Question about 1983 Honda VT 250 F

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VT250 Gas leak into the oil.


I am working at getting a Japanese model of the 83 VT 250 running again for my brother. It's essentially the same with some minor differences.

The problem I am having is this... I left the bike on reserve over night. The next day, when I went to change the oil, the oil was full of gas!

Anyone have any idea where I should start?

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If i remember rightly,the reserve on the vt bypasses the fuel pump and has flooded the carbs,the other problem you may have is a stuck float which has allowed the fuel to keep coming from the tank,overfilling the carbs,and because of the placement of the carbs between the"v" the fuel would have poured straight into the cylinder,past the piston rings and into the sump,just drain the oil out and replace with fresh oil,check the float levels in the carbs,but apart from that the engine should be fine...hope this helps

Posted on Jul 16, 2009

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I had this problem. It was due to the Petcock not shutting off and leaking into the carbs which in turn were leaking into the cylinders and into the sump. My VT250 doesn't have a fuel pump as suggested by the previous answer. It is gravity / pressure by the carb fed. Easy solution to repair or replace the petcock (fuel switch thing). Problem solved.

Posted on Oct 04, 2015

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Posted on Jan 02, 2017

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