Author Topic: Motorcyclist Magazine - Updating the Honda CB750  (Read 41151 times)

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Offline Glenn Stauffer

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Motorcyclist Magazine - Updating the Honda CB750
« on: July 28, 2008, 04:58:26 am »
« Last Edit: July 28, 2008, 06:46:40 am by Glenn Stauffer »

Offline Markcb750

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #1 on: July 28, 2008, 08:10:49 am »
Great bit of information!

thank you
"The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge.""

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Offline gc8andy

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #2 on: July 28, 2008, 07:58:54 pm »
that has to be the longest post on here! Awesome information!!
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Offline Markcb750

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #3 on: July 31, 2008, 08:03:22 am »
I am replacing tires and would like to cure rear sprocket wobble this weekend.

The article lists  "NEP nylon rear sprocket" cannot find here or on Google.  might be a good modification while I have it apart.

Anyone have a lead or experience with this?
"The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge.""

"~Isaac Asimov

1976 CB750 K6
2003 Vulcan Classic 1500
1967 Black bomber
1982 CB900F

Offline lone*X

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #4 on: July 31, 2008, 08:39:02 am »
Good article with some very good information.  I am very curious about this item:
"Buy a set of 1976 YZ250 (No. 509-23145-L0-00) fork seals from your Yamaha dealer and install them in the fork legs. These seals are designed for 36mm fork tubes (the Honda's are 35mm), but they work very well in the Honda, having less friction than anything else available. Also, since they were designed for air fork use, their grip on the fork tube is not increased much with increased air pressure, as with standard seals."

I am rebuilding my 75 550K which I converted to air forks when it was new and intend to keep it that way.  Problem all along was that after a few years the seals would start leaking.  This may be a good upgrade if the Yamaha seals are still available.  Are the seals the same on the 550 and 750 forks meaning the upgrade would apply to the 550 as well?

Lone*X  ( Don )

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Offline CB750 Cafe Racer Fan

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #5 on: August 28, 2008, 11:46:12 am »
I live in Southern California which has pretty hot summers.  Is there any consensus on the need for an oil cooler, and if so the make/model, if the engine is not modded -- just to keep the engine running cooler and keeping the oil from cooking?

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #6 on: March 12, 2009, 01:42:19 pm »
Hi, in regards to oil coolers, I've ridden my 1975 stock cb750 in stop and go traffic quite a bit here in Chicago.  One day it was well over 104 degrees, and I had no problems.  Most late July and August days float between 80 and 90 degrees here.  I do run 20w50 castrol motorcycle oil, and I change it around 3 times a season (I ride between 10k and 15k a summer).  The only mod I have done to my bike is a billet oil filter mount, so that I can use spin-on oil filters from a 2004 toyota tundra.  I bought it off ebay for $45 and it makes my oil changes much easier (my original filter housing's bolt stripped and this was a cheaper alternative, and it looks pretty good).

Of course, an oil cooler is never a bad idea.  I was considering installing one because they are relatively cheap and simple to bolt on.  However, I wouldn't consider it necessary.

carbonatd

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #7 on: March 12, 2009, 01:53:23 pm »
Also, I think 550s and 750s share the same fork seals... At least when I bought mine, I was told they were interchangeable.

Offline Ricky_Racer

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #8 on: March 12, 2009, 05:23:30 pm »

Minton wrote a number of "Minton Mods" articles, notably for the Yamaha SR500. Interesting that he wrote this article during another nationwide recession.  RR

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Offline snowfighter2

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #9 on: April 02, 2009, 09:24:38 am »
awesome information!  I know a lot of us will be using the tips we got from you.
that which does not kill you, will give you some awesome scabs, which turn into some cool scars
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Offline Inigo Montoya

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #10 on: April 03, 2009, 02:56:42 pm »
Digging around, there was a rather HEATED debate a few months back about oil coolers. It appears the PRO cooler group may be right. I personally think so myself.

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #11 on: April 05, 2009, 01:48:29 am »
all this time i've been on the forum and i never read this post till today. good stuff and plenty of food for thought thanks a bunch Glenn

Offline HawaiiMike

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #12 on: May 31, 2010, 10:20:11 pm »
The article lists  "NEP nylon rear sprocket" cannot find here or on Google.  might be a good modification while I have it apart.
Anyone have a lead or experience with this?
The NEP sprockets were available in the late 1970's and early 1980's.  I used to have one on my GS750.  They were actually a bit noisy, kind of a whirring sound when I rode around at low speeds.  I'm pretty sure the high horsepower bikes available today would tear one of these sprockets apart.

Offline wannabridin

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #13 on: June 03, 2010, 09:40:13 am »
any idea when were going to get a scan of the original article available?  great piece of information though!!
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http://forums.sohc4.net/index.php?topic=64468.0

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Offline gane

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #14 on: August 12, 2010, 06:59:48 pm »
Just my 2 cents, BUT, having replaced at least a dozen fragged NEP sprockets (mostly Z's in the day) I would not rec. them. G

Offline piute

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #15 on: December 10, 2011, 07:54:58 pm »
This has got to be the best wright up I've read since owning my 750(5 months).Thank you all and will apply all that I've learned ,already did the seals and have put cooler on order.Do alot of touring and have had probs in these area's on other bikes,Due to loads and breaking with them ,Colorado and New Mex. Mountains Do get hot.
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Offline mickey6

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #16 on: December 10, 2011, 11:19:05 pm »
subscribed
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Offline Sgt.Pinback

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #17 on: December 08, 2013, 12:27:54 pm »
Has anybody here made that air fork conversion?

Thats what I found today: pro tec air fork caps for CB750 and 550, XL 250 350
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Offline burlybear

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Re: Motorcyclist Magazine - Updating the Honda CB750
« Reply #18 on: May 21, 2014, 10:51:32 pm »
hi
71 CB750