Hi guys,
I'm new in this forum and I did not find a dedicated subject to post a first presentation message. So I will start here with a presentation of my "slightly modified" 535 GT
I own it since May 2020. This is not my only bike (I also own a Monster 1100s) but fell in love with the look of this retro new bike.
I bought it specifically to modify it to my taste and also as a past time during confinement days here in France
And I had a lot of time to do that so there is a huge number of modifications
The base is a 2017 Euro 4 model.
Some pictures will be more useful than a long boring text. You will probably guess what I am doing
This is the July version of my 535 :
And what I removed from the bike at that time
This summer I did a few thousands kilometers. It was great fun but I'm still searching for an engine with more character.
With the new confinement this winter it's time to work on that
Some before / after pictures :
Intake :
Exhaust :
Combustion chamber :
1.15 mm less height on the cylinder to have 1 mm squish band and a better CR :
As I don't have yet H's performance cam, did Mr Henshaw's trick to the intake camshaft :
And the mandatory Carberry plate :
Reassembly with a modified exhaust tube built from H's Inox exhaust pipe :
And the interesting detail welded on the tube behind the brake pedal
I used a cheap endoscope to check and adjust intake tract alignment :
It's alive and (not !) clicking
Work remain to be done on the ECU.
That's a lot of wires to install under the seat !
Done ! I added a switch to the right handle bar to command some feature on the PC5 (at the moment : Autotune On/Off)
Compression ratio looks good
(not sure if the reading is correct, CR looks suspiciously high given what I have done to the cylinder. I thought it would be 9.3 bars and it is a little more than 10.5 bars...)
Time to ride the thing to check everything is OK (it was 4 days ago)... Yes it's good to ride again ! And the GT is pulling better than before
After the short run, check the spark plug which shows a nice color (not too visible on this picture).
PC5 is starting to generate the Trims from the Autotune/Wideband sensor. It's a really clever thing
I started with some conservative target AFR (13.6 to 13.2).
What remains to be done :
- I just received my ACE.derottone airbox kit (Yes I was reading this forum long before today
). The idea is really great
But I will probably install a different velocity stack as the one I received is different from 2016 model.
- I think I have found a Performance cam kit in a French RE forum
- riding the bike to set up a good PC5 map.
That was a long first post