Why the Tomac smoke out the rear?

soggy
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3/5/2024 5:36pm

People acting like it’s the shock and Eli was still able to go as fast as he was is some crazy logic. 

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MxAddic
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3/5/2024 5:41pm Edited Date/Time 3/5/2024 5:47pm
soggy wrote:

People acting like it’s the shock and Eli was still able to go as fast as he was is some crazy logic. 

It's crazy logic to think the shock could leak enough to make puffs of smoke and still contain enough oil to maintain damping?

On the Yamaha reverse design the headpipe is right there.

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soggy
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3/5/2024 5:45pm
soggy wrote:

People acting like it’s the shock and Eli was still able to go as fast as he was is some crazy logic. 

MxAddic wrote:
It's crazy logic to think the shock could leak enough to make puffs of smoke and still contain enough oil to maintain damping? On the Yamaha...

It's crazy logic to think the shock could leak enough to make puffs of smoke and still contain enough oil to maintain damping?

On the Yamaha reverse design the headpipe is right there.

Yea. 

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MxAddic
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3/5/2024 5:53pm Edited Date/Time 3/5/2024 5:55pm
soggy wrote:

Yea. 

Shocks leak fluid and still maintain damping everyday so I guess your wrong. Just because a shock is leaking does not mean it has no damping.

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The Shop

Timo
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3/5/2024 6:24pm
soggy wrote:

Yea. 

MxAddic wrote:

Shocks leak fluid and still maintain damping everyday so I guess your wrong. Just because a shock is leaking does not mean it has no damping.

I've never had a dirt bike shock have that slow of a leak. They are at ~150psi static and when the seal fails it's pretty catastrophic. Mine have always been in desert whoops, everything is fine, then your on a pogo stick...

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soggy
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3/5/2024 7:04pm
MxAddic wrote:

Shocks leak fluid and still maintain damping everyday so I guess your wrong. Just because a shock is leaking does not mean it has no damping.

Maybe if it’s being ridden on dirt roads. But under the pressures SX creates there’s now way it wouldn’t effect the dampening. Not to mention the increase in cavitation. 
 

Eli is also very sensitive to his shock setup as we know. So a blown shock would definitely throw off his race. 

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3/5/2024 7:58pm

I heard it was the WP air forks that he was secretly running but don't tell anyone I told you.  

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twodogsms1
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3/5/2024 8:16pm
everyone reverts to clutch, but if you think about it i think it was the valve seals, i think the bike sucked sand, and ruined the...

everyone reverts to clutch, but if you think about it i think it was the valve seals, i think the bike sucked sand, and ruined the valve seals, bike sucks air from front and there were multiple moments he and his bike inhaled sand in the sand section, if clutch got smoked it think it was from the lack of oil due to it burning it cause valve seals experienced sand, glass media in valve stems, valve seats, that whole engine was smoked on lap 5 of running right behind some ones scoop tire....

 

Yamaha frontward air suction motors are notorious for intake valves, seats, guides, seals getting worn.

he said clutch felt fine.... smoke was oil burning due to valve seals, im telling you!

Yeah, that's why my '93 300k mile Chevy smokes, it's been suckin' sand!!!

But that's only on startup, then it quits.......????

I musta got self-sealing valve seals or sumthin, I dunno......

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Goon645
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Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

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MxAddic
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3/6/2024 5:07am Edited Date/Time 3/6/2024 5:09am
Goon645 wrote:
Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be...

Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

Actually they are so determined to tell me I am wrong about something they are willing to die on an ant hill.

 

while.png?VersionId=PZWYo17cKJ

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3/6/2024 5:36am

I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was.

Pulp reported that Yamaha told him it was a leaking Valve cover gasket.   

I guess sometimes its more fun to think up what it could be, rather than know what it was?  

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MxAddic
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3/6/2024 5:46am Edited Date/Time 3/6/2024 5:55am
I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was...

I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was.

Pulp reported that Yamaha told him it was a leaking Valve cover gasket.   

I guess sometimes its more fun to think up what it could be, rather than know what it was?  

"It's the clutch"

"It's the valve cover"

"It does that when I get it hot"

"I never looked at my pit board"

If you believe any of that you're a moran...

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OldTech
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3/6/2024 5:47am

At a normal  SX the engine oil will last all day and a clutch service is routine. Eli must have been very hard on it and  someone changed the oil. The oil fill is usually removed on the covers they run,so it has to be filled from the top cover. Got a little pinched, no big deal, he finished,got second all good!

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MxAddic
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3/6/2024 6:07am
OldTech wrote:
At a normal  SX the engine oil will last all day and a clutch service is routine. Eli must have been very hard on it and ...

At a normal  SX the engine oil will last all day and a clutch service is routine. Eli must have been very hard on it and  someone changed the oil. The oil fill is usually removed on the covers they run,so it has to be filled from the top cover. Got a little pinched, no big deal, he finished,got second all good!

If you had the clutch cover off to replace the clutch why would you pull the valve cover to add oil?

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OldTech
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3/6/2024 6:30am
OldTech wrote:
At a normal  SX the engine oil will last all day and a clutch service is routine. Eli must have been very hard on it and ...

At a normal  SX the engine oil will last all day and a clutch service is routine. Eli must have been very hard on it and  someone changed the oil. The oil fill is usually removed on the covers they run,so it has to be filled from the top cover. Got a little pinched, no big deal, he finished,got second all good!

MxAddic wrote:

If you had the clutch cover off to replace the clutch why would you pull the valve cover to add oil?

They usually just lay it over to do the clutch. Service was probably a little more that time 

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toroP
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3/6/2024 6:45am Edited Date/Time 3/6/2024 6:47am

Webb’s bike looked to be smoking in the heat race. Check out Dean Wilson’s YouTube vid at 6:29. Slo-mo will help.

davis224
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3/6/2024 6:47am
I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was...

I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was.

Pulp reported that Yamaha told him it was a leaking Valve cover gasket.   

I guess sometimes its more fun to think up what it could be, rather than know what it was?  

If it walks like a duck, quacks like a duck, looks like a duck, and an expert points at it and says "that's a duck", it's obviously a conspiracy and you are not to believe anything duck related.

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lumpy790
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3/6/2024 6:59am

This is nothing new since ET’s clutch technique has always toasted clutches on the Kawasaki’s and now Yamahas.

Smoke seen is coming from the crankcase breather hose. The 2023 2024 Yamaha YZ450F stock crankcase vent system routes the crankcase pressure / oil mist to the air box and down the intake and through the motor.

IMG 0121 1  

Teams remove this type of system and run a vent hose behind and below the engine to atmospheric pressure eliminating any lost horsepower from air box pressure negative and positive changes and oil mist affecting jetting.

As the clutch abuse slipping heats the clutch pack it expands so clutch play decreases then slipping from lack of slack increases the heat even more till its constantly slipping and plates get so hot the oil starts smoking out the crankcase breather.

Hydraulic clutch’s self adjust eliminating this potential problem.

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MxAddic
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davis224 wrote:
If it walks like a duck, quacks like a duck, looks like a duck, and an expert points at it and says "that's a duck", it's...

If it walks like a duck, quacks like a duck, looks like a duck, and an expert points at it and says "that's a duck", it's obviously a conspiracy and you are not to believe anything duck related.

bs.jpg?VersionId=GRTOiEl7LslB1o

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soggy
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3/6/2024 7:21am
Goon645 wrote:
Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be...

Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

Cause it wasn’t the clutch. 

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soggy
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3/6/2024 7:33am

Why do people want it to be the shock so bad?  Yamaha admitted there was a problem. Why would they benefit from saying it was something it wasn’t. 

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MxAddic
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3/6/2024 7:43am
Goon645 wrote:
Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be...

Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

soggy wrote:

Cause it wasn’t the clutch. 

LMFAO! Like you would know.

 

IMG 1422%5B1%5D.JPG?VersionId=Ano

 

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Press516
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3/6/2024 7:47am
soggy wrote:
Why do people want it to be the shock so bad?  Yamaha admitted there was a problem. Why would they benefit from saying it was something...

Why do people want it to be the shock so bad?  Yamaha admitted there was a problem. Why would they benefit from saying it was something it wasn’t. 

Agree, absolutely not the shock.  Any loss of oil or pressure in an MX bike shock would make it impossible to ride at race speed.  These aren't low pressure car/truck shocks.  Clearly someone that can't see the forest for the trees...  

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Press516
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3/6/2024 7:50am
Goon645 wrote:
Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be...

Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

soggy wrote:

Cause it wasn’t the clutch. 

MxAddic wrote:
LMFAO! Like you would know.      

LMFAO! Like you would know.

 

IMG 1422%5B1%5D.JPG?VersionId=Ano

 

Maybe you missed it...  it was reported early on that his team put "clutch" on his pit board, then after the race they confirmed to multiple sources that it was a valve cover gasket leak.

Damn...

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fourfourone
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3/6/2024 7:51am Edited Date/Time 3/6/2024 7:55am
Goon645 wrote:
Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be...

Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

soggy wrote:

Cause it wasn’t the clutch. 

MxAddic wrote:
LMFAO! Like you would know.      

LMFAO! Like you would know.

 

IMG 1422%5B1%5D.JPG?VersionId=Ano

 

@MxAddic     Why do you follow Soggy around like a weak puppy dog....? 

Hank_Thrill
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3/6/2024 7:54am
TbonesPop wrote:
And I don't buy for an instant that Tomac didn't notice it with the bike and it didn't impact his ability to ride it.  These guys...

And I don't buy for an instant that Tomac didn't notice it with the bike and it didn't impact his ability to ride it.  These guys can feel microscopic adjustments in anything from air pressure, frame stiffness, clutch feel, etc.  We know Eli likes a cable over hydraulic just based on feel - he had to feel there was an issue for over half the race.  He just wasn't going to make any excuses and props to him for that.  Rest assured he knew he was dealing with an issue - and it had to have had some level of impact on his riding.  He just wasn't making excuses.

x2

I think he was saving the bike until the end to get around Sexton, because when it was crunch time he blew past him, or seemed to pass Sexton will relative ease once they were down to the last few minutes. 

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bvm111
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3/6/2024 7:55am Edited Date/Time 3/6/2024 7:57am

Jesus people why is it so hard to believe it was the explanation that yamaha gave to pulp. Eli is notorious for not pushing if something is off so no way it was the shock, Eli maintained his speed, he stated on the podium his bike was functioning fine, the smoke was obviously not coming from the breather hose as it usually does when he waists his clutch it was billowing from around the engine, the head gasket leak doesn’t mean it was puking all the oil out of the motor but just enough to hit the exhaust usually when he would land or g out… why would you hang on to the two things speculated on the broadcast that will affect the overall performance of the motorcycle, that just makes no sense. 

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3/6/2024 7:59am
I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was...

I love how people have posted the response  Yamaha gave pulp several times and it gets ignored and people keep posting what they think it was.

Pulp reported that Yamaha told him it was a leaking Valve cover gasket.   

I guess sometimes its more fun to think up what it could be, rather than know what it was?  

MxAddic wrote:
"It's the clutch" "It's the valve cover" "It does that when I get it hot" "I never looked at my pit board" If you believe any...

"It's the clutch"

"It's the valve cover"

"It does that when I get it hot"

"I never looked at my pit board"

If you believe any of that you're a moran...

When they asked on live TV the mechanic made a guess based off of the past. After the race they revised what they said when they knew what it was.

How do they benefit from saying it was a leaking gasket ?   I mean if nobody is going to believe anything that riders or teams say , why  even ask the questions at all?   Call me crazy but if they were going to lie about it. Why not stick to the same story and say it was the clutch??   

  

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soggy
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3/6/2024 8:14am Edited Date/Time 3/6/2024 8:15am
Goon645 wrote:
Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be...

Can you geniuses then explain why it clearly smoked more on g outs and landings and specifically didn’t through tight corners where clutch use would be especially heavy? You can have a leaking shock and maintain damping for a period whilst the oil totally depletes. Also his shock squeaks loudly on landing so they’re running a weird setup for sure. He’s blamed bike issues previously when it did actually hinder him. Did you see smoke in his heat race? Was the result any different? All this moaning about Jett fans when Tomac fans are incapable of just believing their eyes and ears. 

soggy wrote:

Cause it wasn’t the clutch. 

MxAddic wrote:
LMFAO! Like you would know.      

LMFAO! Like you would know.

 

IMG 1422%5B1%5D.JPG?VersionId=Ano

 

well at the time of the race thats what the team was speculating. then it was announced by the team that it was an oil leak from the valve cover. sometimes you dont have all the info and your stance can change as more info becomes available. one thing is for sure. it was not the shock. 

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