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Old 12-16-2009, 03:24 PM   #1
nervoptik
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NEAS on 87-88 1100 forks help

Hi there,
Is there any way to test that the NEAS units are working properly ?
I've searched google long time before asking this, and there are not so much about it.
I know that when I break the front with ignition on, some relay makes a click, but that's all ... looks no difference to me when I'm pushing the fork down with power on or off. I've checked the wires between NEAS units and relay ... seams to be ok.
Is there a way to check their functionality ?
Thanks .

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Old 12-16-2009, 04:51 PM   #2
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Re: NEAS on 87-88 1100 forks help

Mine feels different when pushing the front end down and up.
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Old 12-16-2009, 05:23 PM   #3
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Re: NEAS on 87-88 1100 forks help

neas working when you drive
and when you BRAKE with FRONT brake...........
otherwise you cannot feal really difference.......
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Old 12-16-2009, 05:34 PM   #4
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by ghostrider.1127 View Post
neas working when you drive
and when you BRAKE with FRONT brake...........
otherwise you cannot feal really difference.......
Yeah .. thanks, that's what i've wrote ... but the question is if there is a way to test them (electronically or any other way then pushing the fork)
Thanks.
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Old 12-16-2009, 05:46 PM   #5
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Re: NEAS on 87-88 1100 forks help

disconnect the neas lead wire couplers,right and left,from neas units
check the solenodicoil for "open","ground" and ohmic resistence.
the solenoidis in good conditions if the resistance is as follow 5.4-8 OHM

from dealer manual
(maybe you can find one )
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Old 12-16-2009, 10:06 PM   #6
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Re: NEAS on 87-88 1100 forks help

I guess you could test it with a tie-wrap around the inner fork tube. Slide it against the bottom tube, ride 60 and use the front brake. Measure the distance between the tie-wrap and the top of the bottom leg. Then do the same thing with the neas wiring disconnected. Compare measurements. Might be advisible to place something between the brake lever and the handlebar, so you know you pull the lever the same distance.
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Old 12-16-2009, 10:16 PM   #7
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by ghostrider.1127 View Post
disconnect the neas lead wire couplers,right and left,from neas units
check the solenodicoil for "open","ground" and ohmic resistence.
the solenoidis in good conditions if the resistance is as follow 5.4-8 OHM

from dealer manual
(maybe you can find one )

I had two sets, so I put 12V across each one (all 4)and each one buzzed. That is about all I can say to confirm the electrical is working. The resistance test would do about the same but wanted to hear something mechanical when activated.

FYI they were not mounted.
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Old 12-17-2009, 02:18 AM   #8
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Re: NEAS on 87-88 1100 forks help

I often wondered if mine worked too. After unplugging them and riding the bike, the bike dives hard when braking. Plugged them back in
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Old 12-17-2009, 03:05 AM   #9
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by posplayr View Post
I had two sets, so I put 12V across each one (all 4)and each one buzzed. That is about all I can say to confirm the electrical is working. The resistance test would do about the same but wanted to hear something mechanical when activated.

FYI they were not mounted.
I tried to to the same, but not to put 12v on them, just break and listen for any noise on them ... nothing ...
I'll try to do like ghostrider.1127 says, check if the resistance is between 5.4-8 OHM, also I'll try to do as GertRam, to measure the distance ... I was doing the same, but I just appreciate the distance and the stiffness ... and looked the same.
I also have to say that one tube is leaking ... so measurement may be not accurate.
Thanks guys! I'll keep you posted about this in a couple of days.
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Old 12-17-2009, 03:10 AM   #10
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by rogerlee View Post
I often wondered if mine worked too. After unplugging them and riding the bike, the bike dives hard when braking. Plugged them back in
Surprised to hear that, a lot of people disconnect and leave them.
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Old 12-17-2009, 05:10 PM   #11
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by nervoptik View Post
I tried to to the same, but not to put 12v on them, just break and listen for any noise on them ... nothing ...
I'll try to do like ghostrider.1127 says, check if the resistance is between 5.4-8 OHM, also I'll try to do as GertRam, to measure the distance ... I was doing the same, but I just appreciate the distance and the stiffness ... and looked the same.
I also have to say that one tube is leaking ... so measurement may be not accurate.
Thanks guys! I'll keep you posted about this in a couple of days.
Disconnected in your hand it is a light buzz. If it were mounted the forks/tire might absorb so much of the vibration till you dont hear anything unless you put your tooth to it.
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Old 06-14-2010, 05:32 PM   #12
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Re: NEAS on 87-88 1100 forks help

My 86 750 is missing the relay for the NEAS Unit. Anyone tell me what kind of relay I need to get. Front end dives hard when braking.
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Old 06-14-2010, 05:55 PM   #13
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Re: NEAS on 87-88 1100 forks help

86 750 came without neas
maybe you have a limited ???

(sure isn t a 87 ???)
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Old 06-14-2010, 05:58 PM   #14
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by jaskat05 View Post
My 86 750 is missing the relay for the NEAS Unit. Anyone tell me what kind of relay I need to get. Front end dives hard when braking.
I thought the 750 was the inertia activated ones and not electronic.
At least all the 750's I have seen are that way
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Old 06-14-2010, 06:26 PM   #15
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Re: NEAS on 87-88 1100 forks help

87 in europe came with 41 mm fork and neas......
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Old 06-14-2010, 07:00 PM   #16
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by jaskat05 View Post
My 86 750 is missing the relay for the NEAS Unit. Anyone tell me what kind of relay I need to get. Front end dives hard when braking.
I am switching my front forks and brakes from an '87 1100. What relay would I need and is there a plug in the stock '86 750 wiring harness to plug it into? Or is there a power source that I can splice into?
Since the '86 750 LTD had the NEAS units stock, did the LTD model have a different wiring harness compared to the standard '86 750?
I know some of you GSXR gurus have the answers.
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Old 06-14-2010, 07:12 PM   #17
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Re: NEAS on 87-88 1100 forks help

you need rele , diode and few cm of cable......
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Old 06-14-2010, 07:19 PM   #18
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Re: NEAS on 87-88 1100 forks help

you have to modify the stock wiring to make it work
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Old 06-14-2010, 08:00 PM   #19
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Re: NEAS on 87-88 1100 forks help

Quote:
Originally Posted by ghostrider.1127 View Post
you need rele , diode and few cm of cable......
I was looking at that schematic and it seemed very strange. It finally occured to me what the diode was for.

Normally the brake lights are activated by wire "OR"ing the F and R brake light switches together on the low side (i.e. either gets grounded the brake lights go on)

With the NEAS, you want to power the NEAS when only the F brake is on so the diode is required to block the rear brakes from activating the NEAS. (note the relay is switching the NEAS low side)

I added a schematic
Attached Images
File Type: jpg NEAS.jpg (30.4 KB, 65 views)
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Old 06-14-2010, 08:07 PM   #20
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Re: NEAS on 87-88 1100 forks help

yes ,
also for this use i think is possible use a suzuki s slinghy diode (sidestand/neutral light)
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