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DT1 crank case leak and still no spark

15 Jul 2019 11:52
Nitto05
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DT1 crank case leak and still no spark #1
Hi guys my bike is almost done got the fuel line in clean up the bike ect but when I bolted on my spark plugs gas came out from the left side crankcase where the stator is I dunno what it is I'm trying to see but the screws bolted on the coils are stuck I need help figuring out how to get the bolts out and what is the problem also if anyone has a brand new stator for the magnito let me know I think maybe mine is bad I dunno.

Heres a video of the leak drive.google.com/file/d/1-C985tDzEDr16XD...Dc/view?usp=drivesdk

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15 Jul 2019 15:31
RT325
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DT1 crank case leak and still no spark #2
Wish you lived closer as hard to know where to start. Sounds like motor is full of fuel so push it around in gear with plug out & exhaust off for a bit. Make damn sure there's no spark or it could go up in flames with fuel spraying out the plug hole/holes. I'm guessing though that you have no spark & source coil in the mag looks a bit suspect & looks loose in the winding. That doesn't matter until the windings rub through the casing & start shorting out. I can see what you or someone has done by unwinding the coil by a turn etc & hooked to the condenser & that's ok but--lots of buts. With the screws i'd give the screw heads a flatten off with a punch to pull the cross head shape back in plus the punch will likely loosen the screw enough to easily get out. Impact driver 'used correctly' & with a new right sized tip will get it turning. Stator coil goes to condenser & other end either goes to earth or heads into the lighting coils to end up earthing--not sure why--then condenser goes to the points the wire from condenser goes up to the plug coil. Bottom line is stator coil. condenser, points, top coil all have to join up. Points need to be reasonably clean to contact. With flywheel back on, even on loosely, & an ohms meter on the lowest setting--an analogue not digital meter--on lowest then the needle should move very slightly between open & closed of the points. Mind you that still doesn't mean your stator coil is good or bad but that's another story, I've seen stator coils that shouldn't work--like my one lol--but work perfect, & others that look like new but are shorted out within the windings. Can't help any more sorry--well sorry if i've confused the issue haha--good at that.
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15 Jul 2019 16:15
Nitto05
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DT1 crank case leak and still no spark #3
Yeah I got all that I'm guessing it's the ignition coil you said that it would go up in flames if it had spark?
Also what seal do I have to replace? I live in pa

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15 Jul 2019 16:21 15 Jul 2019 16:27 by bluntz465.
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DT1 crank case leak and still no spark #4
Yes that is what he said,,,,,ie ,purging the fuel out of the motor while pushing it in gear makes sparks!
You need to leak test to be sure what gasket or seal is bad.
Before you do any electrical tests be absolutely sure all your grounds are solid.
good luck

1957 Cushman Eagle 1969 Honda 90 ATC 1969 Honda CB250
1973 Yamaha AT3 1974 Kawasaki KH440 1974 Honda XR75
1975 Suzuki TS75 1975 Kawasaki GreenStreak 90 1975 Suzuki GT550
1975 Suzuki TS250 1976 Suzuki GT550 1976 Indian Chief
1976 Yamaha YZ80 1978 Yamaha IT175 1980 Suzuki GS550
1982 Yamaha IT465J

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15 Jul 2019 16:30
RT325
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DT1 crank case leak and still no spark #5
If the mag cover had fuel in it then the crank seal behind the mag plate. But i wouldn't be worrying about that just yet because if the petrol tank & maybe oil tank has emptied into the motor over years of sitting then it has to leak out somewhere. I know seals should hold all that in but with a belly full of fuel & kicking it over it'll get out regardless. Re--spark & fire, was just saying if ya pushing it around in gear with plug out then you wouldn't want a stray spark from the plug coil lead jumping to the head or earth on the frame. Anyway, no chance of spark with the flywheel off. Hope you get some spark when you need it though with flywheel on. Carburettor possibly has a fault in the float valve & oil pump spring & ball on the pipe to the cylinder can also get fluff/stuff under the ball so oil very slowly enters the motor. I'd also drain the gearbox/trans & see what comes oil, change it regardless. Any lightweight engine oil, no need to go expensive. Main aim is to get it running.
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15 Jul 2019 16:42
Nitto05
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DT1 crank case leak and still no spark #6
Yep main aim is to get it running I drained the trans oil but not yet the crankcase oil/fuel thanks for the big tip I'll keep you updated.

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15 Jul 2019 16:46
Nitto05
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DT1 crank case leak and still no spark #7
Oh yeah btw the link works now so you can see

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15 Jul 2019 17:12 15 Jul 2019 17:14 by Pillsbury.
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DT1 crank case leak and still no spark #8
The bolts look like they could be loosened with an impact driver but if you don't have one see if you can catch the bolt head with vise grips & loosen. If not, just drill (bit slightly larger than the bolt shaft) the heads off, then when you pull it you will have a bit of the shaft to grab onto to loosen.

1970 DT1-C Grand Prix race bike
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1968 Honda CL90
1973 Honda CR250
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1966 Triumph Tiger Cub
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15 Jul 2019 17:49
bluntz465
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DT1 crank case leak and still no spark #9
well if you want to get it off at any cost then you can just weld a screwdriver to the screw.LOL

1957 Cushman Eagle 1969 Honda 90 ATC 1969 Honda CB250
1973 Yamaha AT3 1974 Kawasaki KH440 1974 Honda XR75
1975 Suzuki TS75 1975 Kawasaki GreenStreak 90 1975 Suzuki GT550
1975 Suzuki TS250 1976 Suzuki GT550 1976 Indian Chief
1976 Yamaha YZ80 1978 Yamaha IT175 1980 Suzuki GS550
1982 Yamaha IT465J

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15 Jul 2019 20:16
RT325
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DT1 crank case leak and still no spark #10
played the video & wow yeah it's pumping it out alright so might have to eat my words of seal never failing on those & take the plate off to see if its pushed the seal out.

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