 0.13 mm (0.003 – 0.005 in)
EX.: 0.17 – 0.22 mm (0.007 – 0.009 in)
I'm still in the the middle of the range so everything was good. Note, checking was OK but it would be really tight to actually adjust the valves with the air box still in the bike.
Now with a little history on the bike I plan to extend my next valve check to 6,000 or 7,000 miles which hopefully will be this winter.
Anyone else this lazy
Bruce