need help with my 2001 yamaha wr250f

[gavin198]

hi all any info would be great on my problem

i jet washed my bike and lost my spark dumb i know
so i paid an auto electrician to come out too tell me my problem
he said cdi due to there was no reading from the orange wire
so i managed to source one and i fitted it and now i still have no spark
i have readings from the pic up ect front light will come on
just no spark now this is my last plea for help
any thing for me to try i will i need fix it as its also my main transport

[waffles]

Stupid question here - have you actually checked the spark plug to make sure you didn't jetwash inside it? I did the same thing with my xr, funny watching four or five guys trying in vain to start a bike when all it needed was a quick squirt with a compressor
____________________
Theory test - 19/8/09, CBT - 11/10/09, MOD 1 - 16/8/10, MOD 2 - 27/10/10
Past rides Yamaha XT125X, Triumph TT600, Honda XR250
Current rides Suzuki GSXR 600, Honda MSX125

[gavin198]

[P.addy]

Cover the entire area in wd40, HT lead, spark plug etc

Have you changed spark plug? If not, try a new one.. Could be coincidental that it died that day

Do you have a multimeter? Check the loom and work your way from the battery forwards.

[gavin198]

[waffles]

[gavin198]

[yen_powell]

Water in your killswitch, killswitch on?

Low tension leads to the coil, are the spade terminals green, if so, scrape them and reconnect.

Is the sparkplug cap screwed onto the lead properly? Remove it, cut a few mm of lead off and reconnect.
____________________
Blackmail is a nasty word........but not as nasty as phlegm!
XT1200Z and a DR350 in bits

[gavin198]

[SuzukiTom]

he actually tested any of these connections?

id test the stator output and work your way out fromt there

[Fizzer Thou]

Is there a side stand cut-out switch? Or even a clutch lever cut-out switch?

I am surprised that a so called auto-electrician could not find the fault.They charge a lot more than the cost of a reasonable multi-meter from somewhere like Screwfix or Machine Mart.
____________________
Just talk bikes.What else is there?

Always have a 'Plan B'

[gavin198]

[gavin198]

big improvement today with my checking and my mate limited knowlage and his multimeter and the manual

https://www.ymenvom.nl/new/manuals/M5PH-30.PDF (the manual i used) that one user sent me the link to for that im greatful

IGNITION COIL INSPECTION
primary coil resistance 0.28 (WITHIN SPEC)
Secondary coil resistance 11.3 (WITHIN SPEC)

CDI MAGNETO INSPECTION
Pickup coil resistance 312 (WITHIN SPEC)
-----Charging coil 1 resistance------- NO READING----------
Charging coil 2 resistance 605 (WITHIN SPEC)

DO NEED TO REPLACE THE MAGNETO NOW OR IS THERE ANY FIX FOR THIS?

[gavin198]

will a stator out of a 2004 wr250f fit in my 2001 wr250f

[Fizzer Thou]

Compare the part numbers -

https://www.ronayers.com/Fiche/TypeID/26/Type/GENERATOR_/MakeID/4/Make/Yamaha/YearID/42/Year/2001/ModelID/7741/Model/WR_250F/GroupID/368002/Group/GENERATOR_

https://www.ronayers.com/Fiche/TypeID/26/Type/GENERATOR_/MakeID/4/Make/Yamaha/YearID/45/Year/2004/ModelID/1832/Model/WR250FS_WR250F/GroupID/346360/Group/GENERATOR_

But I would send the alternator to these people https://www.westcountrywindings.co.uk/ as they do a good quick turnaround on your existing coil former,so keeping the costs down.
____________________
Just talk bikes.What else is there?

Always have a 'Plan B'

[gavin198]