Messages

hi again,

I have new points and condenser to go in,  but have lost my flywheel puller, so I am waiting for a new one to arrive and will post the result soon enough. I really hope it is one of the two.

cheers folks
les

I will persist in solving this problem, and then I will post what it was, as I don't think that happens enough, threads just seem to run dry and leave me wondering what cure was!

cheers for now
les

Dvsrd,

I will check the magnets when I pull the flywheel to fit the points/condenser. yes, it is just a one wire ignition. how do they re-magnetise them??

such a simple engine, I cannot believe that I cannot find what the problem is, I will end up changing the whole engine!

cheers
les

Me again,

definitely not fuel leaking into crank case, drained, stripped, tested everything, filled with fresh fuel. exactly same problem. tried a brand new coil, still the same.
I am now going to replace the points and condenser, and while the flywheel is off, I will have a look at that too.

I am hoping that a weak spark can appear as flooding.

cheers
les

if you look on the last pic of the ebay ad that I attached, they are about the same.

les

dvsrd,

its not a new pad, it came to me with used pads and I have no idea what the measurement of a new one would be, however its got about 3/4mm on it, so its not far off.

cheers
les

forgot

https://www.ebay.co.uk/itm/Yamaha-TDR-125-1997-Front-Brake-Caliper/233423831736?hash=item36592502b8:g:7ZQAAOSwE7FZ1jEy,

cheers

dvsrd,

just putting a dt400 engine in a tdr125, I have the caliper  in my hand. it has a twin sliding front caliper, on the left. measuring from the surface of the rear (pulled) brake pad to the rear of the caliper is approx. 25mm.

might help
cheers
les

m in sc

thanks for that, It makes sense, I hope its that simple! could be a week before I can get to it to try.

any other ideas appreciated, I will try them all.

les

Good day folks,

question on my dt250mx. recon engine, good compression etc.

starting from cold with or without choke, it will fire ONCE and then appear to flood. if I remove and dry the plug it will repeat the same fire once. I can start it by bumping and it will run very well after that.

I have changed the carb for a brand new one, and messed with jetting/mixtures, same problem.

so my question is this. could a weak spark get flooded out and then fail and appear to be caused by flooding. if so I will start replacing electrical parts one by one.

any advice appreciated.
thanks and stay safe folks.
les.

Peeps,

think you've had a bad day?

https://www.youtube.com/watch?v=vRfbL6memSs

cheers
les

socal250

nice fz6, I too have an '05, just finished winter refurb. waiting for some socal weather.

https://www.youtube.com/watch?v=3bdGNI68468

cheers
les

hi,

and start rewatching MAD MAX for a view ahead.

les

dudes,

its not about "it will go around the world anyway so why......"
I am in Ireland, and watch the news from Italy every day. England and Ireland are next in line for the biggy.
today in Italy, who have been on lock-down for two weeks already.
5000 new cases in one day
790 deaths in one day
the army are overloaded with corpses on their way to the crem.
take it seriously.
Italy has the best medical care in Europe, Ireland the worst.
it is doubling here every three days.
that means that if you hospital system is at 50 percent one day, in three days it will be overloaded.

it is not about accepting it and riding it out, it is about spread the curve spike out so the medical system can cope over a longer period of time.

please stay safe and isolate.

best form of transport is the motorcycle, transport AND isolation!.

cheers folks
les

Good day folks,

it has been a while but now I am back into building.

I have engines completed for a couple of projects, one dt250mx, one dt400 mx. question is this.

I have the stators for both, they are cdi type and that is all I have. I plan to wire them with the minimal amount of wiring necessary to make them run. I  have access to a couple of cdi black boxes and have coils etc, but how to wire? do I need a battery or will they run without?

does anyone have a pointer to a colour wiring diagram for the above models, I am assuming they are roughly the same?

any advice will be much appreciated.

cheers
les