Well described.
In my case, the varying engine sound is replaced with a constant volume brrrr.
Its the lower revs which make the engine happier and more economical.
Changing front sprocket has the most pronounced effect as the 14 to 15 is a big percentage change.
I figured that as my ride does not involve too many stop lights and a few long stretches, the lower revs would do us both (me and the machine) some good.
One friend of mine is weighing pros and cons as he has to deal with a lot of traffic and stop lights. He cannot let go of the acceleration of 14.
--- In Honda-C70@yahoogroups.com, bythervr@... wrote:
>
> I have a stock 3 speed C70 and swapped my 14 tooth for a 15 tooth front sprocket. I found the bike doesn't seem to accelerate as well and seems to take longer to get up to speed but I have a faster top end, especially going down hill. When cruising at 50km/30ml the engine doesn't rev as high.
> Barrie
>
>
> --- In Honda-C70@yahoogroups.com, "A" <ak6666666@> wrote:
> >
> > Yes very true. I totally agree.
> >
> > But my sprocket madness did another, final, iteration.
> > 17x37 changed to 17x34 and bliss.
> >
> > --- In Honda-C70@yahoogroups.com, Mike Gladu <mgladu@> wrote:
> > >
> > > At 5:55 AM +0000 5/21/11, A wrote:
> > > >After reading about the existence of a 17 teeth sprocket, yesterday
> > > >I searched for one and found it, for dollar 1. Changed my 16-37 to
> > > >17-37 gearing and the difference is WOW.
> > > >Now my 4th gear is practically a true 5th gear. Im fine in 3rd and
> > > >when I shift to 4th, its bonus. In 4th, at idle revs, the motorcycle
> > > >does about 20 km/hr.
> > >
> > > Unfortunately, the rest of us with C70's and three speed
> > > transmissions will suffer with a 17t sprocket.
> > >
> > > We don't have the luxury of downshifting to third to get the pull
> > > necessary to forge up hills and accelerate when we need to. We only
> > > have second, which is usually too low to be useful, and with a 17
> > > will be like third, and we lose the pull in first AND third.
> > >
> > > Sigh.
> > >
> > > Stick with the 14 or 15 folks if you have a stock C70.
> > >
> > > Mike G.
> > > -
> > >
> >
>
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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