Question about 1992 Yamaha TDM 850

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92 tdm 850 blows smoke on start up then clears, underlying problem? any ideas

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  • davejthomps May 11, 2010

    How many miles has it done. If the smoke is whitish colour it is probably a little condensation. If it is blue/black then it could be the valve stem seals on the way out

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  • Master
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Sounds like you need a ring job. Have you set up the valves in awhile ? would be a good idea.

Posted on Jul 24, 2009

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2 Answers

Oil level TDM 850 without oil level window


The tdm is a dry sump engine where the oil is in a tank under the seat and is pumped around the engine and returned to the tank by a scavenger pump in the bottom of the engine so a level window on the engine is not required

Apr 04, 2014 | 1999 Yamaha TDM 850

1 Answer

Idle adjust


Keep the sound lumpy when is fully warmed up, smoke should be light gray. Black smoke it too rich. It will smooth out when you goose it. If it's hard starting afterwards, just give it 1/8 of a turn on the rich side, not more.

Oct 05, 2013 | 1994 Yamaha TDM 850

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What type of coolant does my 92 yamaha tdm 850 need?


Hi, Jamen38017 automotive antifreeze 50/50 mix with distilled water for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one.
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Apr 22, 2012 | 1992 Yamaha TDM 850

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I have a 92 yamaha tmd 850 and carb is stuck open and won't crank??how do I fix?


Hi, Rickydoitbig for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one.
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Sep 23, 2011 | 1992 Yamaha TDM 850

1 Answer

1992 Yamaha TDM 850 fork oil capacity


Hi, Andymnunn for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day
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Sep 09, 2010 | 1992 Yamaha TDM 850

1 Answer

Tdm 850 misfire


Hi, Barrytaylor6 and the usual suspects are:
1. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor damaged, contaminated, sticky float, plugged jets.
13. Multiple carburetors out of sync.
14. Fuel filter clogged.
15. Old or contaminated fuel.
16. Fuel tank vent system plugged or carb vent line closed off.
17. Gas cap diaphragm valve faulty.
18. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
19. Carburetor controls misadjusted.
20. Incorrect valve timing.
21. Valve springs floating, weak, or broken.
22. Damaged intake or exhaust valve.
23. Incompatible performance parts.
24. Control module may be in "LIMP" mode
25. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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May 24, 2010 | 1999 Yamaha TDM 850

1 Answer

When I start the bike from cold I get a srong smell of fuel and alot of smoke, goes away after a few minutes is this a problem or is it normal?


this is not normal!!..sounds like it could be the choke that wants looking at on the carb...what sort of smoke?...oil smoke or just over fuleing smoke?...it does want checking out either way!!

Jan 28, 2010 | 1997 Yamaha TDM 850

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