Recent content by jay woo

I have had a look at the link but the pdf is not for the fuel injected bike. I have a diagram but it is not labelled just numbers. I can guess based on another diagram I have using the wire colours and the pictures some of the pins. I know there is a diagram in the thai manual as I have a...

I am chacing a wiring diagram for 135i that is in english. Is one available.

New CDI arrived today, started pulling it apart. I am only drilling to expose the pads that are required to read and write to the chip. I have cut two holes so far but am hopping that in the future I will only have to cut one hole. forgot about the water absorbing stuff put in the blue silicon...

Cleaned up my soldering. Will not solder next time while drinking beer and in bad light. Checked power and it was showing 5 volts at the chip. Need to get some more connectors to continue trying to get a read. Should be able to get some more tomorrow. So may have a better update tomorrow night.

Just ordered another CDI will hopefully arrive in a week and I will try not screw up the soldering on this CDI.

I had a quick go with the new programmer tonight but no luck. I will have a better look tomorrow night it maybe just something simple. I hope I haven't damaged anything with my bad soldering ability. If I have damaged something I will have to order a new CDI or wait untill I go on holiday to...

Will let you know if I need help. As with most things the first few steps are easiest and the last few are the hardest.

I will have a better look at the programming documents tonight as the atmega 88 has a built in bootloader area the Atmega 48 dosen't. The Atmega 48 is quite different in the programming methods available. I am just hopping yamha didn't set any of the lock bits to stop reading or programming...

forgot to check the programmer on ebay I brougt. mega48 dosen't support Jtag so I will have to order a differnt programmer. Th picture is probable to small to see but the SPI has pads next to the chip.

This wekend I hope to have a play and try to get a dump from the atmega 48. I am sure how easy it will be.

as promised. It is a low quality image. The rx, tx , 5v and ground connections can be seen next to the chip

I need to read the chip before I attempt to program the chip. Most cables are just write not read.

yes with a PC. ordered a cable from china. now just have to wait the 1-2 months for it to arrive. Hopefully it will work as it was only about $20-25 us dollars.

I finally got a yamaha cdi. I have managed to hack the cdi to pieces. It runs a atmel atmega48 processor. I was hopping the free pin was used for communicating with the processor but it looks like it is not. It looks like it would be possible to modify the advance curve in the cdi but you would...

you must use the clay method, the amount of clearance required will depend on things like head gaskets if the head or case have been skimmed. Some other things to consider are the valves , what valve springs are used.