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General Category >> Rubber Side Down! >> Petrol / gas coming oit from Engine Oil outlet
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Message started by SAYA on 05/26/18 at 01:21:04

Title: Petrol / gas coming oit from Engine Oil outlet
Post by SAYA on 05/26/18 at 01:21:04

hi,

I owe a suzuki boulevard S40 model 2009...
When i opened a oil plug/ bolt then petrol and engine oil mixed together comes out....

What should be the problem?? Pls help

Regrads,
Shahid

Title: Re: Petrol / gas coming oit from Engine Oil outlet
Post by Dave on 05/26/18 at 04:32:02

It is probably 1 of a couple of things:

1) When the diaphragm in the stock petcock fails, it allows fuel to flow down the vacuum line to the carb, and the fuel then either flows into the engine or airbox (or both).

2) If you have replaced the manual petock with the recommended Raptor petcock and you are still having the problem - you likely have something wrong with the needle/seat in the carb (and are not turning your fuel off when you park the bike).

If you have the stock petcock - buy and install a Rapto, as the stock petcock will fail eventually. If you buy it on eBay avoid the $6 ones as they are Chinese copies. Buy the original Yamaha part - it will come in a white box and have a Yamaha name and part number 5LP-24500-01-00....it should be around $28 and is money well spent.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1366651397

Title: Re: Petrol / gas coming oit from Engine Oil outlet
Post by SAYA on 05/26/18 at 06:09:48

Hi, thank you. But the problem is fuel coming out from oil drain plug....I still not understand d how it is coming from engine oil drain plug??

Regards.

Title: Re: Petrol / gas coming oit from Engine Oil outlet
Post by kojones on 05/26/18 at 06:31:33

31233B620 wrote:

Hi, thank you. But the problem is fuel coming out from oil drain plug....I still not understand d how it is coming from engine oil drain plug??

Regards.

The carb leaks fuel to the cylinder, and the fuel seeps through the piston rings to the oil galley.

Title: Re: Petrol / gas coming oit from Engine Oil outlet
Post by SAYA on 05/26/18 at 08:04:45

Oh Oky...thank you brother :)