Question about 2000 Triumph Sprint ST

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Overfuelling bike is smoking quite badly under load been on emissions tester hydrocarbons well high. changed plugs filters oil air temp sensor

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Check your oil level that you you have not overfilled your engine oil.
Other problems that can cause smoking for instance your bike was stored with fuel in it and the petcock was not shut or diapham is bad causing fuel to seep into the engine raising the oil level not good.
other problem you have a scored or scratched cylinder wall passing oil past the rings.
major work.

Posted on May 03, 2010

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My 88 buick limited wont pass smog hc is 169 at low idle changed map sensor and oil still wont pass but car runs fine.

Are you burning oil? Does this car still have a catalytic converter? Have you changed spark plugs or air filter recently. There are many causes for a high hydrocarbon reading: burning oil due to rings or valve stem seals; catalytic converter malfunctioning or missing; vehicle in need of a tuneup or air filter replacement. Poor combustion results in high hydrocarbon levels. Good luck with it.

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High HYDROCARBONS on emissions test. I have took my 97 Cabrio to emissions test and failed due to High Hydrocarbons. but states the Catalytic converter is fine. what eles could cause high HC levels?

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The hydrocarbons emissions are to high

Bad plug or wires, or bad catalytic converter can do this.
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1 Answer

Mine want pass emissions high hydrocarbon runs slugish. sometimes wont start takes a couple of times to start could that be main relay

Many things can cause this, so I'll just try to hit the high spots.

1. Poor fuel ignition (bad plugs, wires, cap, rotor, etc.
2. Improper Ignition Timing
3. Lean air fuel ratio mixture
4. Defective Catalytic Convertor
5. Defective Air Injection System.
6. Low Compression

These are general things that can cause this condition, but they may not be applicable to your particular vehicle.

Try a good old fashioned tune up: Plugs, wires, cap, rotor and points (if applicable) and a new air filter.

Wouldn't be a bad idea to also change the oil and oil filter.

The final item (#6) is a sign of a well worn engine and if this proves to be the primary problem, I'm afraid a engine rebuild is in order.

Anyway, good luck!

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Give it a tune up,change air and oil filter and oil.Put preimium gas in the tank. And change fuel filter.

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If it smokes white, that's oil smoke. With compression that high, it may be valve stem seals are bad or sucking oil out of the air filter.

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If you changed the battery or it went dead before your test ,it reset you history you will have to drive it a couple of weeks to update you emission control module then have it retested

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