Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums - View Single Post - Loud knock coming from engine
View Single Post
post #3 of (permalink) Old 06-29-2006, 04:55 PM
Once Banned
cegodsey's Avatar
Join Date: Jun 2006
Location: Bryant, Arkansas
Posts: 2,125
iTrader: (0)
Take the one of the plugs outta each cylinder, and see if you can see anything, like damage. Might take the left side cover off and turn the engine manually (CCW, I think), and see if you can see the valves. It would help if you had a boroscope! If it's a valve hitting the cylinder, you should be able to see an impact point on the piston, and maybe a damaged valve. But if the bike appears to be running OK other than the noise, it may be deep in the bowels of the crankcase.

2000 A16
Drilled baffles
$65 leather saddle bags
Kuryaken grips
relocated R/R
25,000+ original owner miles
cegodsey is offline  
For the best viewing experience please update your browser to Google Chrome