unitrak service/exchange

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john
Posts: 3938
Joined: Wed Mar 26, 2014 6:48 pm

unitrak service/exchange

Postby john » Thu May 04, 2017 6:25 pm

When was the last time you serviced your unitrack linkage,?
It's not something that usually gets any attention unless the bike is undergoing a re-build,but, it "is" a service item, and, as such it should be stripped/inspected, part's re-placed as needed and re-greased at around every 15,000 mile's....call it every couple of years.
Left unloved, and the unitrak "will" seize up. This will affect the handling, as , a seized unitrak will have an adverse effect on the movement of the shock and swing arm.

This was a pin I removed from a members bike while doing a shock mod,
SV shock mod 019.JPG
With the new shock fitted, the suspension would only move around 5mm to 10mm up or down..the static sag was none existent. I had to remove that pin with a drift and 4Lb lump hammer, :o

So over all it pay's to keep on top of it.

The sleeve's (pin's) and bushes are not cheap though, a full set will set you back around £80 plus about another tenner for O ring's from GPZ Zone, or £75 plus a tenner for O rings direct from Kawasaki Cornwall...so we are pushing around the £80 to £90 mark. :o

Well, I'm now in a position to offer an overhauled unitrak service for members.

This will include a sonic cleaned and re-painted unitrak link complete with new bushes, sleeve's (pin's) and O ring's.

This what you would get,
A stripped unit,
Twin disc 14 013.jpg
Twin disc 14 014.jpg

Then sonic cleaned and painted,
Twin disc 14 015.jpg

Bushes...tailor made to each unit for a perfect fit....they do vary slightly depending on if the old unit has been seized and the bush has been turning within the unit.
unitrak + col's bushes 001.jpg
unitrak + col's bushes 002.jpg


Sleeve's (pin's), again, tailor made to suit each unit., and O ring's.
This is where I differ from OE.
I again machine the sleeve's to be a perfect fit from high grade/very hard wearing acetal. Because acetal will not rust this mean's that the possibility of the unit seizing is done away with.
indi unitrak 003.jpg

The sleeve's are then given a coat of lithium grease and the unit assembled ready for use.
indi unitrak 004.jpg

Unfortunately I can not find a supplier for the bolt's or dust seal's ...but I'm still looking in to that..so if you needed them you would have to purchase from GPZ Zone or Cornwall Kawasaki.

I'm looking at keeping 2 or 3 ready assembled unit's in stock which I will be offering to members for £58..inc postage. This will be on an exchange bassis..eg, once you have fitted the new one, you post me back your old one.

I've been using one of these on my bike and will go so far as to say they work as well, if not better than original.


If anyone is interested in this drop me a PM for detail's

John.

Martinj
Posts: 960
Joined: Fri Jan 08, 2016 8:18 pm
Location: Doncaster

Re: unitrak service/exchange

Postby Martinj » Sat May 06, 2017 8:47 pm

That is a very good price. I basically had to replace everything when I first got my gen 1. It was seized up & the pins badly corroded as in your pic.
Stripped my lads gen 2 down last year , not as bad but still needed parts that cost more than you are asking.
91 gpz500
79 cx500deluxe
Interceptor 650

john
Posts: 3938
Joined: Wed Mar 26, 2014 6:48 pm

Re: unitrak service/exchange

Postby john » Sat May 06, 2017 9:34 pm

Your right there Martin, part's are pretty expensive for these, plus, if you don't have everything on hand when you do them, there's the "down" time as well.
At least with one in hand it will only be a case of 1 out/1 in, :D .
I'm not out to make a fortune, just offer a service for a little "fag" money, :lol: :lol: ....plus it's an excuse to play with the lathe, :D

yorkie-col
Posts: 1584
Joined: Thu Feb 26, 2015 2:39 am

Re: unitrak service/exchange

Postby yorkie-col » Sat May 06, 2017 11:39 pm

just seen this :oops: :oops: good on you John get that lathe working. :lol: :lol: :lol: :lol:

if anyone is interested [seeing how Martin mentioned it] the cost of replacement for the rear suspension parts are as follows. exact cost from the dealers.

92055. "O" rings £1.69. x4 = £6.76.
92028 bush £11.51. x2 = £23.02.
92028A bush £11.55. x3 = £34.65.
92049 oil seal. £4.31 x2 = £8.62.
42036 sleeve. x1 =£7.92.
42036A sleeve. x1 =£11.78.
42036B sleeve x1 =£13.00.

total = £105.75.

current price copied from the web site. yeah go for it John :D :D :D

it also may be of interest to know that the gen 2 dog bones [swing arm end] use.
x2 92028 bushes,
x2 92055 "O" rings.
and x1 42036B sleeve.

the gen 1 dog bones [swing arm end] uses.
x2 42036 sleeves.
x2 92028B bushes
and x4 92055 "O" rings.

so the same parts are used for the swing arm ends of the dog bones. if you have the measurements for all the bushes, sleeves, and "O" rings you could make these also. [just a thought]

Col.

john
Posts: 3938
Joined: Wed Mar 26, 2014 6:48 pm

Re: unitrak service/exchange

Postby john » Mon May 08, 2017 9:01 pm

Like I say Col, they are a fair old price, :o

By the way, it's 6 O ring's needed. There should be 2 behind the dust seals.

O ring, Unitrak, GPZ 500S All models

A replacement O ring for the unitrak mounting bolts. This O ring is used on the front, rear, and trailing arm mounting bolts of the unitrak linkage arm. (Total 6) Used on all models. of GPZ 500S. Sold singly.


Price Inc VAT: £1.81 (£1.51 Excluding VAT at 20%)

yorkie-col
Posts: 1584
Joined: Thu Feb 26, 2015 2:39 am

Re: unitrak service/exchange

Postby yorkie-col » Mon May 08, 2017 9:36 pm

hi John.
I took the part numbers and prices straight off Camborne's web site. and it didn't show any O rings behind the oil seals on the centre bush, on the parts fisch. so I assumed it didn't have them. interesting. ;) ;) ;)

john
Posts: 3938
Joined: Wed Mar 26, 2014 6:48 pm

Re: unitrak service/exchange

Postby john » Sat May 20, 2017 1:52 pm

I took that pricing from the GPZ Zone site,
http://www.gpzzone.co.uk/acatalog/gpz50 ... g_arm.html

john
Posts: 3938
Joined: Wed Mar 26, 2014 6:48 pm

Re: unitrak service/exchange

Postby john » Fri Nov 10, 2017 9:16 pm

A bump on this,

I have 3 unit's in stock, ready for anyone doing a winter overhaul, ;)

prokartman
Posts: 24
Joined: Sun Feb 04, 2018 2:33 am

Re: unitrak service/exchange

Postby prokartman » Wed Feb 21, 2018 9:20 pm

Used John's unitrak exchange service , excellent product , very fast service and excellent value for money .
Comes highly recommended , many thanks .

john
Posts: 3938
Joined: Wed Mar 26, 2014 6:48 pm

Re: unitrak service/exchange

Postby john » Mon Feb 26, 2018 1:00 pm

Thanks for that Mark, glad you like it, :D


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