Question about 1994 Yamaha TDM 850

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Yamaha TDM 850 engine dies when clutch lever is released

My motorcycle (Yamaha TDM 850) - when I let the clutch out, the engine dies (even when the side stand is up!

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  • Yamaha Master
  • 60,772 Answers

Hi, Marcus the ignition circuit cut-off system comprising of the side stand switch, clutch switch and neutral switch has the following functions:
a. It prevents starting when the transmission is in gear and the side stand is up, but the clutch lever is not pulled.
b. It prevents starting when the transmission is in gear and the clutch lever is pulled, but the side stand is still down.
c. It cuts the running engine when the transmission is in gear and the side stand is moved down.
Periodically check the operation of the ignition circuit cut-off system according to the following tests.
With the engine turned off:
1. Move the side stand down.
2. Make sure that the engine stop switch is set to "RUN"
3. Turn the key to "ON".
4. Shift the transmission into the neutral position.
5. Push the start switch if the engine does not start the neutral switch may be faulty.
With the engine still running:
6. Move the side stand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the side stand down if the engine does not stall you may have a faulty side stand switch.
After the engine has stalled:
10. Move the side stand up.
11. Keep the clutch lever pulled.
12. Push the start switch if the engine does not start you may have a faulty clutch switch.
This check is most reliable if performed with a warmed-up engine.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Stalls When Release The Clutch Lever
The 1299 Engine dies when pulling the clutch lever in
Yamaha TDM850 1996 Service Manual
OEM parts for Yamaha
YAMAHA TDM850 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Aug 18, 2017

  • Marcus Thompson
    Marcus Thompson Aug 18, 2017

    Everything works as per your suggestions (from the manual), until the clutch is RELEASED (side stand up) - then the engine dies!

  • Gregg Mahin
    Gregg Mahin Aug 18, 2017

    Try replacing the clutch lever safety switch

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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MakisRC51

MakisRC51

  • 408 Answers

SOURCE: starting problems

Carbs must be cleaned very well, adjust the vacuum level, the air mixture screws with a gas analyzer and the TPS (if there is one but I think not).Also recheck the valves clearances.Fuel pump ok I suppose.

Posted on Jun 03, 2009

tombones

  • 3567 Answers

SOURCE: Yamaha motorcycle stiff clutch

Disconnect the cable at the engine. Does the cable move freely when disconnected? If it does, remove the left side cover then check the operation of the clutch arm. Does it move freely and spring back freely? If not then clean it up. If it does move freely, remove the clutch push rod from the center case. Roll it on a flat surface. Does it roll smoothly or does it sort of lope along. If bent, replace it. If rolling smoothly then put it back in the center-case and remount the side casing. Lube the clutch cable and remount it also. The adjuster #23 should be screwed in until it is snug then back off the screw 1/4 turn.

Assuming no one has tinkered with the actual clutch and it was operating properly a few months ago or when it was put up for the winter, now is the time for an oil change. Dirty, gritty oil can stiffen a clutch big time. Drain the oil and refill with 10w40 motor oil. No synthetics or oils with "special" additives or friction reducers. No oil marked ECII. Just normal motor oil. Shell, Mobil, Pennzoil, etc., the major brands. Ride the bike for an hour or so then change the oil again. Doing this will flush most all of the grit from the gearbox. Hey, oil ain't that expensive. This should take care of the problem.

A “very helpful” rating on this answer? Thanks!

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Posted on Jul 02, 2009

Anonymous

  • 3 Answers

SOURCE: battery replace tdm 850 yamaha

first remove seat then remove tank, unbolt the 2 nuts holding the fuel pump on then disconnect wiring and then wiring from battery remove 2 bolts holding in battery box and remove through whole where fuel pump was (take care with battery wiring).

Posted on Jul 07, 2009

pugwash814

paul crocombe

  • 377 Answers

SOURCE: yamaha tdm 850

http://www.tdm-trx.nl/Manuals/4TX_97_Suppl.Manual10.pdf

as near as i can find hope it helps

Posted on Jan 24, 2010

heimlich

David Belcher

  • 1978 Answers

SOURCE: what kind of oil does my 1998 yamaha tdm 850

Motorcycle oil JASO MA certified 10w-40 or 20w-50. Don't use any oil that is Energy Conserving it will shorten the life of your wet clutch and transmission gears.

Posted on Jul 30, 2010

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