Topic: Dorothy III - CB750

[seanbarney41]

Prokop, you might look into the viability of using some variety of VF/Interceptor swingarm...I have done no actual measurements, but the arm on my '86 VF500 is a very nice aluminum swinger and looks like it could go into a cb quite easily.  You would need to fab and weld mounts for twin shock.

[70CB750]

Prokop, you might look into the viability of using some variety of VF/Interceptor swingarm...I have done no actual measurements, but the arm on my '86 VF500 is a very nice aluminum swinger and looks like it could go into a cb quite easily.  You would need to fab and weld mounts for twin shock.

Thank you, I will look into it.  I already decided to scratch the single shock idea, not worth it.

[70CB750]

Wow, the ebay price on these is amazing.  But it seems to be cast aluminum, I would not feel safe alternating cast aluminum.

Would you mind taking some basic measurements - just ball park figures - width, bolt to axle...?

Prokop, you might look into the viability of using some variety of VF/Interceptor swingarm...I have done no actual measurements, but the arm on my '86 VF500 is a very nice aluminum swinger and looks like it could go into a cb quite easily.  You would need to fab and weld mounts for twin shock.

[seanbarney41]

Wow, the ebay price on these is amazing.  But it seems to be cast aluminum, I would not feel safe alternating cast aluminum.

Would you mind taking some basic measurements - just ball park figures - width, bolt to axle...?

Prokop, you might look into the viability of using some variety of VF/Interceptor swingarm...I have done no actual measurements, but the arm on my '86 VF500 is a very nice aluminum swinger and looks like it could go into a cb quite easily.  You would need to fab and weld mounts for twin shock.

I will see what I can do cuz I have been curious to see how hard it would be to get it into a cb frame...it will need modifying as it is monoshock and I think that a monoshock cb is just a ton of work for a bad result...really overwhelmingly busy with other things right now but hopefully I can find time for some rough measurements some time in the next week...also, the vf/vfr bikes went through many subtle changes and there were several different sized bikes over several years (Honda's usual m.o.) so if the '86 vf500f doesn't drop right in, there may be a very similar swingarm from another year/model that does

[70CB750]

Thank you, sir. I am not gonna start the build anytime soon, more like having an idea and wait and hunt for the best prices.

[70CB750]

Btw, I took apart and cleaned pair of 93 VFR front brakes and love them to pieces, beautiful design.

[70CB750]

Working different project.

[RAFster122s]

So, your lumber was cut and presumably stickered for drying and spring is here most of the place in the US and summer weather in may places.  Have you managed to do more on the bike?

David

[70CB750]

So, your lumber was cut and presumably stickered for drying and spring is here most of the place in the US and summer weather in may places.  Have you managed to do more on the bike?

David

Thank you for asking  I got the sawmill to be dependable about month ago, it cuts but it still needs more work.  Just finding the right power transfer solution was complicated, here I utilized  Subaru timing chain tensioner, seems like it will last.

Dorothy maybe this winter, still have to deal with Red - I have one of those infamous cam chain tensioner, it could be all OK, but I bought it from Vintage750. 

[MoMo]

very creative sawmill.  What do you use it for?

[70CB750]

very creative sawmill.  What do you use it for?

Thank you.  These days I am cutting up some white oak, already done 5 logs of red eastern cedar;  generally I want to be able to turn logs into boards/beams as necessary.

I wish I build one years ago.

[grcamna2]

Prokop,
I think the 1st generation 86-87' VFR750/700F Interceptor rear swing-arm would work well on your CB750 modification;that one is not 'cast' aluminum.

[70CB750]

Prokop,
I think the 1st generation 86-87' VFR750/700F Interceptor rear swing-arm would work well on your CB750 modification;that one is not 'cast' aluminum.

That is good to know, thank you.  Looks like they are dirt cheap on eebay too.

[grcamna2]

I used to own a 1986' VFR750F and still have a few oem & custom parts for it including brand new oem swing arm bearings & a custom bushing/spacer kit for fitting a CBR600F2 rear wheel onto it.

[RAFster122s]

 Cool sawmill. I can't figure out your mechanism for the tracking end to end.  Glad you got it working. What method are you using to get the log on the machine? Have you built a solar drying kiln shed?
Saw one years ago and it was able to dry the cut materials much dryer than typical air dried methods and it was an easy construction method with the angled face in the common arc of the sun to take advantage of the peak sun hours.

[Retro Rocket]

Prokop,
I think the 1st generation 86-87' VFR750/700F Interceptor rear swing-arm would work well on your CB750 modification;that one is not 'cast' aluminum.

That is good to know, thank you.  Looks like they are dirt cheap on eebay too.

Check the length, thats the biggest issue...

[SOHC4 Cafe Racer Fan]

Prokop,
I think the 1st generation 86-87' VFR750/700F Interceptor rear swing-arm would work well on your CB750 modification;that one is not 'cast' aluminum.

That is good to know, thank you.  Looks like they are dirt cheap on eebay too.

Check the length, thats the biggest issue...

No kidding.  Shortening it while retaining structural integrity will require some thought and skill with a tig.

[70CB750]

Thank you.  I use hydraulics to get the bigger logs up.  The original Logosol uses steps where you 'walk' the log up one side at a time.



If by tracking you mean moving the log for the next cut, that's 1" ACME on each end with welded on ring handle.  The saw head I originally pushed myself into the cut, before I tried an old boat winch.  Now it is easy, just slow winching.

No kiln yet, not sure if I will ever build one, but guy I know stored his wood in the attic.  While it was pain to get up there, it dried fast and free just from sun heating the attic up.

Cool sawmill. I can't figure out your mechanism for the tracking end to end.  Glad you got it working. What method are you using to get the log on the machine? Have you built a solar drying kiln shed?
Saw one years ago and it was able to dry the cut materials much dryer than typical air dried methods and it was an easy construction method with the angled face in the common arc of the sun to take advantage of the peak sun hours.

[70CB750]

I hear you, thanks   

I want to use original 18" wheel too, but all of this is just planning, I just dont have time to work on it now.

Prokop,
I think the 1st generation 86-87' VFR750/700F Interceptor rear swing-arm would work well on your CB750 modification;that one is not 'cast' aluminum.

That is good to know, thank you.  Looks like they are dirt cheap on eebay too.

Check the length, thats the biggest issue...

[70CB750]

Prokop,
I think the 1st generation 86-87' VFR750/700F Interceptor rear swing-arm would work well on your CB750 modification;that one is not 'cast' aluminum.

That is good to know, thank you.  Looks like they are dirt cheap on eebay too.

Check the length, thats the biggest issue...

No kidding.  Shortening it while retaining structural integrity will require some thought and skill with a tig.

I talked to Cal already 

[RAFster122s]

Red Cedar makes some nice outdoor furniture when dried and then sealed once you make the item. Even can make nice looking furniture...just a little soft as it will dent easily.  I couldn't figure out how your cutter was going end to end... I saw the Acme Jack screws.
Nice looking setup and I imagine it will pay for itself quickly. Those are some nice looking logs.

[70CB750]

I bought a swingarm, now what? 

[Stev-o]

Prep and paint?

[70CB750]

It is aluminum from 1980 Suzuki - needs some serious fitting

[Retro Rocket]

It is aluminum from 1980 Suzuki - needs some serious fitting

When measuring at the pivot end to shorten, as it looks like you have roughly marked, don't worry if you go a little over stock length, an inch over at the rear won't make a great deal of difference, the rear is a little more acceptable to change, and has a lesser effect than playing with the triple clamp offset at the front, which has to be a more thought out process,  the biggest thing to "fix" with that arm, apart from length {if thats an issue for you}, is either to make up a sleeve for the Honda pivot bolt so it fits the GS arm  or, bore out the pivot holes in the frame to match the GS arm using the Suzuki pivot bolt. Neither fixes are too hard, they just need to be done accurately.  They are a well built arm and are a very common addition to the old 900/1000 kawasaki's....