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Xs850
- Thread starter codbhy
- Start date
Im currently trying to get spark on it, i've replaced the pickup coils + rotor and the ignitor unit. What else is needed for spark? All 3 plugs have no spark so im thinking its not the ignition coils
If theres anywhere else to post this lmk i havent found any other forums yet
If theres anywhere else to post this lmk i havent found any other forums yet
Sounds good, Do these bikes have any safety switches? Kickstand switch, clutch switch, oil pressure switch or brake switches that might cut spark if not working?
That's getting into model specifics and beyond my knowledge. The diagram above, however, shows only a neutral switch that interfaces with the ignition circuit. The oil pressure sw. does not appear to affect the ignition
Scanned pages from Factory manual covering Ignition system.
On the wiring harness it says theres a main 20A switch is that the ignition key? all ive found for fuses are the 4 glass tube fuses
And to test if 12v is going to coil do i put positive lead on r/w wire going into coil and the black lead on the other wire?
And to test if 12v is going to coil do i put positive lead on r/w wire going into coil and the black lead on the other wire?
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Fuse ?? Kill Switch ?
A shot in the dark .you have no Power or ground if such is needed on the Ignition unit.
If this was me I would consider the Possibility to Jump in and out that physics
But please do the read up so it is possible to do it . I have not looked at the Schematic.
The switch is broken which is why ive bypassed it for now, But shorting the solenoid will crank the starter no problem
That same switch controls the red/white wire that powers the starter solenoid and the ignition coils (the start button only grounds the blue/white to the solenoid) are you sure you've got it bypassed properly?
Yes to that
Not sure if we are into fault Finding mode here please stop me if not so
I have not looked at the schematic or read the service bulletins
But the start button connects L/W and B B Probably ground please check
Who knows what happens downstream after that has occurred ..If there are other circuits energized
That connector there I would service .Cleaning Grinding and Some contact Grease
I Would Check having 12 V on the upside of the Kill Switch then at the downside and then out of that connector
Having 12 V out on R /W and then Wroommm Wroom Wroom .. Wroommm Wroom Wroom .. Wroommm Wroom Wroom ..
( MAYBE )
There will be two wires: most early '80's Yamahas it was R/W in and out - just connect the two. On earlier bikes it was brown in, R/W out - same connection between the two
I have the R/W connected the only other wire there that i seen coming from the switch was L/W
