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I have a 1980 Suzuki gs250t the oil smells like gas but not bad and when I start it and then shut it off and check the oil it always has a little bit more.

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  • 321 Answers

Probabilly a stuk carburettor float or needle.
Try to solve this problem to gently tap on the carburettor bodies. If this doesn't help you have to clean out the carburettors, and/or replace the float neeldes

Posted on Mar 08, 2015

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Sounds like you have got worn piston rings/barrells the excess gap is alowing the fuel mixture in yhe bores to leak past down into the the oil- engine may need major overhaul as this will only get worse

Posted on Jul 12, 2013

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Posted on Jan 02, 2017

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SOURCE: Correct oil fuel ratio,1980 Pe 400

32 to 1 gas and oil > Two Stroke Engine Oil ( not Motor oil ). This equals 4ounces oil per gallon of gas.

Use premium unleaded gas. No Ethanol gas.

10w40 motor oil for the gearbox. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell.

Please take a moment to rate this solution. Thanks Beetle100! :)

Posted on May 03, 2009

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SOURCE: i have a 1981 suzuki gs250t one day it started the

1st check the fuse(s) are OK.
Sounds like a dead battery, either old or not being recharged by system.
The voltage across it should be at least 12.2 volts switched off rising to 12.5 -15 volts with engine running
If battery OK then check connections & wiring from battery to ignition switch & back out into the loom

Hope this helps (if so please mark as very helpful)

Ride Safe
Bike-Doc

Posted on Apr 15, 2010

  • 42 Answers

SOURCE: I have a 1980 xj650, rode home after buying. It

It may be possible that when it ran out of fuel that it grabbed any **** that was in the bottom of the tank and put it into the carbs, which may have gunked them up and they might need to be cleaned.

To verify that it IS or is NOT fuel or Carb related, get some starting fluid and shoot it into the air filter box ( or along the pod filters if the original box has been removed) to see if it starts. If it DOES start, you have a fuel issue either with the carbs being gunked up (idle jet or main jets), or the floats could be stuck open (again with gunk from the bottom of the tank) and thus flooding out your motor (you said it smells like gas). Usually if it smells like gas and the plugs are wet, something is wrong with the ignition since its not burning it. So if all of the above is OK, check the timing under the points cover, you may have to set the gap (on most older bikes its around .30-.40mm) But since you rode it home I doubt thats it.

Posted on Nov 08, 2010

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My son added gas/oil mixture into his kids atv and started it bit it shut down in 1min and won't run now.Polaris child atv.what can I do??


2 cycle oil wont hurt it a bit,drain the gas out and start fresh,oil is good for a motor,smell the gas,it may smell bad,which means the oil and gas have congieled

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2003 suzuki wont start ran good whenparked 2 mo ago checked plugs checked fuel


Make sure the battery is fully charged. Consider getting a jump from another vehicle and if that doesn't work buy a can of ether starting fluid from the local walmart or auto store. Make sure not to keep turning the motor over if the vehicle doesn't start - you will flood the motor with gas and can damage the pistons - excessive gas will wash off the oil and the starter will get very hot. If you have done that already consider removing the spark plugs and adding a few drop of engine oil to each cylinder and smell for gas - let it air out. When older cars sit unused problems can bubble up.

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My car revvs in low gears and smelling a bit


smelling ? raw gas or half burnt fuel, or oil smoke?

post what car does, good and bad.
i guess you have A/T tranny automatic,
does the transmission slip?
if it does, post that, if dont know, ask any mech, with ASE badge on the sleeve, diagnosis is first. some things like gas leaks are very dangeous.

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I have a 1980 Suzuki gs250t and my oil smells like gas if I ride it will it ruin it or what do I need to do to fix it?


it will ruin it, because as gas gets added to the oil it will thin out substantially fast, causing major engine ware. the only good thing is if you had any sludge build up or tarnish from the age and old oils chances are its pretty darn clean now. the problem is probably bad rings and oil seals on the pistons or really bad valve seals letting gas and air leak back into the heads and in your oil. depending on how many miles are on the bike I would suggest a top end rebuild and if you don't have the know how to measure and check the heads when there off send them out to get inspected. I just did a top end on a Harley for somebody and the parts cost after needing new valve seats new exhaust valves new valve guides and seals new pistons rings gaskets and amsoil per the customers request was 1158.00 before labor. which was the better part of a full day 8-10 hours .

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My mazda 626 has a strong potent smell coming from the exhaust


You don't mention what that smell is reminiscent of?

You don't mention the colour of the "smoke" and you didn't say whether the engine is petrol or diesel?

You don't mention whether the road behaviour/performance is normal?

White smoke is almost always steam or in the case of a diesel it could be an unburned fuel mist, grey/black is excess fuel and blue or grey/blue is burning oil.

Some steam is fairly normal until the engine and exhaust system is hot but excessive amounts could be one symptom of head gasket trouble. If the engine is drinking coolant and sending it through the exhaust as steam it will sometimes smell spicy.

Burning oil smells a bit like burned eggs in the frying pan.

If the car hasn't ultra-low sulphur oil and fuel the catalytic converter will convert sulphur traces into hydrogen sulphide - the bad egg gas...

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I have an 02 yz 426f the bike runs real strong and no smoke but after a few short rides the oil has a hint of a gas smell


Make sure the floats are at correct height to shut off gas w/ bowls are full. remove bowels & clean out then turn on petcock move floats up do they shut off gas. oil over time will get a little gas smell.. turn off petcock off when parked;;;

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Battery and spark plug problems not turning over to start


Probably just a weak battery. front light may come on, but thats not always enough to turn it over. does it make a faint clicking noise? if your battery is good, i would check you gas next. make sure it was not shut off some how. maybe bad gas. you kinda left that question a little light on details

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Hard start


if it smells like rotten eggs or bad gas these are signs that the cat. converter is or going bad. get it replaced.

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Proper start-up service for a 1980 Suzuki GS550L motorcycle.


Shoot WD40 into each cylinder to get them wet.
Change gearbox oil and oil filter. Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell. How bad is the rust inside the gas tank? I would consider a liquid tank liner if rusted. Google “ kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html
  • Lube chain or get a new chain (if needed)
  • Lube Throttle, clutch and front brake cables
  • Lube Speedometer cable
  • Grease the swingarm, axle and steering stem bearings.
  • Install a new battery
  • Clean, and balance the carbs. This will be the problem area. They will likely be gummed up pretty good. Be sure to install an in-line fuel filter before starting the bike.

Jun 11, 2009 | 1980 Suzuki Gs 550 L

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