A forum for owners of Yamaha TTR250 trail and enduro bikes!

It's been a bit quiet on here lately so I hope you guys don't mind a bit of repitition. You never know, there might be new members that might appreciate this sort of stuff 

The loom is from my abandoned 350 project bike. I have sold the 325 engine from my blue TTR and will build and install the 350 engine in that. This means that I have a frame and loads of bits that are now spare. I will gradually work through them and pass them over to Steve to sell in the Totally TTRs shop.

The loom was in good condition and had just a few tatty bits of insulation that needed tidying up but also (a) a corroded terminal in the connector block that goes to the ignition switch and (b) the previous owner had broken the digital speedo head so had installed an after-market one and had cut the live cable from the speedo connector to use with the new speedo.

I tackled the ignition switch connector first. As for nearly all the connectors on the TTR250s, the terminals are held in place in the connector blocks by spring tabs. To remove a terminal it is first necessary to find a small screwdriver or similar to depress the tab allowing the terminal to be pulled out from the wire side.

Because I struggle with this sort of job at times, I bought a tool many years ago with a variety of ends that will fit most terminal tabs - the tool is shown in the photos.

What happens with the positive terminal in this connector block is that it can get quite hot and, over time, corrodes as in this case.

The old and new terminals.

New terminal crimped to the wire.

These are the tools I used.

Job done!

The last job to do on the loom was to remove the old positive terminal from the speedo connector, fit a new terminal to the positive (red) wire and refit it into the connector block. This one was a lot easier to do 

This picture shows the wire with the new terminal and the blue speedo connector block. All three photos show the tab (or tang) on the terminal that holds the terminal in place in the connector block.

New and old terminals.

New terminal fitted before the wire/terminal is fitted back into the connector block. 

The loom is now ready to pass over to Steve 

Brian