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Author Topic: saving a 1980 KZ750 twin  (Read 85993 times)

Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #550 on: Mar 26, 2019, 04:38:42 »
Engine is in the frame and everything is going back together. I installed the new RS34 carbs. I would like to retain the airbox, so I made these Delrin flanges to lengthen the carb body to fit with the airbox boots. This got me looking at the airbox itself. The K&N filter looks like it can flow plenty of air, but the cap that holds the filter on has a long down tube which is quite narrow in diameter (40mm). I'm thinking about trimming this all the way back to the cap and making the opening there as wide as it can be and still hold the air filter (about 55mm)

Worst case scenario I end up using pods but I would prefer to use the airbox if i can. Thoughts?

Offline irk miller

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Re: saving a 1980 KZ750 twin
« Reply #551 on: Mar 26, 2019, 08:10:39 »
Can't see why trimming that would hurt.  Plus, if you feel you need a tube there, you could always flare a better sized tube and weld (if it's metal) or rivet it in the OG tube's place.

Offline canyoncarver

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Re: saving a 1980 KZ750 twin
« Reply #552 on: Mar 26, 2019, 11:27:03 »
Either that or just drill out any number of holes in the stock piece. 

Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #553 on: Mar 29, 2019, 12:33:46 »
Crap. Of course the petcock is right where the throttle cables now live.  :-\

Offline beachcomber

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Re: saving a 1980 KZ750 twin
« Reply #554 on: Mar 29, 2019, 14:08:15 »
Ouch !!! Nice little relay wheel ? No such problems with my 40 DCOE Weber !!!
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #555 on: Mar 29, 2019, 15:11:33 »
Just a side mount throttle linkage. I think a different petcock might clear it just barely

Offline canyoncarver

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Re: saving a 1980 KZ750 twin
« Reply #556 on: Mar 29, 2019, 16:42:56 »
Just a side mount throttle linkage. I think a different petcock might clear it just barely

Sucks to have to run something other than a Pingel .


Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #557 on: Mar 29, 2019, 19:45:28 »
I will still run a Pingel. They have this super cool petcock that doesn't have a tang on it, just a knob, so you can orient it in any direction. I called their tech support, the lower body on this is smaller than what I currently have. I think it will clear. I also asked the dude how much wall thickness was there and he thinks I can safely shave off 1/16" of an inch if I need to.

Offline doc_rot

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Re: saving a 1980 KZ750 twin
« Reply #558 on: Mar 31, 2019, 18:28:51 »
Iím takin this bike on a road trip this summer so I fabricated a luggage rack, crash guards, and a better kickstand. Also got it running. The video really killís the sound. Makes it sound a bit ď fartyĒ.

 Sadly this will have to sit for 2 months until Iíll be able to ride it. I accepted an amazing job in LA so This will be in storage for a bit while I move. The bitter sweet part is I will loose access to all the cool tools I have had at my disposal. I have been working 1 or 2 days a month at my old college to retain access to their shops. Thatís all going to stop now :(

« Last Edit: Apr 11, 2019, 00:43:51 by doc_rot »

Offline irk miller

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Re: saving a 1980 KZ750 twin
« Reply #559 on: Mar 31, 2019, 21:39:47 »
I have been working 1 or 2 days a month at my old college to retain access to their shops. Thatís all going to stop now :(
I feel you.  I worked at Tyler School of Art (Temple University) in Philly for 6 years, if for no other reason then to have access to every studio, shop and tool that Art School had to offer.  When I moved on, it took me 5 years and a move to the south, where I could live cheap and have a lot of space, to recover with my own shop and tools.  I'll never have everythingTyler offered, but at least I'm functional again.  Why does this sound like an AA meeting?