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Well got another one for the elders here. I recently picked up a Honda Trx 250
in pretty rough shape. Brought it home cleaned it up if thats possible. Motor was
seized, Pretty bad shape. I unseized the motor, got it to spin over, Got it to crank on its
own with the start button. Got neutral light, but no spark. Fuses good wiring is old but looks
intact. Went to check cdi box, here is where the problem lies, I dont know the year. The last one
was under the plastic on the crossmember, this one has none. Looks like a sticker was there at one time.
I checked the left side of frame by foot peg and nothing. Cant find any vin number. I need to know the year
to try to locate a cdi. One clue is this one appears to have 2 cdi boxes. One is a little larger than the other but
plugs look identical to eachother. One has green connectors and the other has white connectors. Is this only
on certain year model that has duel cdi boxes? I also need a download for a trx 250 Im thinking its about a 1985 or 86
but just a guess. Before changing i would like to check some voltages but need a manual for this. Any guess on how to
identify and or get a download for this one would be great. Wont let me post pics only .08 MB Down load available. Thanks in advance Az
Hi all, new to this forum so thanks in advance for the help.
I have recently brought a 2013 power steering fuel injected foreman 500.
It has a crack in the front casing and was running rough. I have since replaced the front engine casing and this has made no difference to the engine performance.
It starts and idles but bogs down and starts to die once throttle is applied.
It maybe be but it also sounds very load.
I have uploaded a video link of it.
Hi all, I was gifted this Bayou but she's been sitting quite some time. It won't crank using the factory start button but when I jumper the starter solenoid it cranks but there is no spark. The key has power coming in on the white wire and when turned on supplies power to the brown wire coming out.
I guess I should start with testing the pickup? I heard I may be able to jumper the wires coming from the pickup with an LED bulb and it will flash? I noticed in the manual that it should have around 110 ohms resistance so I'll check that as well. One thing I noticed was that the starter circuit relay has power on one of the black wires with the key on- this doesn't seem normal as I'm assuming the black wires are grounds? I think one of them comes from the start switch, travels through the starter circuit relay and then grounds the starter relay?
Mine is a 1991 so it has the 7 wire CDI (ignitor) and a 2 yellow wire alternator ( as opposed to the later 3 wire type ) with another 2 wires for the source coils (black & red wires ). The pickup wires are blue and black I do believe. Any help appreciated and yes I will test the pickup ASAP.
I'm trying to understand how the system works and I don't understand what the yellow / red wire from the kill switch does- I assume it gets grounded when the kill switch is "on" and therefore grounds the CDI so it can't activate the ignition coil? I noticed in the diagram that that yellow / red wire looks like it may be grounded by the ignition key switch when in the "off" position?
I also don't have 12v power at any of the wires going into the CDI- doesn't the CDI need to be powered? I also read on this forum that someone used a GM HEI module in place of the factory CDI just to test it for spark- does anyone have any info on that?
I hope I'm not missing something simple!
Here is a link to the diagram for my bike (which was posted by another user): https://www.quadcrazy.com/atvforum/topic/13742-1988-bayou-220-lost-spark/?tab=comments#comment-101193
Any help appreciated!
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