Cylinder Head Temperature

More sensors. This time the CHT (Cylinder Head Temperature) sensor was next in line. The bike actually came with such sensor when new.
But now it was time to upgrade it more post millennium standard so the EFI system get the input it needs.
Autometer had a sensor that seemed to fit, so I ordered one from US.
When it arrived it was just what I have been looking for.
But the mounting hardware was not solved.
I made a aluminum spacer and than a nut with 1/8" NPT thread.
It paired up nicely with the stock hole in the rear cylinder head.

Size comparison

The nut made and ready for assembly

The final mount

Fuelrail - the end.

The Fuelrail didn't turn out like I wanted so another one was created, but this time I put much more love, time and effort. And now it turned out great.
A quick tour to get it zinc plated to protect it and give it the shine it deserve.

Fuelrail - the beginning.

This project became longer and more labor intensive than I hoped for.
I started with some square pipeing and bungs. Actually the square piping I had over from the dog cage project and the two bungs I made in my lathe.
And it started like this.

The main unit.

First job with the injection system was already made when the project went from Sportster to Bigtwin. Buying the EFI system.
I bought the system for the Sportster but when I ordered it I bought another wireharness. Just in case for the Bigtwin and that day came faster that expected.
I went for the DIY open source EFI system, Megasquirt.
This system have a quite large ECU so I went for the already assembled smaller version, Microsquirt.

The eighth winter 14/15

The eighth winter was originally intended for my new project, a custom Sportster build.
But things happens and friends pushed me in other directions.
So this winters lineup are for the old Shovelbagger:
# Completing the seat.
# "Noseart" on the fairing.
# And the main project, EFI.
It was time to take my old comrade in to the twenty first century with some Electronic Fuel Injection.
The EFI job have so many stages so each one makes a project of its own.
The updates will not always be in the right order either.

The Beltdrive saga with 48 tooth

So when the dogcage was done the beltdrive adventures continued.
The good folks at BDL sent me a .020 undersize 48 tooth frontpulley.
Sadly that didn´t solved the problem. The belt was still way to tense.
I even had to do two "clutch hub pushers" to get the rear hub on to the coned shaft, that´s how tense the belt was.

And change from 130 tooth belt to next step, 132 was not possible according to BDL.
Even if the 8mm pich was the same the tooth profile was not.
So if I had used such belt I have destroyed it quickly said BDL.
I took the problem in my own hands and checked the "tooth clearance" between the belt and the stock pulley.
It was some play there so put the stock 48 tooth pully in my lathe and took it down .040.
The .020 that the undersize pulley had plus another .020.

But no still no luck, the belt still was way to tense.

The dogcage

A dogcage?
Yes, life ain´t just motorcycles.
Finally the scratchbuilt cage was done. The frame I made of 20mm square tubing.
I even made the grid out of welding rods and jointed it with silicon bronze.

The little rascal in his new carhome.