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Oil pump leaking dt 250

04 Sep 2019 15:30 04 Sep 2019 15:44 by Jagarrett369.
Jagarrett369
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Oil pump leaking dt 250 #1
Normal for the oil pump to leak at the gasket? Fresh rebuild. Having rev issues as well.
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12 Sep 2019 16:45 12 Sep 2019 16:46 by bluntz465.
bluntz465
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Oil pump leaking dt 250 #2
It appears your cable is not adjusted right. The pin should align with the tiny dot on the pulley.Unless of course you checked the output of it. count 200 strokes and you should get 1 ml at idle. and 10 ml at WOT.
I will include a video to help you out as this is a bit tricky to explain on a forum post. I am also guessing your throttle cable is misadjusted and not fully opening,reducing your rev limit. Also a leak is not normal.

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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13 Sep 2019 17:56
bluntz465
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Oil pump leaking dt 250 #3
After your pump is calibrated clean your plug and ride it for a few minutes. Then pull out the spark plug ,take a picture of it and post it back here.

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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