Fork Spring upside down?

Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
Post Reply
Adderboy
Settled in member
Posts: 86
Joined: Sat Jan 08, 2011 9:27 am
Fork Spring upside down?

Post by Adderboy »

Hi All!
Have just stripped down my forks to replace the tubes and have noticed the springs are the opposite way up to that specified in the haynes manual, (with the more loose coils on the spring facing the ground) was just wondering if this is an error of whoever last stripped down the forks, or there is an advantage to them being this way up?
Cheers
A
User avatar
thunderace
Site Supporter
Site Supporter
Posts: 1584
Joined: Fri Sep 10, 2010 9:03 pm
Bike owned: R6, YZF600R
Location: Blackburn, Lancs.
Re: Fork Spring upside down?

Post by thunderace »

Tighter helix sits at the top on normal forks but at the bottom on upside-down forks :peace:
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.
Adderboy
Settled in member
Posts: 86
Joined: Sat Jan 08, 2011 9:27 am
Re: Fork Spring upside down?

Post by Adderboy »

Should have mentioned its for an NC30, late type fork

And thanks, this is why you cant blindly follow haynes manuals!!
magg
Senior Member
Posts: 1917
Joined: Mon Sep 20, 2010 11:55 pm
Bike owned: VFR400
Location: Blue Mountain NSW Australia
Re: Fork Spring upside down?

Post by magg »

I beg to differ, the factory manual says "install with tapered end facing down" which IMO means "install spring with its closer wound coils at the bottom", which is what the haynes manual says.
User avatar
thunderace
Site Supporter
Site Supporter
Posts: 1584
Joined: Fri Sep 10, 2010 9:03 pm
Bike owned: R6, YZF600R
Location: Blackburn, Lancs.
Re: Fork Spring upside down?

Post by thunderace »

Factory manual says the opposite to Haynes and I know who I prefer to believe :peace:
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.
Neosophist
Moderators
Moderators
Posts: 8172
Joined: Fri Jul 04, 2008 1:01 pm
Bike owned: CBR954
Re: Fork Spring upside down?

Post by Neosophist »

viewtopic.php?f=24&t=33867&p=243677

This was covered recently. Refer to this thread
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...
magg
Senior Member
Posts: 1917
Joined: Mon Sep 20, 2010 11:55 pm
Bike owned: VFR400
Location: Blue Mountain NSW Australia
Re: Fork Spring upside down?

Post by magg »

Bow to Neosophist, I should have read the Honda Common Service Manual first. Haynes is incorrect but one needs to know which end is tapered and then go by the Common Service Manual directions.
NZgatch
Settled in member
Posts: 26
Joined: Sun Jan 09, 2011 1:47 am
Re: Fork Spring upside down?

Post by NZgatch »

Tapered springs ? As in a smaller diameter at one end ?
magg
Senior Member
Posts: 1917
Joined: Mon Sep 20, 2010 11:55 pm
Bike owned: VFR400
Location: Blue Mountain NSW Australia
Re: Fork Spring upside down?

Post by magg »

Yes, after further consideration prompted by this post IMO the tapered end locates more precisely on the top of cartridge / damper rod. Any other opinions?
Adderboy
Settled in member
Posts: 86
Joined: Sat Jan 08, 2011 9:27 am
Re: Fork Spring upside down?

Post by Adderboy »

Well before i stripped them i was riding with the more spaced coils pointing down, and it seemed to ride fine, didn't notice any issues when braking hard, I'll just go with what i know and keep them that way when i rebuild them i reckon

Post Reply