Hi
I have a problem I need solving. with little or no specialist tooling.

I want to fit a lambda sensor to my motorcycle.
It is a 125 and the exhaust is chromed, thin steel . (ybr125 type)

I am fitting a Fuel injection kit and the sensor has to be about 3 to 6
inches from the head. screwed into the pipe.

I am wondering how to achieve this without going to an engineering shop
with all that entails.

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.
Any simple and workable suggestions?

Thanks in advance

Gary

On 11/09/2015 14:56, Gary wrote:
Hi
I have a problem I need solving. with little or no specialist tooling.

I want to fit a lambda sensor to my motorcycle.
It is a 125 and the exhaust is chromed, thin steel . (ybr125 type)

I am fitting a Fuel injection kit and the sensor has to be about 3 to 6
inches from the head. screwed into the pipe.

I am wondering how to achieve this without going to an engineering shop
with all that entails.

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.
Any simple and workable suggestions?

Thanks in advance

Gary

For the small amount of work it would take, welding a boss on has got to
be the most practical solution, assuming you can make the correct size
hole and clean up the plating, a decent (and friendly!) local garage
should be able to do it for beer tokens.

Also, is this a four stroke 125? Because an O2 sensor isn't going to
last very long (or at best will require frequent cleaning) on a 2-stoke...

On 11/09/2015 14:56, Gary wrote:

Any simple and workable suggestions?

One bodge I've been guilty of in the past is to find a bit of pipe
which already has the O2 sensor threaded hole and cut and splice it into
the existing pipe - though that might be quite tricky for the tiny pipe
a 125 has

On 11/09/2015 14:56, Gary wrote:

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.

Shouldn't keep replying to myself, but what do you know, such a thing
actually exists:
http://www.efi-parts.co.uk/index.php?productID=255

Not obvious how good a seal it makes on the pipe though...

In article ,
Gary wrote:
Hi
I have a problem I need solving. with little or no specialist tooling.

I want to fit a lambda sensor to my motorcycle.
It is a 125 and the exhaust is chromed, thin steel . (ybr125 type)

I am fitting a Fuel injection kit and the sensor has to be about 3 to 6
inches from the head. screwed into the pipe.

Is this a narrowband sensor?

I am wondering how to achieve this without going to an engineering shop
with all that entails.

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.
Any simple and workable suggestions?

Not really - as you probably know the usual way is to have a boss welded
into the pipe.

--
*It is easier to get older than it is to get wiser.

Dave Plowman London SW
To e-mail, change noise into sound.

On 11/09/2015 14:56, Gary wrote:
Hi
I have a problem I need solving. with little or no specialist tooling.

I want to fit a lambda sensor to my motorcycle.
It is a 125 and the exhaust is chromed, thin steel . (ybr125 type)

I am fitting a Fuel injection kit and the sensor has to be about 3 to 6
inches from the head. screwed into the pipe.

I am wondering how to achieve this without going to an engineering shop
with all that entails.

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.
Any simple and workable suggestions?

Thanks in advance

Gary

If you could find a Rivnut[1] with the right thread, you could maybe fit
that into the pipe. You'd have to check the temperature spec, though, to
make sure it would stand the hot exhaust gases ok.

[1]
http://www.bollhoff.co.uk/en/uk/fast...ogy/rivnut.php
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

On 11/09/2015 16:35, Lee wrote:
On 11/09/2015 14:56, Gary wrote:

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.

Shouldn't keep replying to myself, but what do you know, such a thing
actually exists:
http://www.efi-parts.co.uk/index.php?productID=255

Not obvious how good a seal it makes on the pipe though...
wow looks just like what i had in my head,thanks for that. not cheap
though . i will have to add to wish list. the kit has not arrived yet

On 9/12/2015 9:05 AM, Gary wrote:
On 11/09/2015 16:35, Lee wrote:
On 11/09/2015 14:56, Gary wrote:

I had thought about using a hose screw clamp and a nut with the correct
thread clamping to the pipe.

Shouldn't keep replying to myself, but what do you know, such a thing
actually exists:
http://www.efi-parts.co.uk/index.php?productID=255

Not obvious how good a seal it makes on the pipe though...
wow looks just like what i had in my head,thanks for that. not cheap
though . i will have to add to wish list. the kit has not arrived yet


OK now the kit has arrived and now the job of fitting it has become a task.

I am at a loss with a problem that may not even be a problem.

The throtle body is a flang type and the holes are orientated verticaly.
the carb mount is flange with the holes horisontal. is this a problem?
do you think there is a " this way up" requirement or are these things
not that fussy.

I have tried emailing the suppliers but not had an answer.

by the way I have ordered the clamp as above. my pipe is only 1.6 inch
so i will have to pad it out but better than getting it welded.(I hope).

Thanks in advance
Gary

In article ,
Gary wrote:
The throtle body is a flang type and the holes are orientated verticaly.
the carb mount is flange with the holes horisontal. is this a problem?
do you think there is a " this way up" requirement or are these things
not that fussy.

I doubt it makes any difference in running. But might make the linkage to
the throttle more tricky. With horizontal choke TBs, the spindle is
normally horizontal too.

--
*If you tell the truth, you don't have to remember anything.*

Dave Plowman London SW
To e-mail, change noise into sound.

On 21/09/2015 13:33, Dave Plowman (News) wrote:
In article ,
Gary wrote:
The throtle body is a flang type and the holes are orientated verticaly.
the carb mount is flange with the holes horisontal. is this a problem?
do you think there is a " this way up" requirement or are these things
not that fussy.
I doubt it makes any difference in running. But might make the linkage to
the throttle more tricky. With horizontal choke TBs, the spindle is
normally horizontal too.

I had not thought of that. The linkage is a cable so not an issue. I
have ordered a piece of plate ally and will endeavour to make a
converter plate. The suplyers are a bit ??? and do not answer English
very well.

In article ,
Gary wrote:
On 21/09/2015 13:33, Dave Plowman (News) wrote:
In article ,
Gary wrote:
The throtle body is a flang type and the holes are orientated
verticaly. the carb mount is flange with the holes horisontal. is
this a problem? do you think there is a " this way up" requirement
or are these things not that fussy.
I doubt it makes any difference in running. But might make the linkage
to the throttle more tricky. With horizontal choke TBs, the spindle is
normally horizontal too.

I had not thought of that. The linkage is a cable so not an issue. I
have ordered a piece of plate ally and will endeavour to make a
converter plate. The suplyers are a bit ??? and do not answer English
very well.

Not possible to drill new holes in the correct position? Or find a TB that
fits without mods?

If there is only one TB as you say the linkage might not be a problem if
cable operated. But if they were multiple, the wrong orientation might be.

--
*You never really learn to swear until you learn to drive *

Dave Plowman London SW
To e-mail, change noise into sound.