VT500 shadow question - Honda Shadow Forums : Shadow Motorcycle Forum

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Old 08-01-2010, 10:34 PM   #1 (permalink)
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Default VT500 shadow question

My son just got a 1986 vt500 shadow. It runs good and he couldn't be happier. My question is do you have to adjust the valves on these bikes? I have a vtx 1800c and you do on mine so I'm guess you do. Is there a on-line manual or a right up on how to do this? Is there anything else to look for on this bike?
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Old 08-01-2010, 11:00 PM   #2 (permalink)
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This isn't for the 500 but should be along the same lines, best thing would to get a service manual, ordering mine next week. Until then this link has helped me out on a few things.

http://www.vt750dc.com/index.php?page=mods
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Old 08-01-2010, 11:29 PM   #3 (permalink)
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This is from my '83 Honda Shop Manual for my 500. I'm not sure if any of the clearance values are exactly the same for the '86, but they're probably very close.

Hope this helps,

dv

"VALVE CLEARANCE

Note: Inspect and adjust valve clearance while the engine is cold (Below 35deg C/ 95deg F

Remove the frame side covers and the seat.

Turn the fuel valve OFF, disconnect the fuel line and remove the tank (page 4-14)

Remove the timing cap from the right crankcase cover.

Remove the valve adjusting hole covers and caps.

For front valve clearance adjustment, rotate the crankshaft clockwise to align the "FT" mark with the index mark.

for rear valve clearance adjustment, rotate crankshaft clockwise to align the "RT" mark with the index mark.

Make sure the piston is at TDC on the compression stroke; rocker arms should be loose.
Check the clearance of both valves by inserting a feeler gauge between the adjusting screw and valve stem.

VALVE CLEARANCES:
INTAKE: 0.10mm (0.004in)
EXHAUST: 0.10mm (0.004in)

Adjust by loosening the lock nut and turning the adjusting screw until there is a slight drag on the feeler gauge. Hold the adjusting screw and tighten the lock nut.

TORQUE: 20-25 N-m
(2.0-2.5 kg-m, 14-18 ft-lb)

NOTE:
for intake bulb clearance adjustment, use the two feeler gauge and adjust intake bulbs clearance at the same time

Recheck the valve clearance.

Install the removed parts in the reverse order of disassembly."
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Old 08-04-2010, 08:02 PM   #4 (permalink)
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any ideal on how to get the timing cover off the right crank case? man that thing is stuck.
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Old 08-05-2010, 06:10 AM   #5 (permalink)
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Hi;
Use a rubber mallet and beat the hell out of it. It will come out.
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Old 08-06-2010, 08:53 PM   #6 (permalink)
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Ok I got the cap off the side. What size wrench is the lock nut? I dont have anything that will fit that little thing. Does anyone know if it is reverse threads?
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Old 08-07-2010, 01:17 PM   #7 (permalink)
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lock nut on the valve rocker? If so I think its 10mm ?
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Old 08-07-2010, 04:54 PM   #8 (permalink)
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its not the regular nut, its alittle square one on top that locks the nut.
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Old 08-08-2010, 07:53 PM   #9 (permalink)
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Ah yes. Loosen the lock nut than turn that. I used one of my ignition wrenches. You can get a metric set at sears.
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