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Garry H
08-04-11, 23:05
Bye Bye Fuel Injection and good riddance :hammer
I have just converted my 1100GS to carburetors and fair play what a difference
I have never been 100% happy with the way it ran ever since i first got it
But like everythink else about the bike
It now pulls cleanly from 25 MPH in top
You can ride it at walking pace in first without all the horrible snatching it used to have
It also seems to go better as well :augie
Some one must have rebuilt my gearbox when i was not looking cuz the gear change is so much smoother too :thumb
Infact it now rides like a big Airhead and thats fine by me :D

Here's a few pics

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40817271280x768.jpg

http://http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40817301280x768.jpg

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40817291280x768.jpg

The carbs fit on pretty well and look good too
I did a few mods to improve the fit
I made 2 spacer plates to move the carbs back a bit to clear the front suspension wishbone..
Otherwise you have to tip the left carb over from level to clear it

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40717191280x768.jpg

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40717111280x768.jpg

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40717101280x768.jpg

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40717201280x768.jpg

I also made 2 thin aluminium rings to step the back of the carbs up so they fit into the 1100 intake tubes properly

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40717151280x768.jpg

I have put the ECU in the bin and replaced it with a Pazon ignition

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P40717231280x768.jpg

I am at the moment designing a curcit to get the oil temperature gauge working correctly again

All in all a very worth while conversion

MattW
08-04-11, 23:15
Great stuff Gary :thumb2

Looks like it was always supposed to be that way.

I've read of a few people who've had Steve Scriminger convert their 1100's but it's good to read of someone DIY'ing it. There are a ton of questions I'd like to ask - I may bother you in the future :D

Great job.

roddy
09-04-11, 06:33
I've seen a few GS with this conversion and they always look good, like the way it was supposed to be :)
some smart metalwork there as well :thumb

even though if I'm being honest I've never understood the need to do in the first place ?

Timolgra
09-04-11, 08:57
Very nicely done Gary, shame it's not as straightforward for the 1150.

Welshman
09-04-11, 09:13
Very nicely done Gary, shame it's not as straightforward for the 1150.

Sorry to ask, but the engines are very similar, whats the big difference 110 to 1150?:confused:

Stewart H
09-04-11, 09:43
A very neat job :thumb2 I was lusting after this conversion last year when Kenny had his done, but being a tightwad the DIY route is far more attractive.

blues_bleu
09-04-11, 21:01
hey gary, i have got something to check out with you regards to the convertion.
i cannot seem to PM you, will you be able to email me (blues_bleu@yahoo.com.sg)
thanks alot!!!!

derby dave
09-04-11, 21:15
Gary that is a great conversion being an engineer i appreciate the time and effort involved:thumb:thumb

Garry H
10-04-11, 21:58
Been out for a 250 mile ride today for a good test
The bike is totally transformed
The power delivery is now completly snatch free in any gear
The amount of gear changes you need to do is dramatically reduced
It pulls like a train and is smoother everywhere
Fuel economy seems about the same too
This is one of the best mods i have done for ages

http://i168.photobucket.com/albums/u181/pbgaza/interesting/P41017361280x768.jpg

Kaister
11-04-11, 02:49
sounds like your fuel injection was'nt set up right - my 1100 used to go down to 1000 rpm in top and pull away cleanly enough.

spa1403
11-04-11, 06:04
hey gary, i have got something to check out with you regards to the convertion.
i cannot seem to PM you, will you be able to email me (blues_bleu@yahoo.com.sg)
thanks alot!!!!

Pay your money you tight git:D

Kenny
11-04-11, 13:06
Superb Gary...and as I've always said, an 'airhead on steroids' :)
Excellent engineering btw :clap ( My engineering tools are a bastard file and a paint scraper :D )
Definately one of the best mods that can be done to an 1100 :thumb2

http://i236.photobucket.com/albums/ff11/barnston/1310104.jpg

http://i236.photobucket.com/albums/ff11/barnston/131010.jpg

http://i236.photobucket.com/albums/ff11/barnston/IMG_3579.jpg

Garry H
17-04-11, 21:44
Oil temp gauge circuit now sorted installed and works fine

http://i168.photobucket.com/albums/u181/pbgaza/temp.jpg

Went for a spin today with a mate on his new toy..
And what a beauty she is :drool

http://i168.photobucket.com/albums/u181/pbgaza/P41717621600x1200.jpg

Trippy
17-04-11, 21:49
Very nice job.

For those who aren't as capable as you, how much does this cost to get Steve Scriminger to do it?

MattW
18-04-11, 06:19
Oil temp gauge circuit now sorted installed and works fine

http://i168.photobucket.com/albums/u181/pbgaza/temp.jpg

[/IMG]

Nice one Garry - did you use a microcontroller in the circuit or is it all analogue?

cheers
Matt

Kenny
18-04-11, 10:02
Gary, How did you get the oil temp guage to work...Sriminger was/is still working this out !! Be great to get mine up and showing as well :thumb2



Incidently, Scriminger charges 250 + vat for labour

Garry H
18-04-11, 22:47
Pm's replied to :thumb
To be honest sorting the temp gauge out took me longer than fitting the rest of the kit...
I am going to make a couple more to check the circuit out on a couple of other bikes ( because i calibrated mine for my bike ) and check it works ok
( i see no reason why it should not )...And take it from there

Garry H
20-06-11, 23:27
Just back from a 4500 mile ride down to Albania and back

http://i168.photobucket.com/albums/u181/pbgaza/SAM_01801600x1200.jpg


The bike ran spot on from sea level to about 7000 feet

http://i168.photobucket.com/albums/u181/pbgaza/SAM_81441600x1200.jpg

But over 8000 feet it was a tad on the rich side.. But still perfectly acceptable

http://i168.photobucket.com/albums/u181/pbgaza/SAM_81131600x1200.jpg

My oil temperature gauge mod worked perfect

http://i168.photobucket.com/albums/u181/pbgaza/P60201451600x1200.jpg

A pleasure to ride on gravel roads

http://i168.photobucket.com/albums/u181/pbgaza/SAM_00161600x1200.jpg

The only slight problem i had was when low on fuel a couple of times going up long steep inclines the syphon from the tank to the carbs was lost :blast

Just like running out of fuel..Pull over and blow down the breather tube to get the fuel flowing again

So the next mod is to fit a low pressure pump or use 2 feeds to the carbs and 2 taps like a airhead
Fuel economy was excellent i was in no rush and was getting not far short of 60 mpg
IMHO a well worthwhile mod

Kenny
21-06-11, 00:22
Hi Gary,

Hmmm...seems like the use of the OE bmw filter is at fault by holding an air lock when fuel gets low. I 'ran out of fuel' when recently balancing the carbs whilst forgetting to turn on the fuel tap:blast
Even removing the float bowls and filling them with petrol AND blowing into tank still proved fruitless until I physically poured petrol in to fill up the actual filter, then all was well.
I've just bought a larger narrower ( 8mm fuel pipe) plastic fuel filter ( will fit 1000cc Jap bikes etc )which hopefully ( if I can fit it vertically ) will sort out this minor blemish on an otherwise thoroughley recommended conversion.

Looks like you had a great holiday :thumb2

MattW
21-06-11, 06:33
Nice one Garry :thumb2

Garry H
20-05-13, 21:33
2 years later :D
I still have the bike :aidan
It has been excellent with the carb mod in every way :thumb
A couple of weeks ago

http://i168.photobucket.com/albums/u181/pbgaza/1100_zps524b8c35.jpg (http://s168.photobucket.com/user/pbgaza/media/1100_zps524b8c35.jpg.html)

MattW
21-05-13, 06:27
Good to hear GarRy :thumb

I've been toying with the idea of this mod for years - do you / would you consider sharing (or need selling) how you did the temp gauge circuit?

Cheers
Matt

Puffin
24-05-13, 07:18
That is excellent Gary :cool: in the end how did you fix the low fuel syphon problem !

Garry H
31-05-13, 21:22
That is excellent Gary :cool: in the end how did you fix the low fuel syphon problem !

I used the link pipe on the adventure tank and a T piece at the lowest point
Have run it to within 4 litres of empty with no problems
I still think i will alter it at some time to the same layout as a R100GS
Thats will work for sure

Teamin
14-06-13, 22:05
I used the link pipe on the adventure tank and a T piece at the lowest point
Have run it to within 4 litres of empty with no problems
I still think i will alter it at some time to the same layout as a R100GS
Thats will work for sure

I have a carbed 1100 with an adventure tank with the T piece in the link pipe. It suffers from fuel starvation at about 140miles from a full tank. Then if the tank is full and I horse it on it shows similar signs. I am wondering if it is the fuel filter creating a bottle neck. ( smaller glass type fitted at present) what type of filter have you fitted and have you had any problems like this?

Anyone any ideas?

Garry H
16-08-13, 08:32
I use a small car filter on mine
I tried a low pressure pump but had problems with flooding the carbs when the tank was full. A pressure regulator should have sorted it but i didn't have one handy to try
I have found that the way you route the pipe from the pick up point to the carbs makes a big difference
By a bit of trial and error i have now got mine so it will use to within 2ltr of empty so i have left it at that
Route the pipes like on a R100GSPD would work for sure.
And that was what i was going to do but i am happy with the setup i have now

Bob_Johnson
16-08-13, 14:52
Beautiful conversion - and beautiful pics....

All the best,

Bob Johnson
AZ, USA

container
18-08-13, 22:12
Damit. Having all the problems I have now with the electronics ... I should have done this 2 months ago and have a bike.

Any good DIY resources on how to do this from noob level?
(ok, I'll google)

Manslag
12-12-13, 10:26
Hi Gary
I've also done the carb conversion, but being a non engineer I've ended up with the carbs the wrong way round due to the L hand one fouling the suspension. Steve Scrimminger is as usual very busy. Would you be interested in making me up a pair of your alloy spacers as I don't have the skills to do it myself? I'm happy to pay up front at whatever cost you see fit.
Many thanks
Pete aka "manslag"

davegs
12-12-13, 11:50
hey gary, i have got something to check out with you regards to the convertion.
i cannot seem to PM you, will you be able to email me (blues_bleu@yahoo.com.sg)
thanks alot!!!!

You can't PM him ,as your not a subscriber, pay yopur 12 and all will be well.

argos
14-12-13, 12:17
if you get a couple of inlet stubs secondhand its easy to cut the rubber part off leaving you the plastic part and the o ring,smear of sealant and youre sorted,clearance is fine,15000 miles no probs,cheers

MATKAT
09-04-15, 16:17
Just as an update to this thread from when Gaz did this conversion, I am now the new owner of this amazing oilhead. Those of you who know me are aware I have had many GS's:aidan I have to say that apart from my normal problem due to being vertically challenged this really is an outstanding ride. It is silky smooth, pulls like a train and so far in the first 300 mile bash round Wales it has given me great grin factor. Just like an Airhead~~~~ on steroids.
Just need to change the Mitas 07 tyres which are great but need new one's after 10ooo miles apparently and still tread left even if a bit squared off. Add the Ohlins, Sargent seats, Gaz modified boxes, MRA screen etc etc and you have a crackin' bike.
Just needs a Givi monokey topbox (does anyone have one in the shed??) and it is good to go anywhere. Dent here we come:blagblah

MATKAT
26-07-15, 11:28
A bump to the top for this thread, as sadly this wonderful bike has to go due to my short legs and knackered shoulder...😞😩
There is a R100R out there which is what I am looking for👀

MATKAT
26-07-15, 13:21
Ok, to save anymore folks asking. Genuine reluctant sale. Combine my 28" inside leg a knackered shoulder and my fast approaching retirement age I have to concede defeat and let it go. Anyone who is a long time GSER will know that GaryH is a wizard on these bikes, acknowledged in this original thread. A one off bike which would cost an arm and a leg to convert by Scriminger (and not as well)
Last Mot May 16(no advisories). New Mitas 07 tyres just fitted. 56k miles all mot's. GaryH owned it for 10 years. Always covered in acf50 never used in Winter. Superb carb conversion, this bike runs incredibly well.
Adventure tank (qr fixings) and 1150 hand guards, Wunderlich engine bars, MRA screen, mudguard extender, Hella fogs /driving lamps(switch in indicator switch), up and back bar risers, TT rear brake extender, Sargent seats, Ohlins rear shock ( rebuilt 3k miles ago), Odyssey battery, Alpos boxes on Givi frames (quick release with typical GaryH engineering plastics mounts), Givi top box.OE tank bag.
Includes spare custom made throttle cables, OE seats and screen.
Ready to ride anywhere.
3k firm.
R100R taken p/x as that is what I want to downsize too.��

chad
26-07-15, 14:29
Very nicely done Gary, shame it's not as straightforward for the 1150.

ive a 99 1150 engine stowed away in my garage with this very same set up that ran sweet :cool:

:D for a project some years ago but ive jut not the time to do anything with it , if anybody fancys it give us a shout i need to make some room back here:blast

MATKAT
26-07-15, 14:34
Ok, to save anymore folks asking. Genuine reluctant sale. Combine my 28" inside leg a knackered shoulder and my fast approaching retirement age I have to concede defeat and let it go. Anyone who is a long time GSER will know that GaryH is a wizard on these bikes, acknowledged in this original thread. A one off bike which would cost an arm and a leg to convert by Scriminger (and not as well)
Last Mot May 16(no advisories). New Mitas 07 tyres just fitted. 56k miles all mot's. GaryH owned it for 10 years. Always covered in acf50 never used in Winter. Superb carb conversion, this bike runs incredibly well.
Adventure tank (qr fixings) and 1150 hand guards, Wunderlich engine bars, MRA screen, mudguard extender, Hella fogs /driving lamps(switch in indicator switch), up and back bar risers, TT rear brake extender, Sargent seats, Ohlins rear shock ( rebuilt 3k miles ago), Odyssey battery, Alpos boxes on Givi frames (quick release with typical GaryH engineering plastics mounts), Givi top box.OE tank bag.
Includes spare custom made throttle cables, OE seats and screen.
Ready to ride anywhere.
3k firm.
R100R taken p/x as that is what I want to downsize too.��

Oh mean to say first registered January 2000. Yes, really really one of the last and best�� condition reflects this it really cleans up well.

dubster
26-07-15, 14:56
ive a 99 1150 engine stowed away in my garage with this very same set up that ran sweet :cool:

:D for a project some years ago but ive jut not the time to do anything with it , if anybody fancys it give us a shout i need to make some room back here:blast

Hi Chad, would definitely be interested... have sent you a PM :thumb2

chad
26-07-15, 15:02
Hi Chad, would definitely be interested... have sent you a PM :thumb2

no sign of it yet , it might be stuck in the Ether :D:D

MATKAT
28-07-15, 15:17
Thanks to the interest shown in this bike, but I decided that I must be mad to part with this appreciating asset so it is going to stay in the shed.
After all choosing between an ISA and the 1100 was an easy choice:D:thumb2:rob
Of course I am ecstatic as regards my purchase of the R100R Mystic which is superb, just picked it up today:D:bounce1:bounce1:bounce1:bounce1