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Old 07-14-2010, 11:23 AM   #1
alexk243 OP
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Issue with 92 Yamaha TDM 850

Ok, I have been having a heck of a time with my bike. Recently it left me stranded when it ran out of gas. I pulled to the side of the road after the engine died and filled it up with a spare tank, unfortunately the bike would not start even after I added the gas. I have since trailered it back home added more gas and it still will not start.

Any Ideas?
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Old 07-14-2010, 01:15 PM   #2
xtphreak
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Quote:
Originally Posted by alexk243
Ok, I have been having a heck of a time with my bike. Recently it left me stranded when it ran out of gas. I pulled to the side of the road after the engine died and filled it up with a spare tank, unfortunately the bike would not start even after I added the gas. I have since trailered it back home added more gas and it still will not start.

Any Ideas?
vaccum fuel pump lost prime

put a hose in the tank and seal opening with your hand
blow to pressurize the tank

also known as TDM blowjob
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Old 07-14-2010, 02:14 PM   #3
djg
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Add an electric fuel pump, a well known mod.
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Old 07-15-2010, 03:46 AM   #4
xtphreak
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like one off early R6
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Do one thing every day that scares you. Baz Luhrmann
Women and cats will do as they please,
and men and dogs should relax and get used to the idea.
Robert A. Heinlen
Adventure is discomfort recounted at leisure. Flash / GSWayne
Chrome don't get ya home. Rob Nye
Stamp Out Hoplophobia in Our lifetimes.
1999 Tiger 885
1995 XT600E
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Old 12-04-2012, 11:08 AM   #5
alexk243 OP
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Quote:
Originally Posted by xtphreak View Post
vaccum fuel pump lost prime

put a hose in the tank and seal opening with your hand
blow to pressurize the tank

also known as TDM blowjob
Wow, I used to have to do this with my jetskis to prime the diaphragm fuel pump on the carbs, but with those we were able to blow into the return line.

Cant believe I didnt think about that with this bike. I guess I assumed gravity would do the job.
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Old 12-06-2012, 01:45 AM   #6
omeoxlv
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Quote:
Originally Posted by alexk243 View Post
Wow, I used to have to do this with my jetskis to prime the diaphragm fuel pump on the carbs, but with those we were able to blow into the return line.

Cant believe I didnt think about that with this bike. I guess I assumed gravity would do the job.
The other thing for ANY issue with your TDM is to join the
http://www.carpe-tdm.net/ipb/

Graeme
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Old 12-07-2012, 10:08 AM   #7
alexk243 OP
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Yea I am a member there too (same name on both I think) and I have been posting most of my issues there now.
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Old 12-07-2012, 02:54 PM   #8
itsatdm
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I put 67,000 miles on one and only 2 problems. You have Id'd one of them. A early 90 r6 or r1 electric fuel pump for the carbed models will solve one.

The other is when the gas mileage goes into the toilet. Replace the Emulsion tubes with a nickle plated one from Factory Pro. Forget their Jet kit. The skinny needles acts like a saw.
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Old 12-09-2012, 09:25 AM   #9
alexk243 OP
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What do those emulsion tubes from factory pro run? I may look into getting some this winter.

My bike also has their weird issue of just not starting after it gets wet until I take it apart and clean out the carbs. they dont even seem dirty, but it wont start now so I have to tear it apart.
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Old 12-10-2012, 05:43 PM   #10
Baron650
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Thanks for the reminder..
NOT missing dicking around with the carbs on the old TDM!
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Old 12-10-2012, 10:57 PM   #11
itsatdm
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Quote:
Originally Posted by alexk243 View Post
What do those emulsion tubes from factory pro run? I may look into getting some this winter.

My bike also has their weird issue of just not starting after it gets wet until I take it apart and clean out the carbs. they dont even seem dirty, but it wont start now so I have to tear it apart.

I sold my bike 4 years ago so not up to date. Just Google Factory Pro, his site is a rat maze. The owner told me the tubes are stock ones that have been nickel plated for hardness. At the time they were about $5 more than stock. Your carbs are 38mm Mikuni down drafts.

The carbs got to be a PIA. On a run through Nevada and Utah, a side wind at a certain angle and velocity would turn the engine off like blowing out a candle. I got a lot of use of that rubber hose blow job.
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