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Author Topic: CB750 page at Wikipedia  (Read 838 times)

Offline Larry Fine

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Re: CB750 page at Wikipedia
« Reply #25 on: August 09, 2017, 03:19:15 PM »
My '96 has a 17 tooth front (stock is 15) and stock sized 38 rear sprocket both of which were changed when it was time for a new chain.

Was a 112-link chain (110 is stock) long enough for the 17-t sprocket install?

Offline Kevdog3019

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Re: CB750 page at Wikipedia
« Reply #26 on: August 10, 2017, 06:09:05 AM »
My stock 700S averages 33mpg overall.  Best ever has been 54mpg on a straight highway run.  32mpg doesn't seem that far out of spec.

Just checked yesterday at fill-up with no highway/mixed backroad and city and was at 33mpg. I have never had the chance to get on the highway. Good to know about stock mixed MPG, thanks.

Offline mollusc

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Re: CB750 page at Wikipedia
« Reply #27 on: August 10, 2017, 07:13:12 AM »
FYI, I keep track of mileage for all my vehicles using fuelly.com
Easy to use even on a phone, and you can enter/edit entries at any time as well as compare to others' vehicles.
made of meat

Offline DesertDragon

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Re: CB750 page at Wikipedia
« Reply #28 on: August 10, 2017, 08:35:11 AM »
My '96 has a 17 tooth front (stock is 15) and stock sized 38 rear sprocket both of which were changed when it was time for a new chain.

Was a 112-link chain (110 is stock) long enough for the 17-t sprocket install?
Howdy..
No, the stock size is too short (not a big surprise, the front sprocket is 2 teeth bigger).
You should get an extra master link (2 instead of one) when you buy your chain, because the 122 is a bit long, and you won't have much adjustment left.
After several thousand when the chain is stretched a bit (or when you run out of adjustment space), remove the original master and one adjacent link and install the new master you wisely purchased earlier (so you now have a "stretched" 120) and you're good. 
It's a little bit of a pain, but if you have a decent set of chain tools, it isn't a difficult job, and you don't have to remove the chain twice to do it.

If you do a lot of interstate, it is well worth it.  If you are mainly a city driver, probably not.
The way you get improved mileage is by the engine not working so hard at a given ground speed.
Where I live, the speed limit is 75, so my bike spends a lot of time as a fast mover.

In the interest of full disclosure, instead of a roll on for passing, you need to downshift to get the bike into the powerband..
With the mod described, 4th gear is like 5th in the stock configuration.
You'll get better mileage because you are turning fewer revs, but of course that means the engine is producing less power.
That's how you get the big mileage bump - there's a big difference between 4K and 5K on the tach.

One other advantage is that the larger front is a bit easier on the chain, as it gets less "pinch" up front.

Keep the rubber on the bottom!
 bkr3
DD
Keep the Rubber on the Bottom!

DD

Offline DesertDragon

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Re: CB750 page at Wikipedia
« Reply #29 on: August 10, 2017, 08:39:15 AM »
Oops... just noticed the 110 / 120 112/122 error..
My bad...
Keep the Rubber on the Bottom!

DD

Offline skramer360

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Re: CB750 page at Wikipedia
« Reply #30 on: August 10, 2017, 06:53:14 PM »
My stock 700S averages 33mpg overall.  Best ever has been 54mpg on a straight highway run.  32mpg doesn't seem that far out of spec.

Just checked yesterday at fill-up with no highway/mixed backroad and city and was at 33mpg. I have never had the chance to get on the highway. Good to know about stock mixed MPG, thanks.

Man, I'm glad the mileage on my 700s is better than that. My 2 year average from my app is 42.96 mpg. My worst in the last 2 years is 38.99 mpg.

Offline Captainkirk

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Re: CB750 page at Wikipedia
« Reply #31 on: August 18, 2017, 10:33:24 AM »
The mileage on my 700S is, well...I top off on every ride and fill it when I'm showing 1/4 tank if it's a longer ride. And I haven't run out yet.
Measure twice, cut once

 

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