About to order a couple of sets of these.

https://www.aliexpress.com/i/32804772624.html

Was wondering if anybody else in Brisbane area was after some and I will add to order.

PM me if interested

Cheers Mick

You branching out into injector rebuilds now Mick? Excellent, you’ll be the “go to” man for that from now on. 

Regards

Dan

Not me. Taking them to 'Moto by Martin'  up at North Lakes.

He has an ultrasonic cleaner and harness set-up. I picked up a spare set of injectors along with a relay box, relays and wiring loom off gumtree. So going to clean and refurb these and the ones in my bike.

thats pretty cheap mick , good find !!!

US$1.89 with a $3.00 new user discount on orders over $4.00! They'll be paying me to buy them. I wonder how much the Uyghur 
re-education camp member earns to put these kits together...

Put me down for three sets 
Please mick

Mick could please get a set of four for me I'll put them in stock. It will save me chasing them. By the way it's Wombat Works.
Regards Martin.

So a bit of maths

Me 2
Martin 1
Matt 3

= 8 sets ordered ... I see numerals as being adjectival not absolutes.
 
A$35 ( got hit with GST) delivered by Nov 16. So $4.50ish a set delivered. Will let you know when/if they arrive.

I buy the set for the E32 V12 BMW sedan and get 3 sets for a K100

I tried to fit these injectors on my k100:
https://www.ebay.com/itm/4Hole-14LB-Fuel-Injectors-For-1983-1987-BMW-K100-Motorcycle-Disc-EV1-Set-of-4/254151923845?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20160323102634%26meid%3Da258dde97c484b9382aa804c4a0a18a4%26pid%3D100623%26rk%3D1%26rkt%3D5%26mehot%3Dlo%26sd%3D263162194522%26itm%3D254151923845%26pmt%3D1%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganic%26brand%3DOE%2B&_trksid=p2047675.c100623.m-1
Around 30$, cheap, rapid delivery.
It works great!

Two Wheels Better wrote:US$1.89 with a $3.00 new user discount on orders over $4.00! They'll be paying me to buy them. I wonder how much the Uyghur 
re-education camp member earns to put these kits together...

Ugh, that's some dark humor if ever there was....

Hello Jbt, do you still have that 30 USD injectors on your K 100 engine? How it behaves, can you tell something more, for example about cold start, consumption, high revs?
Thanks in advance

nino wrote:Hello Jbt, do you still have that 30 USD injectors on your K 100 engine? How it behaves, can you tell something more, for example about cold start, consumption, high revs?
Thanks in advance

Yes, I still do have them.
I can't tell if they improved anything, as I mounted these injectors on a K100 I bought damaged, and never rode it before.
But comparing to other K100 I own, it works much better. No cold start issue, no trouble reving, and a funny push at high revs. Nothing to compare to my other '85 k100 that seems empty and weak in comparison.
I've rode it about 500 km since the rebuild.
These injectors seem to be richer than the usual ones, with a larger debit.
All the fuel injection line is new, and the fuel pressure regulator is a bit tuned, it may also explain.
The only surprise is about the O ring looking more sticky than gummy, as slime.
I did not trust them, I don't like playing with fuel leaks, I changed them for OEM O rings.

Thanks for sharing infos. One more question. Did you measure consumption? Higher or same as original injectors? How did you tune fuel pressure regulator. Higher pressure?

I did not measure fuel consumption. This bike runs too rarely to bother about.
To enhance fuel pressure, the good old trick is to smash the bottom of the regulator. It preloads the internal spring, and the regulator opens at higher pressure.
But you also can change it for an adjustable presssure regulator.

I have adjustable fuel pressure regulator installed and adjusted on 3,2 bar instead 2,5. with old injectors. I tried with some chinese injectors Shunzi Liron(?) and it worked only on 0,5 bars with that adjustable FPR. To much fuel probably with standard pressure.
So I removed chinese and put old Bosch injectors.

3.2 is way too much IMHO.
2,8 is the max you can set without internal modifications (big bore, long opening camshaft, etc;)