Question about 2007 Yamaha XT 125 R

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Oil in air filter

Oil keeps getting into air filter and bike keeps breaking down.

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  • 254 Answers

Broken rings or head gasket.

Posted on Mar 19, 2014

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Posted on Jan 02, 2017

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SOURCE: oil coming out of the air filter

Could be the valve seals have hardened and are leaking

Posted on Jun 17, 2009

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My 2006 honda shadow with 9500 mile is getting a small pooling of oil in the air box the oil was a little past due to change was wondering if maybe it got a little thin and creaped in


some bikes have an oil breather that connects to the air filter, meant to keep emissions down, if clogged it can turn into a drip rather than gases

Mar 11, 2013 | Motorcycles

Tip

Keep oil off of bike while changing oil filter


On most sport bikes, well any bike, the oil filter is always right over parts of the bike that you don't want or need oil all over. I found that the box your oil filter comes in act as great to keep this from happening, open the box up so it's flat tear off the side flaps fold it in half long ways the put it under the oil filter so the oil runs down it and into your pan. always check that your o ring comes out with the old filter and double gasket will leck. oil the oil gasket to help keep it from sticking when you remove it the next change.
Fix It Right, Ride It Fast
Mark

on Jan 23, 2010 | Motorcycles

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Hi my suzuki gz 125 wont idle correctly and when i rev the engine it just dies down and cuts out i cant even achieve a stable idle speed


I had this problem today with my bike and after much ado I discovered there was oil in the air filter box... check your oil level it could be too full. Mines was and the excess oil was blown into the air filter box and as a result contaminated the air filter. Spent today cleaning the filter box, carb and draining and changing oil, could not get a new air filter today so ran it without onebike runs like new!! New air filter will be here Monday!

Aug 22, 2012 | 2000 Suzuki GZ 125 Marauder

1 Answer

Location of oil filter and what kinda of oil on a 2003 Honda CR125R 2-stroke


G'day.
There is no oil filter in a two stroke. Your bike has two types of oil for the engine.

In the gearbox, it uses a light viscosity 2 stroke motorcycle gearbox oil.

Then you have the oil that you pre-mix with your fuel(to lubricate the top-end & crankshaft bearings).

Oil for your bike is best purchased from a motorcycle shop- this is a racing bike that requires race type maintainance.
The better the maintainance the longer it will last.
Things like,
Keep the chain lubricated.
Keep the air filter clean & oiled correctly with propper air filter oil(this is REALLY important).
Use high octaine fuel-(if in Australia like me-no ethanol fuel- 98 octaine).
Use the best quality 2 stroke oil you can afford-preferably full-synthetic.
Here is a link to parts fishes(exploded diagrams) for your bike.
These will help you see all the parts & gives a good idea on what goes where.Click on the part name & it will show you a picture. : )
http://www.mrcycles.com/fiche_select2.asp?category=Motorcycles&make=Honda&year=2003&fveh=3243
If you have any other questions don't hesitate to ask.
Kind regards Andrew Porrelli

May 19, 2011 | 2003 Honda CR 125 R

1 Answer

Engine starts and runs great for 20 to 30 minutes or riding, then starts to lug at low rpm, and acts like its getting hot. If you let it cool, it runs great again. It does not have the optional elec fan,...


what kind of bike are we working on?? the avg temp for the elec fan to turn onis around the 220 mark. the best thing to do here is bench test the bike start it up and let it idle, put a fan that moves air in front of the bike, this will help to keep things cool while the bike heats up i know it kinda back-@ssward but do it. a inferred temp gun will help you get the temp, you can pick one up at your local auto parts store. check the temp near the senser for the fan and the radiator itself. keeping a GOOD oil, clean oil in your bike that will help with the cooling as well. If your running a bike with a fuel filter ( If your not GET ONE ) make sure its clean. Bikes with fuel pump, you a two types in tank and external, your in tanks pumps should have a filter on them in the tank, over time they get clogged like a inline filter and can cause poor running as well.
If everything is working as it should you'll need to look into your coils. Heat causes resistance, resistance causes heat and heat causes wires to break down and contact points to to weaken. Coils take alot of abuse when it comes to electricity, it doesn't always happen but it does. coils go out and tire wear odd sometimes.
I hope this helps you out if you need any more help please feel free to contact me
Fix it right Ride it FAST
M.Woodring

Apr 18, 2011 | Suzuki Rg 250 Motorcycles

1 Answer

My harley has a small leak coming from the air filter, the mechanic at the harley dealership told me it was the air filter. So i bought a new filter put it on and checked the oil level, with the bike...


