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Reliable Airhead
- Thread starter Ash
- Start date
Lol
Padmei
Registered user
Ok sorry I'm not that clever. 
Is that a fuel injection unit or some kind of cleverly homemade carb?
On second look - is it a diesel?????
Is that a fuel injection unit or some kind of cleverly homemade carb?
On second look - is it a diesel?????
Mr K
Registered user
There's nowt so queer as folk: Airhead owners fitting fuel injection on the one hand...and oilhead owners converting to carbs on the other.
Im converting my gs to Desmo valves safto.
That'l confuse 'em !
That'l confuse 'em !
The first question that pops into my head is 'why'?
Carbs work well, are reliable and don't depend on a bunch of computers and sensors to make them work
BM only fitted injection to the 1100 to get around emission regulations - they'd have fitted carbs if they could.
But leaving that aside, it's a nice engineering job - what are those throttle bodies off? It must have been a right job to size the injectors and get the fuel / ignition map right (I'd guess the ignition is controlled by the ECU as well?...). I wonder if it's open or closed loop control and where he found the space to fit the ECU and wiring? I also wonder whether he uses batch injection like oilheads or delivers the whole shot on the induction stroke?
Questions, questions....
Carbs work well, are reliable and don't depend on a bunch of computers and sensors to make them work
BM only fitted injection to the 1100 to get around emission regulations - they'd have fitted carbs if they could.
But leaving that aside, it's a nice engineering job - what are those throttle bodies off? It must have been a right job to size the injectors and get the fuel / ignition map right (I'd guess the ignition is controlled by the ECU as well?...). I wonder if it's open or closed loop control and where he found the space to fit the ECU and wiring? I also wonder whether he uses batch injection like oilheads or delivers the whole shot on the induction stroke?
Questions, questions....
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Just wondering if my oilhead 
is now an airhead 
as it has carbs and is aircooled 
is now an airhead as it has carbs and is aircooled Just wondering if my oilhead
I think it fails the crucial test.
Rob posted on here that a carbed oilhead would definitely not qualify for admission to a 'wee'kend
I think it fails the crucial test.
Rob posted on here that a carbed oilhead would definitely not qualify for admission to a 'wee'kend
It was the last desperate tactic to keep Kenny away
I seem to remember a few years ago a couple of injection kits on the market for airheads.
About as useful as the krauser 4 valve head kit that was also available
About as useful as the krauser 4 valve head kit that was also available
I seem to remember a few years ago a couple of injection kits on the market for airheads.
About as useful as the krauser 4 valve head kit that was also available
I agree with the Maestro, after having ridden and owned examples with both the above fitted...
as much use as TITS on a Bull....
IMHO of course
Ash I am impressed.... THIS MUST BE A FIRST...... No tits
What were you looking for
What were you looking for
Beemerboff
Registered user
The problem with injection is that there is no CV facility , so you just dont have the air flow at slower revs.
This isnt so much of a problem on a high reving engine, or with high pressure sequential injection, and modern and extremely complex electronics can mask the symptom, but a crude old system like that would have , err, fueling difficulties, under around 4000 revs.
This isnt so much of a problem on a high reving engine, or with high pressure sequential injection, and modern and extremely complex electronics can mask the symptom, but a crude old system like that would have , err, fueling difficulties, under around 4000 revs.
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