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View Full Version : need help fast!!


muddzilla94
08-13-2009, 06:57 PM
put a new cam chain tensioner in my 400ex and its still making a noise, here is a video give it a look and tell me what you think. http://www.youtube.com/watch?v=uI0hh3W4dqY
omeeomy
08-13-2009, 07:02 PM
i dont know about the ticking but the exhaust sounds badd a**
muddzilla94
08-13-2009, 07:08 PM
haha thanks man i like it :) sounds way better in person its really loud, but the ticking is louder than the exhaust when it gets warmed up. i think my timing chain is stretched :S
drew416ex
08-13-2009, 08:20 PM
How long since a valve adjustment? It almost sounds like valves hitting the piston. Mine had a real loud tap like that when it jumped timing one time. IT jumped one tooth and still ran, it just had a horrible tick.
muddzilla94
08-13-2009, 08:23 PM
the last time it was in the shop they were adjusted maybe a month ago if that, if it jumped timing would i notice a decrease in power or would it be running any different?
Snipe
08-13-2009, 10:24 PM
replied to video def not the cam chain.

At least from the best I can tell on the video. cam chain stretched would make a winding noise.
wrekd
08-13-2009, 11:35 PM
Did the noise just come on all at once?? Or has it been steadily getting worse??
muddzilla94
08-14-2009, 04:41 AM
all at once
aDviSol2y
08-14-2009, 09:11 AM
You say that you just had the valves adjusted? If you talk to any good mechanic, they will tell you that sometimes when you adjust the valves, it will make your motor tick even louder. So if it started ticking loader after the adjustment, then this could be the issue. 400's are notorious for ticking.
katch26
08-14-2009, 09:26 AM
i didnt even look but you should replace the chain and tensioner as a set......info only
katch26
08-14-2009, 09:36 AM
Ive never heard a loose chain making a whining sound more of a slapping sound....a loose chain can also skip time and it would shift the power but not necessarily mean power "loss".
muddzilla94
08-14-2009, 01:38 PM
when im going down the road about 1/4 throttle in 5th then i pin it it will like rev high then catch and go. its never done that before only when the ticking started
aDviSol2y
08-14-2009, 01:50 PM
almost sounds like clutch or tranny issue
muddzilla94
08-14-2009, 01:55 PM
the wierd thing is tho, i had honda put a brand new clutch in it becuase the old one was worn out
aDviSol2y
08-14-2009, 01:56 PM
maybe the f'd up
muddzilla94
08-14-2009, 02:08 PM
but the clutch wouldnt be ticking like that
muddzilla94
08-14-2009, 07:52 PM
found out the problem- seems like the ace mechanic at the honda shop didnt tighten the cam sprocket bolts.
mcgrath
08-14-2009, 08:02 PM
right on at least you caught it before it was too late. Does it tick much anymore?
muddzilla94
08-14-2009, 08:04 PM
barely any at all, its got a slight tick but valves were in spec, just the normal 400ex sound lo
mcgrath
08-14-2009, 08:12 PM
right on mine doesnt tick until it gets hot, everything is in spec I have checked and rechecked.anoying though, I guess I will install a spal fan and see if that helps. I dont think it ticks too much I just dont like ticking at all.
muddzilla94
08-14-2009, 08:14 PM
me either it gets annoying. my header pipe glows orange too lol which way do you think i should jet, richer or leaner?
mcgrath
08-14-2009, 08:25 PM
Id jet it richer, what do you have in it right now?
muddzilla94
08-14-2009, 08:34 PM
its all stock jetting, i was thinking a 42 pilot and a 155 main does that sound good
mcgrath
08-14-2009, 08:47 PM
yeah probably 40 pilot and a 155 main to start with. I have a 416 ,11:1 piston k&n filter and I run a 40 pilot and a 155 main runs excellent. stock with an exhaust will definately run lean. Everything you do to increase air flow leans air fuel ratio more.
muddzilla94
08-14-2009, 09:31 PM
alright ill give that a try, thanks man