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Yamaha yz450f I have oil leaking out of a hose coming out of the top of cylinder head. Oil level is normal. Just was curious before I tore into it.

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  • 3 Answers

Over flow? bike running to lean? whats the hose for is there oil supposed to be in it?

Posted on Oct 14, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 65 Answers

SOURCE: dripping black oil from exhaust to cylinder head joint

hi most 2 strokes leak from here ,but try using general purpose silicone bath sealant,it worked on my 2 strokes

Posted on Mar 25, 2009

  • 3567 Answers

SOURCE: oil leaking from front cylinder

Tighten the cylinder head down and hope the gasket seals up. It probably will.

Top rating due on this answer! ( an easy one )

Posted on Apr 22, 2009

unclefot
  • 1 Answer

SOURCE: How to check my oil level on 04 Yamaha yzf 600

YZF600R is a carbureted model. OIL: The oil sight glass is a round window, low on the right side. Very hard to try to see when astride the bike, even if you use a mirror on an extension rod. Have a friend hold the bike level,perhaps, while you check. Oil should be sighted after the bike has been sitting for a time after riding. I suggest using a good 10W-40 regular motorcycle oil (Least expensive around here in Boston is to buy Kawasaki by the gallon at Riverside) I found the pesky 1st-to-2nd shift to be more direct with this oil than with synthetic. I had plenty of opportunity to compare the two types. GAS: No reserve, but as noted, there is a low fuel light, in the row of lights that includes the neutral light and the high beam indicator. You ought to be getting over 50 m.p.g., so you can estimate your 'range' from that. I usually fill up again around the 180 mile period. I think I've seen the low fuel light once in 6 years of ownership. OH: I suggest you treat the gas, on a regular basis, with 'marine' Stabil, not the regular stuff. I have had a 'gummy' Yamaha Virago 250 to care for, that I thought would never clear its fuel problems. Last winter ('08-'09) stored it with the marine Stabil in the tank and run for a while to get it into the carbs also. Within a few minutes of running it this spring-actually a couple weeks ago- it smoothed out and has run fine since. I believe this HAS to be as a result of the treatment of the fuel (run through the carbs before the winter storage) with this special Stabil. It was recommended by Carlo at Riverside- I'll have to remember to thank him for the advice. N.B. I always change the fuel (siphon it out, put that Stabil'ed but 'old' stuff into my car tank, refill the bikes with fresh 93 octane) each Spring.

Posted on Aug 17, 2009

dmsr63
  • 2050 Answers

SOURCE: oil capacity 2008 yz450f

I believe the engine and transmission are shared, using the same oil.
You should have a sight glass on the left side, and it should be checked after a warm up, and then sit for a couple of minutes. I think it's close to a quart and a half.

Posted on Dec 12, 2009

sisadsl
  • 1508 Answers

SOURCE: what kind of engine oil does a 2004 yamaha yz450f

20w40 four stroke engine oil,
car oils will cause clutch slip
the semi synthetic and full synthetic are better oils but cost more.
Change the oil often, it only holds a bit over a litre

Posted on Sep 01, 2010

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4. Faulty ignition coil and or connections.
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6. Faulty spark plug cables, leaking or broken, internal damage.
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