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Makotosun

Experimented today w/DT250D ignition on DT360...

  • pabdt
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Experimented today w/DT250D ignition on DT360... was created by pabdt

The 77 DT250 flywheel recessed down too far on crankshaft causing the crank to not turn at all.  Noted, was not as recessed on stock application which when
tested worked great.  Is a FOTO1971 flywheel.  

 MarkT, I know this is your specialty.  Any ideas?  More to come on why I'm testing later.


 
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
1977 Yamaha DT250D
Next…196x-197x Yamaha something.
25 Oct 2025 07:30 #1

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Replied by MarkT on topic Experimented today w/DT250D ignition on DT360...

never had that issue
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
25 Oct 2025 08:15 #2

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  • Gr8uncleal
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Replied by Gr8uncleal on topic Experimented today w/DT250D ignition on DT360...

If and when you get a 250 setup to fit your DT360A then, if needed, I think that DEET might be able to supply a sub harness to link the wiring from the stator, to that on the main harness (I got one from him a few years ago for my own conversion).  
25 Oct 2025 08:15 #3

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Replied by pabdt on topic Experimented today w/DT250D ignition on DT360...

Like the harness idea.   Going to look closer and see if I can figure out why the crank is jamming on stator plate.  

put it on a 2nd engine I have…and same results.  
Spins about half turn then jams.   











 
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
1977 Yamaha DT250D
Next…196x-197x Yamaha something.
25 Oct 2025 08:35 #4

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