Mike G : Don`t you mean too much free play if a valve is stuck open & the valve isn`t fallowing the tappet ? No free play would mean tappets were to tight & holding the valve open . He did say the bike started & ran after the plug change so that might point to stuck shifter or clutch . Unless he revved it WAY to high & bent a valve. Baby Huey
To: Honda-C70@yahoogroups.com
From: mgladu@mindspring.com
Date: Thu, 21 Jun 2012 10:33:27 -0500
Subject: Re: [Honda-C70] Kickstart won't engage 1981
At 3:32 AM +0000 6/21/12, sonodooc wrote:
>Wanted to test my new c70. Changed the spark plug and it fired
>right up. Then put the back wheel on and now the kickstart turns
>but doesn't seem to engage anything. No compression. Not sure what
>I did.
Reads like the plug hole is stripped, letting all your compression
out, but it's also possible your clutch is disengaged or a valve is
stuck.
Check the plug to see if it is getting tight in the head threads.
Take the plug out and make sure the engine is turning when you move
the kicker by hand. Look into the plug hole to see if the piston is
moving.
If it isn't, check the gear shift lever to see if it is in the
center. Push down a few times on the front and make sure it returns
to the normal resting position.
If the lever is not at the resting position, the clutch will be
engaged partially. This is a problem because the kick starter turns
the final shaft in the transmission, which turns the clutch, which
turns the crankshaft.
Another reason you might have no resistance is a stuck valve. An open valve
Open both valve adjustment covers and turn the engine over by hand,
watching for free play at the tappets.
No free play? Give the end of the adjuster a light tap with a mallet
and a wood block. This should free up the valve stem in the guide and
let the valve seat again.
Mike G.
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C70 Passport Not Running Right?
1970-73 C70 Honda Service Manual: http://tinyurl.com/6ebwtw
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1980-83 C70 Honda Service Manual: http://tinyurl.com/hu42c
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1982-83 C70 Troubleshooting Guide:
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