Community of BMW K75 K100 K1 K1100 Indestructible Flying Brick Riders
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
This topic
This board
The Motobrick Workshop
Project Classic Motobricks
Project Custom Motobricks
Entire forum
Google
Bing
News:
Home
Posting Guidance
Repair Guidance
Parts Guidance
Photo Guidance
Search Guidance
DuckDuckGo Search
Google Search
Help
Search
Tags
Login
Register
MOTOBRICK.COM
»
TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K.
»
The Motobrick Workshop
»
K75........misfiring and no idle
« previous
next »
Print
Pages: [
1
]
Go Down
Author
Topic: K75........misfiring and no idle (Read 3896 times)
keith g
Motobrick Curious
Posts: 27
K75........misfiring and no idle
«
on:
January 27, 2015, 12:02:16 PM »
it started to misfire just before christmas put new plugs and wires on her but the problem is still there........i'm open to suggestions as to what may be the cause.....!!
Logged
UK
1985 K75c
TimTyler
Adrninistrator
^ Quintessential Motobricker
Posts: 1884
Re: K75........misfiring and no idle
«
Reply #1 on:
January 27, 2015, 12:09:30 PM »
My money is on "air leak".
Logged
keith g
Motobrick Curious
Posts: 27
Re: K75........misfiring and no idle
«
Reply #2 on:
January 28, 2015, 05:23:25 AM »
i was hoping it would be simpler than that....:)
but it is an '87 model and all original.......the inlet rubbers are def past there best......oh well......in the garage...pull her to bits...:(
Logged
UK
1985 K75c
Inge K.
^ Quintessential Motobricker
Posts: 1451
Re: K75........misfiring and no idle
«
Reply #3 on:
January 28, 2015, 05:37:40 AM »
Start With checking the crank ventilation hose......S shaped, at the rear end of the plenum chamber.
They have a rather short average lifetime.............
Logged
Norway
TimTyler
Adrninistrator
^ Quintessential Motobricker
Posts: 1884
Re: K75........misfiring and no idle
«
Reply #4 on:
January 28, 2015, 11:41:21 AM »
What Inge said.
Air leaks aren't necessarily expensive or hard to fix, and they can be easy to find with a spritz of carb cleaner.
You could also try replacing your fuel filter which might be clogged and you could check to see if there's a bunch of mice living in the airbox.
Logged
keith g
Motobrick Curious
Posts: 27
Re: K75........misfiring and no idle
«
Reply #5 on:
March 15, 2015, 05:10:29 PM »
Tim.......you were right.......airleak.......when i took the throttle bodies off,the centre inlet stub came with it...!!!,all new rubbers fitted,runs better than ever...!
Logged
UK
1985 K75c
Print
Pages: [
1
]
Go Up
« previous
next »
Tags:
MOTOBRICK.COM
»
TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K.
»
The Motobrick Workshop
»
K75........misfiring and no idle