Question about 1987 Yamaha FZR 250

1 Answer

Fzr 250 water getting into oil

I put in a brand new head gasket so I'm ruling that out what else could cause water to get into the oil.

Posted by on

  • troyhayward Feb 04, 2010

    All surfaces were checked and a silicon hylomar spray was applied to the head gasket it's not the gasket

  • troyhayward Feb 04, 2010

    Ok so what if i put some radiator stop leak in and see if that stops the problem? i have taken this bike apart 4 times already i dont feel like making it a 5th.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Expert
  • 4,070 Answers

Good day, if you had a new gasket then maybe theres a problem in the cylinder head. try to rephase the head for it may have a little space that the water can pass. have a nice day

Posted on Feb 04, 2010

  • dj_relly999
    dj_relly999 Feb 04, 2010

    good day! if you had a new head gasket then theres 1 more problem, try rephasing your cylinder head for it may have a little space that water can pass thru. it will surely help. have a nice day

  • dj_relly999
    dj_relly999 Feb 04, 2010

    ok.. good to hear that. well i dont think that a radiator leak will fell inside the engine oil. is your gasket has the same holes as the original you just replaced? coz there should be no cause of water issues anymore. have you drained the engine oil entirely? there might be some residues.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

VZ commodore alloytech motor, oil in coolant but no water in oil

Just because you have no water in the oil, you cannot rule out a head gasket issue or a cracked head. Do a bleed-down test.

Aug 14, 2014 | Cars & Trucks

2 Answers

I have a 1999 oldsmobile that keeps overheating i had the radiator the thermostat the water pump and top hose replaced not used but brand new a broken head gasket has been ruled out i need help asap

Check hand brake is fully released. Why head gasket had been ruled out ? Run engine till warm, carefully open rad cap, let engine idle, look for BUBBLES IN COOLANT. IF YOU SEE ANY NO MATTER HOW SMALL, CHANGE HEAD GASKET.

Oct 22, 2012 | 1997 Oldsmobile Aurora

1 Answer

I have a 2006 Suzuki RM-Z 250. I just recieved it from my brother and its not running. I went to check the spark and when i kicked it over water shot out of the spark plug hole. I drained the oil and the...

Definitely the head gasket mate water cant really get above piston any other way - the piston would be sucking water into it on the down stroke then on the up stroke water would be passing pass the piston rings into sump oil
the only test you can do with out the bike started is a compressed air leak down test I happy to elaborate on this test if you need but if you do all your own rebuilds then I sure you know all about it..
when you take head off to replace gasket I would highly recommend you get the face of the head machined as pretty much any head that age in my experience at least would have some warpage to the face which will become harder and harder to get good head gasket seal even with new gaskets also if budget allows this would be great time to consider new piston and rings kit even new cylinder as its all apart any how if you can afford it would be very worth while
when you get running again I would also change that oil completely and oil filter every ride for at least 2 or 3 times to make sure all that water is all gone - or it will bite you later with far worse problems than head gasket issues

Jun 03, 2011 | 2005 Suzuki RM-Z 250

1 Answer

I have a 1998 rmx 250 and have water in the gear box oil is it just a seal cause theres no visable cracks anywhere....i have ordered a new seal and sharft

If this is the four stroke version, the most likely cause for water in the oil would be a blown cylinder head gasket. Unfortunately the only repair in that case is a head skim and gasket replacement.

Feb 21, 2011 | 2003 Suzuki RM 250

1 Answer


if the water pump bearing or seal or bearing has colapsed it is posible for water to find its way into the crankcase. however I must ask did you completely flush the cooling system & change the oil when you changed the head gasket if not the sludge that was left behind would continue to mix with any fresh oil or coolant you may have put in if in fact your problem was a blown head gasket in wich case you need to investigate the cause of the blown gasket have you recently topped up the coolant whilst the motor was hot or worse over heated doing so will definately cause a head gasket to blow was there obvious evidence of the gasket being blown ie blow by marks on the gasket or the head & barrel surfaces if not you will need to further investigate the reason for water finding its way into the oil.Let me know how you get on.Regards Geoff

Apr 04, 2010 | 2004 Yamaha DT 125 R

1 Answer

My yamaha fzr 250 won't start

back the valve adjustment off!! there set too tight

Jan 16, 2010 | 1987 Yamaha FZR 250

1 Answer

1991 Jaguar XJ6 Soverign 4.0 Water in the engine oil

Get engine warm and do a compression test. This easily eliminates head gasket. Head gasket is a biggish job and time wasted if it is not the problem. Part throttle breather unlikely as this is a vacuum applied to the cam cover, so water is unlikely to get in there as the air is coming out of the engine. But, if water is in the inlet manifold, could it be the inlet manifold to head gasket? I can't remember for sure, but I think this is water heated? If so, that is probably your culprit. If not, it sounds like a top end water leak and unlikely to be head gasket, head gasket leaks nearly always show up as steam out of the exhaust - "white smoke". Hope this helps.

Jul 27, 2009 | 1993 Jaguar XJ6

1 Answer

Starting The Bike On A Cold Morning

Try putting in new, stock spark plugs. Check and possibly replace the air filter. Charge the battery. Get the bike running then check the battery voltage at 2000 rpm. It should show 14volts or more. If not, get the charging system checked. Get a can of starting spray (for future problems).

Get the compression checked. Your bike is 21 years old and I will bet that the valves are needing to be reseated. Check the valve clearances with a cold engine and reset valve clearances as needed. Check the area where the head contacts th cylinder. Any mist of an oil stain? Tighten the head or replace the head gasket. If replacing the gasket, now is the time to have the shop lap re-seat the valves. Have them sync and balance the carbs as well. Your bike will now have its' manners back and show you the dedication it should.

May 29, 2009 | 1988 Yamaha FZR 250

2 Answers

Oil in water

Usually means your head gasket is leaking, or someone messed up and put water in the oil fill.

May 12, 2009 | 2005 Ford F 250 Super Duty

Not finding what you are looking for?
1987 Yamaha FZR 250 Logo

Related Topics:

42 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

281 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1147 Answers


Level 3 Expert

2600 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides