Question about ticking noise on 1985 VT500C - Honda Shadow Forums : Shadow Motorcycle Forum

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Old 05-27-2010, 08:59 AM   #1 (permalink)
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Default Question about ticking noise on 1985 VT500C

Hey everybody, first post, first bike...appreciate the help in advance.

I recently picked up a 1985 VT500C, in really good shape, with 16k miles. It runs really good and strong, starts right up, and I do not notice any flat spots during acceleration. My only concern is a ticking noise coming from somewhere in/around the engine, it's hard to pinpoint where.

When I start the bike up and let it idle for a couple mins, you do not here the ticking. Then, as the bike warms up, it starts. When riding, you can hear it. It's difficult to hear when accelerating, over the other engine noise, but when the engine is quieter, you can definitely hear it.

I changed the oil when I got the bike, and used Honda 10w40, the synthetic blend. Then I had read that using a heavier oil might help, so I changed it last weekend to Amsoil 20w50, and it didn't help (although the bike feels like it runs smoother. I did change out the aintifreeze, final drive oil, and air filter as well, although I did not expect any of those to help with the noise.

So, does this sound like a valve issue? Maybe they just need adjusted? Is it anything that I need to be really concerned with right now, if the bike is otherwise running like a champ? I was planning on taking it to a mechanic this summer, but if I am okay to ride for a bit, I'd rather wait on taking it in.

Appreciate the help, thanks again.

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Old 05-27-2010, 09:08 AM   #2 (permalink)
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Just scrolled down a couple inches and saw another thread regarding ticking noises, and I had searched on some older ones, so sounds like a common issue, and not one that has a single cause...sorry for the duplicate threads.
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Old 05-27-2010, 11:18 PM   #3 (permalink)
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Ya my 84 vt500c has a tick to it aswell. I think its fairly normal, it could be your valves out of adjustment but mine still had a slight tick at idle even after I adjusted them. Im running 10w40 conventional oil.

'84 VT500C
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Old 05-28-2010, 07:08 AM   #4 (permalink)
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Your valves need adjusted. But they will still tick. If you dont hear the tick than your valve clearances are too tight and you will have burnt valves.

8mm and 10mm wrench, large flat screwdriver, 17mm socket with extention, feeler gauges, small flat screwdriver.

those are the tools you need to do the valve adjustment. Oh and you also need a philips screwdriver and a 10mm socket to get the seat off, and a 12mm socket to get the tank off.

1981 cb750c with 900f forks, cams, oil cooler.
1983 vt500c
1979 cbx
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Old 05-28-2010, 03:02 PM   #5 (permalink)
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Thanks for the advice. I was thinking it is due for a valve adjustment anyways. I'll read up on that and see if it's something I think I can do.

I did figure out how to get the seat off finally the other day, when I was replacing the rear turn signal assembly, that took a while. First bike, not familiar with how they come apart...

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Old 05-29-2010, 06:21 AM   #6 (permalink)
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The tiking noise was the problem with my VT 500 to.Im suspected a couple things,like valve adjustment,crankshaft bearings etc.
The bike runs fine but the tiking noise was there,somtimes at cold engine was disapear.
This spring made a karb cleaning,Made a hommade karbsynchroniser.
synnchronyse the carbs and the noise gone...
The rear cylinder get a smaler ammount of fuel air mixture so,the rar cilinder slowing down the front cilinder,so the rear camchaintensioner release the tension on camchain,and the camchain make the tiking noise.
On front cyl. try to locat on left side on the rear cyl. try on right side to locate the tiking noise.
So my advice is to synchronyse the carbs. it wont hurt to bike,just good.
I run in my bike MOTUL 20w50 mineral.

Honda VT 500 C 1983
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Old 06-12-2010, 09:09 AM   #7 (permalink)
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Default tapping in the engine

Hi mate, i have bought an 86 VT500C, i appear to have the same issue, done some work on resetting the valve clearances, from what i can see it appears normal on these bikes, i haven't come across one as of yet that doesn't have this tapping issue. Apparently its nicknamed happy tapping, its the tappets on the top of the valves that seem to just cause a bit of a noise when the bike warms up, but i dont personally think that its abnormal for these bikes
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Old 06-29-2010, 02:24 PM   #8 (permalink)
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Since its your first bike it wouldn't hurt to ask if you have checked the ignition coil for a worn spot, can cause an arc and a noticeably rougher running bike.
"The more I learn the less I know"
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Old 04-04-2012, 06:11 AM   #9 (permalink)
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My 86 VT500C taps itself right on down the road happy as a clam. It you hear NO tapping whatsoever, then you have your valves too tight, and can burn one up. Slight tapping is good, and normal. Just make sure your fluids are in order, and maybe go to a 20w oil...but that probably won't do much more than soften the sound when cold.
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