Exhaust removal tips please...

[Gecko]

Richie
if you have BMW panniers take care they don't melt with the laser fitted. The chip helps cool the exhaust gasses to a level where melting isn't an issue but I have heard (not seen) that the laser runs very hot without the chip so keep an eye on it until you are sure it's not a problem. If it is then fit some heat reflective foil on the inside curve of the pannier to deflect the heat away from the plastic - you should be alright then without the chip.
Looks nice How's it sound ?

 

[richie]

Believe it or not I have not ridden it yet. Fitted last night but today the kids have a day off school so I am looking after the youngest whilst my wife goes to Bruxelles with the other. Tomorrow I'll try it out. I just hope that 1. It is not too loud and 2. It does not backfire too much on overrun.

Anyway at tick over it sounds very nice.. Especially compared to the electric motor sound made by the original.

You can hear it here

 

[Gecko]

Is it just the end can or do you have the front silencer lump too ? I have a remus but with the front silencer and it's quite mellow . MiGSel has no front slencer and it makes ears bleed ...either way I'm sure you'll find out soon

 

[richie]

One tube through to the end can... I'll ride it in the morning and report...

 

[franco]

Clean....

Richie....you sure that's the same exhaust. Like Ferg says....wayyyy tooo clean

 

[franco]

Noise

Richie, the noise isn't too bad on the move. If you really wind it on, it's 'fruity', but certainly not ear splitting. Though having been to a few Motorhead gigs, maybe my hearing isn't up to much I used to do an early shift in London, and used the bike every day without the neighbours complaining, so it couldn't have been that bad.
I've a mate in London who had the same pipe, but without the chip fitted. He ran the panniers, and never had a problem, so didn't seem to make any difference in the exhaust temperature. The performance of the two bikes was pretty similar too, but he seemed to use more petrol. Whether that was down to me having the chip, or the fact that he was a stone heavier is up for debate...enjoy...certainly a vast improvement over the sound and performance of the original, and a useful saving in weight too...

Rob

 

[ferguscawley]

Richie

Does your bike have the lambda probe or not ?. If you are to fit a chip and your bike has the lambda probe in the exhaust, then you will need to fit the CO potentiometer.

I have a friend who is selling a Laser chip if you are interested. He also has the CO potentiometer for sale if you need it. He removed these from the bike when selling as the new owner just wanted a standard GS.

I rode his bike with the pipe and chip fitted and it was awesome. It had more mid-range than mine (and mine is quite good).

If you are interested let me know. I'm sure that the price would be very very reasonable.

All the best

Ferg

 

[richie]

Richie

Does your bike have the lambda probe or not ?. If you are to fit a chip and your bike has the lambda probe in the exhaust, then you will need to fit the CO potentiometer.

Ferg is this in Gaelic or double dutch or what. I have a standard 1994 GS. I removed the exhaust and put on the Lazer. From then on you are talking in a foreign language as far as I'm concerned. What is a Lambda probe and what tf is a potentiometer. If I remember correctly its wot Doc from back to the future used to get the delorean to time travel.

Seriously though I'll have to try the bike tomorrow as I still have not ridden it and I'll let you know. As already stated I am happy with the bikes performance anyhow, if I am looking for more it would be midrange rather than anything else.

Cheers, Richie

 

[BBB61]

Doesn't the 1100 have the CO potentiometer fitted as standard?

Bob

 

[richie]

Bob are you trying to wind me up....

Mine has a flux capacitor somewhere but I have not found it yet...

 

[BBB61]

Richie,

My old 1100 had a potentiometer at the rear of the bike and you could adjust the CO mix with this. The UK 1100 spec didn';t include a catalytic convertor.

Bob

 

[ferguscawley]

Lambda Probe

Richie

You obviously do not have the lambda probe fitted then. It is a probe about 4 inches long that screws into your old exhaust just in front of the catalytic convertor. (You cannot miss it !).
My friend's bike was a 1995 model, imported from germany and it had this probe fitted. All the other (UK) 94s I have seen have not had this fitted, yet they still did have a catalytic convertor. The potentiometer I mentioned is fitted to all bikes that do not have the lambda probe.
In your case, the laser chip I mentioned earlier would just plug straight in.

The lambda probe's function is to constantly monitor the CO (carbon monoxide) level in your exhaust and adjusts the fuelling accordingly - i.e. if the bike is running too rich, it cuts back on the amount of fuel being injected to achieve the optimum CO figure. Similarly, if the bike is running too lean (ie too much air and not enough fuel) then it adds more fuel etc etc.

On bikes without this probe, the CO value is set using a potentiometer, which is accessible from under the pillion seat on the right hand side of the bike. This is usually preset at the factory and does not need tampering with.

Just to put your mind at ease, there are no flux capacitors on a GS - well, none that I have seen anyway

Try the bike as is - if you feel the midrange needs some more oomph, then fit a chip. Otherwise leave it be .

Hope this clarifies things a wee bit.

All the best

Ferg

 

[franco]

Cat?

My bike was a 1994 model May 1994 in fact), and never had a cat fitted. I used the Laser pipe with a chip, and when driving a GS11 with the Laser and no chip, I never noticed any difference....
All sounds a bit technical to me.