Regrettably, a small oil leak from the air cleaner assembly is "normal". This is because the EPA requires all crankcase emissions to be routed to the intake system so that it can be burned in the engine. The result is that oil mist in the crankcase vented condenses in the air cleaner and eventually drips out.

The crankcase vent for your Sporty is in the heads. If you noticed, there are two large bolts that are hollow holding the air filter backing plate on. The crankcase vents into the air cleaner assembly through these two bolts. There is an "unbrella valve" in the rocker box center section that allows the air to flow one way but not the other. There are baffles in this area to keep the oil mist to a minimum but still there is some in the air coming out of the engine.

There are a few kits available on the aftermarket for re-routing this crankcase vent. You can direct the exit anywhere you wish using one of these kits. Most people just route the hose down and exit it under the bike just in front of the rear wheel.

When adding oil to your bike, only add the oil when the engine is hot. On your dipstick, you have two marks. The upper mark represents "FULL HOT" while the lower mark represents 'FULL COLD", Do not overfill. Check the level with the bike on the side stand.

Good Luck
steve

Oct 15, 2010 | 2006 Harley Davidson XL 1200 L Sporster...

1 Answer

Fuel leaking from air box after shutting down


Hi
Thats the float valve seals not shutting off, did you clean them & set the float heights?
The overflows from the carb bottoms must also be blocked for the fuel to fill up the carbs which then leaks into the air filter
Check also that the fuel tap turns off when bike is not running

Ride Safe
Bike-Doc

May 20, 2010 | 1985 kawasaki ZL 900 A1 Eliminator

1 Answer

Suzuki rm 125 2t - BEST WAY TO KEEP SAND OUT OF CARB, BIG END, ETC ??? WE HAVE TWO AND BOTH SEIZED AT 26HOURS!!! WE THOUGHT WE WERE REALLY CAREFUL, CLEANING THE FILTER, OILING ETC ETC, BUT OBVIOUSLY NOT...


you realy dont wont much do you!!!
keeping sand out the engine??? bam near impossible
all you can do is fit a grate big very very fine air filter witch will get cloged up prity fast and if its to small it will stop the engine from breathing the best filters are oil bath type were the sand is moveing so fast it gets thrown into the oil bath and gets stuck in it leaving clean air for the engine to breath but i cant see how you could fit on on a bike, you could try putting some trunking on the carb and fitting one to the rear of the bike, but it would still need to be serviced often
may look a bit daft too but if it saves the engine???
keep the air intake as far up as you can get it

Jan 16, 2010 | Suzuki RM 125 Motorcycles

1 Answer

On S50 Suzuki Motocycle I have an oil drip from a rubber tube that looks like it comes from up near the air cleaner and exits below the bike. Any ideas before I start taking the seat, tank, etc. off?


The air cleaner(filter) also filters crankcase blowby . Oil accumulates in filter box and drains. The draining is to prevent oil from being drawn into intake an should be addressed by servicing air filter and cleaning out the box. Rapid and excess oil in filter is a n indicator that blowby is considerable. Hardrabbit starts and sudden accelerations play a big part in ring wear and blowby. I've noticed the use of filter sponge placed, not stuffedm in crankcase vent hosebef ore filter housing will separate oil from fumes before they get to airfilter and oil will drain right back into engine instead of collecting in air box. Some crankcase vents are baffled and have a seperation medium factory installed at the enngine end if vent hose. Do not plug the drain or crankcase vent hose. major leaks will sevelope. Over reving will also cause greater oil misting that is carried out the vent with the air. Good luck - note! rapid throttling affects fuel burning eficciency and tends to break down needed cykinder wall lubtication, hastening ring wear. have fun, be safe.

May 10, 2009 | 2005 Suzuki Boulevard S50

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