So it turns out you were right. I set my timing perfect, and a day later it's off again. So how do i adjust the tensioner rod?
--- In Honda-C70@yahoogroups.com, myron andrews <mvandrews13@...> wrote:
>
>
> Mike or Bill : Could a non working cam chain tensioner & a lot of slack in the cam chain throw Jill`s timing off ? I ask because my 81 will not self adjust the cam chain slack ever since I down shifted & bent a valve in 84 ,but I can manually adjust by turning the tensioner rod in or out . Baby Huey
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> To: Honda-C70@yahoogroups.com
> From: mgladu@...
> Date: Wed, 3 Aug 2011 20:43:02 -0500
> Subject: Re: [Honda-C70] Re: Air blowing out of carb, not sucking in
>
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> On Aug 3, 2011, at 5:58 PM, "Jill" <jillvee@...> wrote:
>
> > I actually fabricated my S65 to fit a C 70 carb so i have the right
> > carb, but YES, i have all the right rods and pistons and everything
> > right that. I think i'm pretty sure it's a timing issue. I set the
> > rough time, with the fly wheel and cam sprocket, but can i set it a
> > more precise way?
> >
>
> Until you let us how far off you are, I'm hesitant to suggest this as
> a solution.
>
> Have you replaced the cam chain?
>
> I would put a new one on before I would go to extreme lengths to
> adjust cam timing.
>
> If the chain is worn, you could be quite a few degrees off.
>
> Other than a sheared key on the flywheel or a damaged or slotted cam
> sprocket - there are no other reasons for cam timing to be off.
>
> Unless you are racing, I don't recommend changing the cam timing.
>
> The problem in almost surely something else...
>
> Mike G.
> -
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> [Non-text portions of this message have been removed]
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1970-73 C70 Honda Service Manual: http://tinyurl.com/6ebwtw
1970-73 C70 Troubleshooting Guide:
http://tinyurl.com/6ebwtw (scroll to sec.7.1 page 101.jpg)
1980-83 C70 Honda Service Manual: http://tinyurl.com/hu42c
1980-81 C70 Troubleshooting Guide:
http://tinyurl.com/hu42c (scroll to sec.18-1 page 170.jpg)
1982-83 C70 Troubleshooting Guide:
http://tinyurl.com/hu42c (scroll to sec. 20-28 page 205.jpg)
1980-81 C70 Maintenance Schedule: http://tinyurl.com/z4zn6
1982-83 C70 Maintenance Schedule: http://tinyurl.com/hw35c
More resources for C70 Passports and Cubs:
http://www.shlaes.com/Vehicles/Scooter.htm
http://www.velodrome.com/HondaC70/HondaC70.html
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