Question about 1991 Suzuki VX 800
Previously thought oil leak was coming from crankcase breather, but not any more. Started tearing apart and found oil was coming from the rear air cleaner breather. Engine starts and runs great at idle. However, when the rpms are increased it starts dumping oil out of rear air cleaner breather. Pulled air cleaner apart and low and behold, there's a puddle of oil in there. Any help explaining this one would be greatly appreciated?
Does it smoke at all? It's possible that you have either added to much oil, or you have worn pistol rings and the oil is slipping past the pistons and being forced into your breather.
Posted on Nov 03, 2012
Testimonial: "moving back up the chain to the basics and you were correct, there was a significant amount of excess oil in the chamber; bike still does have a bit of a drip yet but the full fix might have to wait until next season"
Firstly check your engine oil level as the most common reason is too much oil in the engine and this is usually due to a carburettor flooding and fuel running into an inlet manifold,passing the inlet valve and piston rings and diluting the engine oil and obviously increasing its volume.i have seen this happen loads of times on lots of different bikes.
Posted on Nov 23, 2015
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Posted on Jan 02, 2017
SOURCE: power loss
In the absence of any FI codes/light, my next suspect would be the ignition coils. If the old plugs showed soot on ONE of the plugs, that coil might be your problem. The only reliable check is a spark tester that read the output while the bike is running.
Posted on Nov 18, 2010
SOURCE: Engine starts and runs great
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
Posted on Apr 19, 2011
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