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By P_syko
I’m brand new to 4 wheelers and just bought a 1987 Yamaha Moto 4 350. It has good compression and fuel, but no spark. I’ve looked high and low trying to find how to test all the components of the ignition system, but can’t find anything. This has a new CDI box on it, but I suspect it might be the stator. How do I test the stator on this? Any help would be greatly appreciated!
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By carkivey3
i just picked this up. was told ran fine but overheating issues led to replacing head gasket and head. has not ran since. he is not a mechanic but helped someone else who he could not get back to finish job, got aggravated and put up for sale. i was thinking timing issues. i have 110-120psi on all 3 cylinders so i think valves are correct. dont know about distributor yet. however i have no spark. i have no power going to ignition coil. tried to follow white wire but gets lost in wire harness. does anyone have a wiring diagram? can anyone tell me what conditions have to be met before starting. motor turns over so i would think all safeties are met but you never know.
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By TravisM
2001 bayou 220 KLF220A
Need some help putting a new ignition switch on this thing. I'm not finding homes for all the wires. I can hook up the white wire and brown wire, But the switch has a B/W and Solid Yellow wire i can't find a home for, and there aren't any more wires in the vicinity from the harness that match this, except one red wire with a double female end crimped on, and a few B/Y grounds. None of the wiring diagrams i've founder or have been given match.
I'm also wondering if i have the wrong switch? some switches appear to have 4 wires and other just 2, the Brown wire and a White wire.
I'm at a loss here. Thanks.
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By P_syko
Hello all! I’m new to the 4 wheeler world, but not new to the mechanic world. I was a diesel mechanic for many years and last year got into jet skis. I just bought a 1987 Yamaha moto 4 350 and now learning the ins and outs of 2 stroke engines. Looking forward to learning all the things.
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