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Discussion Starter #1
1991 300fw while idling looking @ the depth of a creek before crossing it died. No spark. I've been unable to locate owners or shop manual for this atv. Honda cannot supply them, Helm, their printer supplier, says they are out of print. With out a wiring diagram it's difficult to know where to start. I know my way around vehicles but everything is buried in a harness or molded in, like the coil, it's a bit of a challange. Thanks
 

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I would start with making sure that all the wiring is still good and is not cut or chafted. Then I would replace the plug, check the ohms of the plug wire and then replacing the coil.
 

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X2 on checking the wireing, as for a service manual i would look into haynes, i got there adress but cant find a phone number or a website adress, but the company name is Haynes North America, INC 861 Lawrence Drive Newbury Park, California 91320 USA. Maby u can try to send them a letter or call 411 they been makeing ATV repair manuals for a long time
 

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E-bay is always a good place for manuals. I've gotten factory service and wiring manuals for my 68 Plymouth Valiant even on there.
 

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I got a 1991 250X manual the electrical system should be really close. I have already uploaded the electrical troubleshooting section for someone else if you still need it i can email it to you this evening when I get home. Just send me a pm with your E-mail addy and I will gladly help you out. But I'm guessing the ignition module took a crap.
 

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Discussion Starter #6
At the cost of a module unit I'd like to verify that the pick up or trigger coil (automotive terms I know........) is sending a signal to the module. There is a wire bundle coming out of the right side of the engine, breaks into 2 units, one 3 wire that goes to 3x3 finned alum box in front of the left rear tire. I assume this is a rectifier for the charging system. The 2nd is a 2 wire unit, and I would think that is the triggering mechanism for the ignition. Cranking the engine should give a weak voltage every time it wants to fire the module. This is the thinking I would like to verify. I've only had this unit on the farm for about 10 days, so I've not accumulated any svc info yet
 

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Just a dumb question.... You are not in reverse are you? These quads have a reverse lockout so it wont start while rewind is engaged. you will not get any saprk if it is. just athought. if you want the trouble shoot procedures i can mail them to you? It tells you how to check each component with a meter.
 

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Discussion Starter #8
I thought about that right away, but it won't crank if it's not in neutral, right?
But.........I was shifting into reverse when it quit. I was looking a rain swollen creek, decided that 4-5' would not be real smart to cross, so I was going to back out of there............I'm not sure how to leave my e-mail, other than in the body of this message. I did "leave a message" for you after your last post, offering to send a wiring diagram. It looked like it went into a message area of some sort. I clicked on your user name and it led me there, again, not sure.
Thanks
 

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IF i was guessing i would say that the sensor is still reading that your in reverse while your not, you may also want to look into the kill switch on your left handerlbar and track down those wires they tend to melt together from time to time.
 

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I haven't made it home sorry we have been staying at the beach this week I should be home tonight. As josh stated check your Kill switch.
You were in Rev. when it died ok look on the left frameside upo close to where the seat and plastic mets there is a cluster of wires there. Look for a gray wire and a gray/black they will have a male/female connectoron each of them unplug them and run a jumper between the harness side of the wire and see if it will start. LEt us Know what happens
 

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Discussion Starter #11
Gentlemen - Thanks for your help! At age 65, and a retired automotive instructor, it's good to know we all can be humiliated from time to time. I bought this Honda from a neighboring farmer that had only used it on the farm. Never got out of 3rd gear. He was amazed it had 5 speeds! After reading your posts, the latest two mention kill switch. Kill switch? As I don't have a manual and am not really into these things since my boys turned 18 and moved on 15 years ago. The snowmobles, motocross bikes, 3 wheelers and an occasional 4 wheeler went with them. I haven't come up with an owners manual or svc manual yet so I'm in the dark. Once I located a red slide type lever and clicked back to the left...............all kinds of spark. Thanks again
 

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Glad we could help
 

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Reverse trouble shooting information

May I have a copy of the reverse trouble shooting information you may have or a link as to where I can find it?

My 1988 TRX 3000 FW takes a vacation when trying to use the reverse.

Any help is appreciated

Charlie

Moose can you help me out?

Thanks
 

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What kind of issues are you having? that dosen't have electronic reverse does it?
 

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[email protected]

No schematic says just a switch. I have followed your posts and I believe I have the same reverse problem as the older guy. I get no spark after attempting reverse. It is intermittent so I do not thnk it is a toatl break but belive it is the switch. Just need some guidelines on trouble shooting the reverse circuit, connectors, and hardware.
 

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1988 TRX 300 FW Fourtrax 300 4x4

Schematic simply indicates a switch.

When I place the transmission in reverse and shift to neutral and turn off engine I try and restart and there is no spark. I shift back to reverse and shift back to neutral and I get spark and it starts.

I am looking for a trouble shooting guide for the reverse issue mentiioned in this message string.


Shifting to higher gears is hard from the toe shifter but believe that is seperate issue.

Any help is appreciated.

Thanks

Charlie
 

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Sonds like the reverse sensor is getting ready to take a crap on you I would by pass it and see if your problem persist. but keep in mind when it's bypassed it will start in reverse.
 

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Thanks... Now where would I find the reverse sensor... Is the sensor a switch as well? Is it in the Xmission case or along the reverse cable line somewhere.

I wouldnt ask but I need a clue so I do not have to disassemble everything to get to it I hope.

Thanks for your help.

Hope you holidays a happy.
 

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There are two small swirches at the base of the right sied engine. I am looking to reoplace the wiring harnes up to the connecter from the switches. I am also replacing the switches. (two of them and the end of the elitrical harness).

I don not think the switches are the problem because the are spring loaded mechnical cylinders. Unless the springs have sustained damage or have worn to such a point that the no longer have sufficient spring I do not know what happens after that.

Is this the entire circuit for the reverse or is there a sensor or other electrical device that opens this circuit under certain shifting scenarios? Any help is appreciated.

Thanks
 
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