Topic: Copy of Classic Bike article on Tuning SOHC requested

[DrMark]

I have searched over a 50 mile circle to my smalltown Iowa home and cannot find a copy of the Classic Bike article recently published on tuning our SOHCs. Is anyone willing to scan and e-mail me a copy. It would be greatly appreciated. Thanks, DrMark

drmark@fbcom.net

[jdigga]

Scanning now; will email shortly...

On its way (it's a big PDF--13MB).  CC'd you, heffay.

Never mind--too big, won't go through. 

It's here now for everybody: Download ClassicBikeSOHCarticle.pdf

[CrisPDuk]

Have you tried their website, most of their prvious articles appear on it

[GroovieGhoulie]

OK, that article is confusing me.  I've done everything in it at some point or another except set the points dwell mostly because I need to get a dwell meter or multimeter with dwell function.

Anyway, I was reading about it and it said to adjust dwell, you set up the meter, start the engine and then rotate the points plate while the engine is running until you get the right amount of dwell.

Wouldn't moving the points plate throw off your timing, assuming you had already set it?

[GeoffT]

DrMark you can ignore my PM seen as Jdigga has posted an excellant link to the article.

[Einyodeler]

Hey GG
Using a dwell meter is basically just another way to set your points. Once you have set the right dwell your points gap will be right on.

[GroovieGhoulie]

Hey GG
Using a dwell meter is basically just another way to set your points. Once you have set the right dwell your points gap will be right on.

But they said to set the dwell by rotating the whole points plate.  Wouldn't that throw off the timing?

[TomC]

Hi Classic Bike readers
     The author was using a Honda Dwell meter. I am assuming that the Honda meter has a setting for checking the dwell on our bikes. Any dwell meter that I am likely to use will have a setting for 4, 6, or 8 cylinders. And the meter assumes that there is a distributor with one set of points. On the other hand I do not think that 49 degrees is the correct amount of dwell for our bikes. Maybe he was using a normal dwell meter on the 4 cylinder scale?? Have anyone tried using a normal dwell meter set on the 4 cylinder scale?
     I thought that the prices quoted in the article for working on a Honda 4 were outrageous.
          TomC

[Einyodeler]

Hi Tom
The correct dwell measurements are as follows:
 92-98 deg (2cyl scale)
 46-49 deg (4cyl scale)
 23-24.5 deg (8cyl scale)
Most of the older dwell meters you find just have the 4-6-8 scale.

[Einyodeler]

Hey GG
Using a dwell meter is basically just another way to set your points. Once you have set the right dwell your points gap will be right on.

But they said to set the dwell by rotating the whole points plate.  Wouldn't that throw off the timing?

To set the timing for the #1&4 you do rotate the whole points plate after that you move the small plate for #2&3.