Nighthawk-Forums.com - Your Honda Nighthawk Motorcycle Forum !
May 25, 2012, 10:56:17 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Happy 4th Birthday Nighthawk-forums.com!  wings
 
   Home   Help Search Member Map Contact Login Register  

Pages: [1]   Go Down
  Print  
Author Topic: Too much driveline lash?  (Read 699 times)
0 Members and 2 Guests are viewing this topic.
NicholasDM Topic starter
Contributing Member
***
Offline Offline

Bike: Nighthawk
Posts: 126

Join Date: Dec, 2010




Ignore
« on: December 05, 2010, 12:09:50 PM »

This is an '86 CB700SC with an '84 engine in it and I'm wondering if the drivetrain lash that I'm seeing is excessive. The previous owner wasn't kind to this engine or the original and with as much free play as I'm seeing in the rear end here it makes it hard(er) to take it through corners in lower gears.

Could someone take a look and give me their opinion? Thanks!

Logged
Munkey
Senior Member
*****
Offline Offline

Gender: Male
Age: 50
Location: Paducah, KY
Bike: 1985 CB700SC Nighthawk S
Posts: 1930

Join Date: Jul, 2009



WWW

Ignore
« Reply #1 on: December 05, 2010, 12:14:07 PM »

Looks about normal to me.
Logged

1985 CB700SC Nighthawk
skramer360
--- NHF---
*
Offline Offline

Gender: Male
Age: 43
Location: Bloomington, In
Bike: 1985 cb700sc. The "s"
Posts: 1961

Join Date: Aug, 2008


Life is short. Eat dessert first.




Ignore
« Reply #2 on: December 05, 2010, 02:39:36 PM »

Looks about normal to me.
+1, I went and checked mine and it has almost identical movement.
Logged

I'd rather be riding my blue '85 (700s)
  Steve
n5tbu
Dedicated Member
****
Offline Offline

Gender: Male
Age: 53
Location: Opelousas,Louisiana
Posts: 745

Join Date: Mar, 2008





Ignore
« Reply #3 on: December 05, 2010, 03:31:46 PM »

Looks normal to me.
Logged

2003 750NH,red
1996 750NH,Ole Yella
2008 CRF230L,featherweight
BAMBY
Contributing Member
***
Offline Offline

Gender: Male
Age: 19
Location: Naperville, IL
Bike: 1984 CB700SC NIGHTHAWK S
Posts: 149

Join Date: Jul, 2010





Ignore
« Reply #4 on: December 05, 2010, 08:44:54 PM »

Exact same as my 84 has in terms of driveline lash... i think all of em are that way...

On a side note, NicholasDM:
When you bought your progressive shocks, did they come with the actual springs? or did you have to order the springs separate? How did you get the 2 separate springs with different rates (blue/black springs) on each shock like that?
dont mean to thread jack, pm me if ya like...
Logged
Option13
Senior Member
*****
Offline Offline

Gender: Male
Location: Richmond, VA
Bike: 1984 CB650 Nighthawk
Posts: 3246

Join Date: Jun, 2010





Ignore
« Reply #5 on: December 05, 2010, 09:36:43 PM »

Ohh, what kind of shocks?


Yeah, the lash is about normal.
Logged

'84 650 - "Naia" | DDM HID | 700S Rotors | SS Brake Lines
fishmeister
Guest

« Reply #6 on: December 05, 2010, 10:59:52 PM »

You can actually check it with a dial caliper through the gear lube hole. Directly on the tooth.

Backlash at assembly should be .003-.007
Service limit is .027

If it's over that the ring gear spacer will require a grind.
Logged
NicholasDM Topic starter
Contributing Member
***
Offline Offline

Bike: Nighthawk
Posts: 126

Join Date: Dec, 2010




Ignore
« Reply #7 on: December 07, 2010, 08:11:52 AM »

Looks about normal to me.

Thanks.
Logged
NicholasDM Topic starter
Contributing Member
***
Offline Offline

Bike: Nighthawk
Posts: 126

Join Date: Dec, 2010




Ignore
« Reply #8 on: December 07, 2010, 08:13:03 AM »

Exact same as my 84 has in terms of driveline lash... i think all of em are that way...

On a side note, NicholasDM:
When you bought your progressive shocks, did they come with the actual springs? or did you have to order the springs separate? How did you get the 2 separate springs with different rates (blue/black springs) on each shock like that?
dont mean to thread jack, pm me if ya like...

The rear shocks came with the bike unfortunately so I don't know much about how they come "stock" when you buy a new set.
Logged
NicholasDM Topic starter
Contributing Member
***
Offline Offline

Bike: Nighthawk
Posts: 126

Join Date: Dec, 2010




Ignore
« Reply #9 on: December 07, 2010, 08:13:51 AM »

Ohh, what kind of shocks?


Yeah, the lash is about normal.

Progressive shocks. Not sure what model though. They came with the bike.
Logged
NicholasDM Topic starter
Contributing Member
***
Offline Offline

Bike: Nighthawk
Posts: 126

Join Date: Dec, 2010




Ignore
« Reply #10 on: December 07, 2010, 08:15:12 AM »

You can actually check it with a dial caliper through the gear lube hole. Directly on the tooth.

Backlash at assembly should be .003-.007
Service limit is .027

If it's over that the ring gear spacer will require a grind.

I may break out my caliper and try that, but everyone says it's about normal so it looks like it's something I'll have to get used to.
Logged
BAMBY
Contributing Member
***
Offline Offline

Gender: Male
Age: 19
Location: Naperville, IL
Bike: 1984 CB700SC NIGHTHAWK S
Posts: 149

Join Date: Jul, 2010





Ignore
« Reply #11 on: December 10, 2010, 06:03:20 AM »

I think the key here, is to keep the rear wheel under power  naughty that way, there are no worries about lash... hehehe
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Copyright© 2008 - 2012 Nighthawk-Forums.com
All Rights Reserved
Powered by MySQL Powered by PHP Powered by SMF 1.1.16 | SMF © 2011, Simple Machines | Sitemap Valid XHTML 1.0! Valid CSS!