BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   Fuel Injection Relay Empty Fuel Injection Relay on Mon Mar 23, 2020 5:37 am

MartinW

MartinW
Life time member
Life time member


__________________________________________________
K75s Hybrid
    

2Back to top Go down   Fuel Injection Relay Empty Relay on Mon Mar 23, 2020 7:01 am

daveyson

daveyson
Platinum member
Platinum member
By the look of the picture, the power goes to 87 or 87a,  but bricks need power to both 87 pins at the same time.


__________________________________________________
11/1985 bmw k100rt (late model)  Vin. 0090567
    

3Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Mon Mar 23, 2020 7:40 am

Holister

Holister
Life time member
Life time member
I've bought a cheap starter relay from aliexpress a while back just to see what they were like. It was really really poor quality. At US$7.50 for 5 relays, you can bet they will be cheap quality and probably unreliable.
You can get a FI relay from Motorworks for about AU$25 +frt


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Fuel Injection Relay Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

4Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Mon Mar 23, 2020 7:58 am

Dai

Dai
Life time member
Life time member
Sorry Martin - that's a boggostandard changeover relay. Nothing to stop you using one; you just need to attach both green/red wires to pin 87. There's also a further problem in that the K relays are DIN 1 Type A standard i.e. pins 30 and 86 are reversed compared to DIN 2, so just about none of the modern relays are a drop fit.

If you (or anyone here) is worried about getting stranded with a knackered relay, just remember that. Unscrew the relay block, push out terminals 30 and 86, reverse them and drop in a modern relay. For the FI what you need is a Type B switching relay.

https://www.altecautomotive.co.uk/5-pin-automotive-type-12-volt-2-x-20a--relay-altry279495-09-3166-p.asp

If you're not sure what you're looking at, check the pin numbering. If there's a pin 87a then it's a changeover relay. If there's a pin 87b, it's an FI-type relay. If there are two pin 87 (no suffix) then both outputs are permanently connected together. A better idea IMO is to pre-empt any possible problem by doing the pin swap now and dropping in a set of modern relays.

As Hollister says, Chinese relays are crap. I have a suspicion that a lot of the cheap Chinese relays are ones that have failed their QA checks but have somehow managed to find the back door.


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

5Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Mon Mar 23, 2020 8:09 am

duck

duck
Life time member
Life time member
The factory relays are very very reliable and proven over time.

The one exception might be the low battery starter relay issue.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

6Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Mon Mar 23, 2020 3:41 pm

MartinW

MartinW
Life time member
Life time member
Thanks fellas I won't be going down that track. Boredom set in and I wandered off track. Fuel Injection Relay 161205 
Regards Martin.


__________________________________________________
K75s Hybrid
    

7Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Mon Mar 23, 2020 4:30 pm

charlie99

charlie99
VIP
VIP
@Dai wrote:
As Hollister says, Chinese relays are crap. I have a suspicion that a lot of the cheap Chinese relays are ones that have failed their QA checks but have somehow managed to find the back door.

far simpler than that dai ..the contacts are under rated by what appears to me a factor of 3x and just poor manufacture metallurgy standards , impurities are rife in almost anything from there  I have stories just about copper cables that would water the eyes of an lucas officianardo


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OFuel Injection Relay Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

8Back to top Go down   Fuel Injection Relay Empty Relays on Mon Mar 23, 2020 5:00 pm

redrockmania

redrockmania
Silver member
Silver member
Dammit Charlie - Even Joseph Lucas, "The Prince of Darkness" would reject such relays...although my first Ducati (a very early 860) had the most diabolical Italian wiring - crap insulation over terrible copper wire that oxidised due to impurities and oxygen contamination...and lets not talk about the electronics and switchgear...oh I could go on.

    

9Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Mon Mar 23, 2020 5:41 pm

Dai

Dai
Life time member
Life time member
@charlie99 wrote:far simpler than that dai ..the contacts are under rated by what appears to me a factor of 3x and just poor manufacture metallurgy standards , impurities are rife in almost anything from there  I have stories just about copper cables that would water the eyes of an lucas officianardo
They always quote inrush current and not steady state. A 40A Chinese relay is probably only safe for 10A steady state - if it works at all for very long.


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

10Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Tue Mar 24, 2020 2:26 am

charlie99

charlie99
VIP
VIP
@redrockmania wrote:Dammit Charlie - Even Joseph Lucas, "The Prince of Darkness" would reject such relays...although my first Ducati (a very early 860) had the most diabolical Italian wiring - crap insulation over terrible copper wire that oxidised due to impurities and oxygen contamination...and lets not talk about the electronics and switchgear...oh I could go on.

lol
then you could imagine my old duke   a mid 60s single ...  enough said


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OFuel Injection Relay Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

11Back to top Go down   Fuel Injection Relay Empty Re: Fuel Injection Relay on Tue Mar 24, 2020 4:02 am

Stumpy

Stumpy
Silver member
Silver member
My personal choice would be getting a European relay, I had a 1999 Suzuki burg an and the ice failed, I bought one from Belgium that had European components and it was a lot more stable.


__________________________________________________
BMW K100RT 0095857
    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum