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Re: Throttle body injection on GL 1000
Posted: Sun Mar 17, 2013 12:46 pm
by sunnbobb
Nice clean work. Hope to see more.
Re: Throttle body injection on GL 1000
Posted: Sat Jul 20, 2013 2:36 pm
by gswoo
Ditto.
Any updates?
Re: Throttle body injection on GL 1000
Posted: Sat May 27, 2017 4:44 am
by Don_Karlos
Hello everybody,
I apologize for not writing a long time! I was very sick and had heart surgery. New pipes where put in and now I feel way better

I wanted to let you know, that I started working on the system again. I built the fuel rails yesterday and pictures will follow. Since one fellow here started a thread with a quite similar approach I'm really interested in how it worked out.
Stay healthy
Karl
Re: Throttle body injection on GL 1000
Posted: Sat May 27, 2017 7:23 am
by Old Fogey
Glad you are feeling better. I liked the look of your set-up and wondered what had happened to you.
Re: Throttle body injection on GL 1000
Posted: Sat May 27, 2017 7:51 am
by Don_Karlos
Hi,
pictures as promised. Fuel rails are 12mm with G1/4 threads for hose connectors.
Tbc....
Greetings
Karl
Re: Throttle body injection on GL 1000
Posted: Sat May 27, 2017 7:55 am
by Don_Karlos
Parallel I'm working on a TBI system like the one Toehead built. I still have like many others this ebay manifold and I was wondering if it could be converted in something of use:-)
Karl
Re: Throttle body injection on GL 1000
Posted: Tue May 30, 2017 4:01 am
by sunnbobb
Glad to see you back!
Re: Throttle body injection on GL 1000
Posted: Thu Jun 01, 2017 7:22 am
by Toehead
Very cool!
Re: Throttle body injection on GL 1000
Posted: Thu Jun 01, 2017 12:56 pm
by Don_Karlos
Thanks for taking me back:-) I worked a bit on all projects and since I found that GL1200 SEI solution cool as well (thanks to thesteve and socrace for all the work and advice in there posts!!!) and all sensors and fuel systems are the same I decided to try that route as well! Today I cut 15mm out of the plenum and TIG welded it together. It doesn't weld to good but after a little grinding it is presentable. For the fuel I decided to mill a new cover for the place where the fuel sensor sits and to put two fuel lines in that place- I'll post pictures later. As a fuel pump I'll use a Ford Fiesta JAS pump which sits in the tank.
Does anybody allready have a base mape for a megasquirt 2 for the SEI solution or at least the parameters of the system? Advice is appreciated!!
Greetings
Karl
Welding helmet is mine from the US. I bought it when I lived in Charleston, SC! Should have stay there.....
Re: Throttle body injection on GL 1000
Posted: Sat Jun 03, 2017 12:38 pm
by Don_Karlos
Hi,
I took the exhaust system off and decided where the O2 Sensor will be positioned. I will weld the bung in the right side header 3" before the connection to the muffler. I also did the cam belt tensioner mod- came out pretty good! No more wistling from the old tensioners!
Greetings
Karl
Re: Throttle body injection on GL 1000
Posted: Sat Jun 03, 2017 12:59 pm
by Toehead
Looking good! You'll like the tensioner mod. It's a big improvement over the old stock ones.
Re: Throttle body injection on GL 1000
Posted: Sat Jun 03, 2017 2:15 pm
by Rednaxs60
Project is looking good. Did the timing belt tensioner mod 18 months ago and have not looked back.
You mention having found the SEi (have an '85 LTD and the FI systems are the same) information, but these bikes do not use an air sensor. Started a thread a while back on another forum regarding looking into what upgrades/improvements can be made to the LTD/SEi FI system. The only part in the system that I can determine that would benefit from an upgrade/improvement would be the ECU. There is really no way to change what is there.
Look forward to following your project and learning from it as well.
Cheers
Re: Throttle body injection on GL 1000
Posted: Sun Jun 04, 2017 5:45 am
by Don_Karlos
Hi,
just did a little drilling and welding:-) Bung is mounted now it gets back in the bike.
Greetings
Karl
Re: Throttle body injection on GL 1000
Posted: Sun Jun 04, 2017 9:51 am
by Don_Karlos
Hi,
Muffler and headers are back on the bike.
Sensor fits perfectly! From my point of view the best place for it. The position is about 50mm from the muffler edge to the middle of the bung. 40mm would be better- in the header there is a devider which splits it in two chambers for each cylinder and- guess- it ends at about 50mm before the end:-) My Drill bit caught the end of it and lost on the last mm a tooth...
I think it looks good and will work.
Greetings
Karl
Re: Throttle body injection on GL 1000
Posted: Sun Jun 04, 2017 12:46 pm
by Toehead
I agree... That's about where I put mine as well. The only thing I can think of is that I don't believe that those sensors are supposed to be mounted with the body "downhill" of the exhaust as they collect condensate.There may be an installation guide that can confirm or refute that.
Edit, like this:
