Author Topic: Leaking 2 stroke oil  (Read 312 times)

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Offline mikandrsn

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Leaking 2 stroke oil
« on: May 09, 2021, 09:30:54 PM »
Recently purchased a really nice dt175. The only issue is it leaks 2 stroke oil out of the left carb. (about 10 drops per day). Any suggestions on what my problem might be. Thanks

Offline OldSwartout

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Re: Leaking 2 stroke oil
« Reply #1 on: May 10, 2021, 08:32:16 AM »
The check valve in the oil line isn't seating. Not sure they're repairable, but might just have some debris it it.
Karl Swartout
Mooresville, IN
BS175 Roadracer. BS200RS, BS175HS
BS350 GTR

Offline mikandrsn

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Re: Leaking 2 stroke oil
« Reply #2 on: May 11, 2021, 03:03:10 PM »
thanks I'll check them

Offline Old BS Guy

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Re: Leaking 2 stroke oil
« Reply #3 on: May 23, 2021, 11:25:55 AM »
Most certainly check valves are a problem, especially with a bike that has set for a long period. The additive packages in some 2 stroke oils tend to separate and gel around fixtures and low points. (Gummy). As memory serves, some early check fittings were rebuildable, latter was not. That change occurred on DT175 twins after Oct. 1965 production. ALWAYS a good idea to check your tank filter as well, making sure it has integrity and isn't collapsed or compromised. On unknown new projects it's good to start from supply and work through to delivery points. Saves grief.
« Last Edit: May 23, 2021, 01:28:39 PM by Old BS Guy »
'65 BS Homer 50, '69 Mach II RS 200, '67 GTR,(2), '70 GTO,'79 Honda CBX, '80 CBX '82 Yam 650 Turbo, '74 RD-350, '70 Triumph 500 Trophy, '64 Honda CL72 250 Scrambler, 67 Honda CL77 305 Scrambler. '67 Kawasaki A1SS Samurai

 


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