Also Check Out
ATVFlorida.com
PinballShark.com

© 2014
HondaCB1.org Message Forums
October 22, 2018, 09:32:44 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Welcome to HondaCB1.org! Please register in the Forum to post messages or view attached photos.
 
   Home   Help Search Login Register  
Pages: [1]
  Print  
Author Topic: CB-1 new owner impressions  (Read 234 times)
emiller412
Jr. Member
**
Offline Offline

Posts: 5


View Profile
« on: October 04, 2018, 01:39:27 AM »

Bought my first CB-1 this summer, finally got it running after carb overhaul and fuel pump replacement (used, off ebay), thanks also to Spurlock, ... Great engine, such precision, the sound of it (used to have a 1977 CB400F 40 years ago) is fantastic .. Amazing performance, 13.5K rpm .. but anything over 10K is frightening.   Wide power band, not peaky.  Compact seating position, great brakes, nice gauges..  Unusual yellow neutral light.. I like it.

Bars are low, thumbs hit gas tank at full lock.. Most surprising is short gearing.   I keep wanting to shift up, it feels like it's in 4th when it's in 6th.  Ok, I understand it's the very high redline but it has the torque to go 4500 at 60mph, no need to spin 6500.   8.5K at 75 mph seems extreme, yes, it wants to rev higher ..  I see why they did it, but couldn't we have a taller top gear?   So extraordinary, it makes me think for hours  .. but I wouldn't change it, this is how they wanted it, it's not for me to criticize... 

Engine is excellent, transmission operation is perfect.  Technology and precision is outstanding.  Compact feel, a pleasure to drive, terrific styling.   An amazing engineering achievement.

Logged
filterMan
Full Member
***
Offline Offline

Location: N/W England

Posts: 140



View Profile
« Reply #1 on: October 04, 2018, 04:12:54 AM »

Welcome emiller412, your analysis is spot on, great engine and yes top gear should be higher. But apart from that I think it does everything well and me having freakishly short legs it suits me :-) I've had mine for seven years now and I can't seem to part with it. Enjoy!
Logged
Efreeman55
Full Member
***
Online Online

Posts: 248


View Profile
« Reply #2 on: October 04, 2018, 09:50:12 PM »

You can change sprockets to get taller gearing but will have an inaccurate speedometer since it's driven off the trans sprocket instead of the front wheel like many bikes.  I dropped about 4 teeth on the rear sprocket and it has helped and the accelerations is still good.

Eric
Logged
Spurlock
Full Member
***
Offline Offline

Location: N. California

Posts: 116


View Profile
« Reply #3 on: October 08, 2018, 08:29:15 PM »

Welcome emiller 412, I also agree with your impressions, these are amazing bikes! I am light - 150# w/gear - and like you found the gearing way too low. I went up to a 16T C-S sprocket and down to a 37T rear and like it much better. I can still motor through 30 mph zones without needing to downshift, and the transmission is still close ratio and acceleration is still downright frightening at high revs. We like pictures, post some when you can!

-Bill
Logged

1975 Honda CB125S2, 1989 Honda NX250, 1989 Honda GB500, 1989 Honda CB-1
Spurlock
Full Member
***
Offline Offline

Location: N. California

Posts: 116


View Profile
« Reply #4 on: October 08, 2018, 11:24:55 PM »

Forgot to add, with my 16/37 sprockets the speedo is about 7 mph slow but in sixth gear the tach numbers match mph almost exactly according to GPS, i.e. 6K rpm = 61 mph. So I just watch the tach as long as I am in 6th gear.

-Bill
Logged

1975 Honda CB125S2, 1989 Honda NX250, 1989 Honda GB500, 1989 Honda CB-1
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!