Could just be issues with the shifting dog. You just have to take off the left cover to see. I had a CT70 that the shift dog was loose on, kept slipping out of gear. I took it apart, tightened the dog with a impact wrench and put it back together.
(imagine a cute or dirty tagline here)
On Mon 17/10/11 10:39 AM , "Tom" wynnjunk@gmail.com sent:
> Hi Tim,
>
> Forgive the lateness in my reply. I was told that the transmission is bad
> because the bike is shifting out of gear and it's also difficult to shift
> into gear. that being said, it could be the drum shifter (as I understand
> it, although I haven't taken the bike apart to figure out just yet).
> I understand what you're saying about keeping the engine stock, that having
> power issues when my girlfriend is on the back and I think I might have to
> put in the Chinese engine. I think I'll keep the old engine, just in case
> this one doesn't work out!
> thanks again
> Tom
>
> --- In Hon
> da-C70@yahoogroups.com, "louiethespelunker"
> wrote:>
> > Hello Tom,
> > I have ridden my '82 C70 for 5 years and nearly
> 20,000 miles now with the stock engine. I have used it to commute almost
> daily for 4 years. I plan my routes so that I avoid roads with a speed
> limit over 45 mph. I would personally keep it stock unless you have no
> alternative lower speed routes to get where you need to go. I have thought
> several times about upgrading to the 120cc or 140cc Lifan but the
> practically flawless reliability and 100-110 mpg of my C70's little stock
> engine always wins out in the end. >
> > You mentioned keeping the engine but replacing
> the transmission. Is your transmission bad? >
> > My '82 had some shifting/popping out of gear
> problems when I bought it. I solved that along with an engine rebuild for
> less than $300 (thanks Dr.Atv) 4 years ago.>
> > Tim
> > --- In Hon
> da-C70@yahoogroups.com, "Tom"
> wrote:> >
> > > Flash quiz hotshots!
> > >
> > > Assuming I'll want to keep my 1983 C70 for
> many thousands of miles, would you rather:> >
> > > 1. keep the existing 70cc stock engine
> (15000 miles, rebuilt top end and clutch) but replace the transmission
> (taking the whole engine apart then reassembling it).> >
> > > or
> > >
> > > 2. install a Lifan 120cc plug-and-ride
> motor replacement - the one DrATV advertises to make "hyper
> Passports"> >
> > > http://dratv.com/120cceengine.html> >
> > > (assuming a muffler mount adjustment,
> simple rewiring, footpeg reassignment etc.)> >
> > > I'd like to hear thoughts from the
> intelligensia.> >
> > > Ciao,
> > > Tom
> > >
> >
>
>
>
>
> ------------------------------------
>
> C70 Passport Not Running Right?
> 1970-73 C70 Honda Service Manual: http://tinyurl.com/6ebwtw1970-73 C70 Troubleshooting Guide:
> http://tinyurl.com/6ebwtw (scroll to sec.7.1 page
> 101.jpg)1980-83 C70 Honda Service Manual: http://tinyurl.com/hu42c1980-81 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/z4zn61982-83 C70 Maintenance Schedule: http://tinyurl.com/hw35c
> More resources for C70 Passports and Cubs:
> http://www.shlaes.com/Vehicles/Scooter.htmhttp://www.velodrome.com/HondaC70/HondaC70.htmlYahoo! Groups Links
> To visit your group on the web, go to:
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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
