suzuki gz125 black oil window

gypsypunk · Two Stroke Sniffer Joined: 12 Aug 2011 Karma :

my problem is i have black oil window been meaning to do a oil change but want to sort the clogged oil window
my bike is a suzuki gz125 w reg bought it like that months ago runs fine just a dirty window

pepperami · Super Spammer Joined: 17 Jan 2010 Karma :

Have you tried going to a motor-factors shop and buying some kind of oil additive that cleans your engine on the inside as you run it?
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Robby · Dirty Old Man Joined: 16 May 2002 Karma :

A few miles on clean oil should sort it. I would keep away from engine flushes and the like.

The window will be black if the oil is ancient, new oil might clean it. If it doesn't, then take off the side casing and clean it with a solvent.

The oil change interval will be about 2000 miles on that engine BTW, so if you've been riding it for a few months without a service and the window was black when you got it, its probably well overdue a service.

gypsypunk · Two Stroke Sniffer Joined: 12 Aug 2011 Karma :

ok i will just give it a change of oil and a new filter the only thing that will bother me is i will put in 950ml of oil with a new filter but wont see the oil level .. really buggin
yeah i got the bike used and been using it for a month

Fizzer Thou · World Chat Champion Joined: 06 Aug 2011 Karma :

A lady friend had her Suzuki GS125 serviced by a bike shop.On the first day back to work after having had the bike serviced she had oil dripping out of the airbox drain pipe.She took it back to the shop that had performed the service and they said that it needed a rebore as the worn piston rings were causing crankcase ventilation problems and so was causing the oil to pump up into the airbox.

When she brought it around for me for a second opinion,the first thing that we looked for was an oil level in the window.It was dark black,even after a few short miles,which showed that the oilwas doing its job.When we tilted the bike over to the left,an oil level appeared in the window.We drained off nearly 500ml of excess oil and squeezed out the air filter,which was of the foam type.

Suffice to say she was not pleased with the bike shop.

I suggest that if you drain the oil when it is hot,it will drain more thoroughly.If a clear window appears once drained,only add sufficient to go to the half way marker.Soak the filter with some fresh engine oil before installation.Run the engine for a short time to help to circulate the new oil,then top up to the prescribed level.
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gypsypunk · Two Stroke Sniffer Joined: 12 Aug 2011 Karma :

yeah when you have a bike i think it's really important to be able to do service's at least on your own bike... i have spent a fortune on tools and learning all the time.. my last error was changing my brake pads the ancient dust seal shrunk onto the piston and seized an easy 5 min job turned into a call out for a mobile mechanic and and it took him an hour just to free the piston.
luckly he was really experienced ..cheap.. and a great help now i know everything about my brakes and how to bleed them would never get that from a garage or dealership.
i was thinking if i removed the crank case to clean the oil window i would probably have to replace the gasket and so would have to make shure i had one just to change the oil and filter..
just going to see how this oil/filter change goes first

gypsypunk · Two Stroke Sniffer Joined: 12 Aug 2011 Karma :

hi guys thanks for the advice i have been shocked i warmed the bike up today then leaned the bike way over on it's left and realised the window cleared .... so drained the oil and guess what the the last owner had filled it up with so much oil that it filled the window with black dirty oil . after doing a oil/filter change the little suzi is runner way better .. i cant beleve i use the bike for a month like that ... a learning curve i checked the air filter and it has taken in some oil at the bottom end so gonna change that tomorrow.
well at least i dont have to worry about cleaning the window

DrDonnyBrago · World Chat Champion Joined: 03 Jan 2010 Karma :

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

gypsypunk · Two Stroke Sniffer Joined: 12 Aug 2011 Karma :

the oil was just as it should be it smelt like a old ice cream van when i was a kid ...mmmmm lol

the oil window is as clean as a whistle now just orderd a air filter and brake pads/seals/fluid

what a diffrence in the performance of the bike alot more oomph
that oil change was needed badly

Mr. Green