If the 2 hondas had issues serious enough

MyBobbym
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MyBobbym
To almost cause 2 DNF's.. I wonder what the southwick sand is going to do to those HRC motors? Did Honda ever release what the actual cause was last week?
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Boomslang 7/4/2022 9:26pm
7/4/2022 9:26pm Edited Date/Time 7/5/2022 10:31am
They will have diagnosed the causes by now and will be fine going forward. Unlikely we will get a debrief on what failed.
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LouisianaMotocross 7/4/2022 9:40pm
7/4/2022 9:40pm
I’m sure they have already found the faulty part and fixed the issue.
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Ryan625
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Ryan625 7/4/2022 10:42pm
7/4/2022 10:42pm
I would love to know what happened. But I'm sure we never will.
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Tumic
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Tumic 7/4/2022 10:47pm
7/4/2022 10:47pm
Blue smoke and ran a couple of laps, probably a cracked piston or rings that failed.
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CPR
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CPR 7/5/2022 12:42am
7/5/2022 12:42am
Hunter’s bike had a few puffs of smoke too, but he was smart enough to back it down.
It’s to be expected occasionally in highly stressed race engines. Remember the Yamaha team a few years back? Has happened to Procircuit too etc.
I’m sure HRC are all over it.
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blockhead17 7/5/2022 1:39am
7/5/2022 1:39am
The press release will most likely say “electrical issue” that seems to be the norm these days 🤣
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mx313
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mx313 7/5/2022 1:43am
7/5/2022 1:43am
Hunter said both bikes have been pulled down and they both had the same issue.
I wouldn't be surprised if they had a new part that failed and went back to the last spec engine
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gerg
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gerg 7/5/2022 2:39am
7/5/2022 2:39am
CPR wrote:
Hunter’s bike had a few puffs of smoke too, but he was smart enough to back it down. It’s to be expected occasionally in highly stressed...
Hunter’s bike had a few puffs of smoke too, but he was smart enough to back it down.
It’s to be expected occasionally in highly stressed race engines. Remember the Yamaha team a few years back? Has happened to Procircuit too etc.
I’m sure HRC are all over it.
I see some saying Jett wasn't smart enough to back it down but the race footage of him pointing down and doing the "nup she's dead" hand sign down the main straight indicates he knew what was happening.

Interview here telling he tried backing it off but game over.

https://www.youtube.com/watch?v=uqPrgpgPDws
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crowe660
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crowe660 7/5/2022 2:44am
7/5/2022 2:44am
We’ve seen plenty of bikes finish a moto smoking. To place any blame on Jett, you’re probably just looking for something to blame him for. Shit happens. He’ll be fine.
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Richy
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Richy 7/5/2022 3:00am
7/5/2022 3:00am Edited Date/Time 7/5/2022 3:02am
Agreed, even two failures of the same part are rarely going to be identical, Jett could have backed it down further and it could have blown itself to bits instead while Hunter's happily rolled through the checkers with the same (relatively) careful approach, we'll never know.

All we can really say is there was oil where it shouldn't have been and they were some unhappy red bikes, anything more is speculation and it was a shame to see either way, but yep shit happens.
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wrc777
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wrc777 7/5/2022 5:28am
7/5/2022 5:28am
I would assume some kind of piston failure but that doesn't mean the piston was bad. The mapping could have let it get too hot (maybe Jett melted a hole in his and Hunter backed down enough to keep it from completely failing) or maybe the piston cooling nozzle had some kind of failure. Could be bad metallurgy or anything. They must have had some idea what happened because they didn't blow up in the 2nd moto, and it looked like the privateer KTM had just as much juice (or maybe a bit more). To me that implies they backed off on the mapping.
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Steve125
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Steve125 7/5/2022 5:44am
7/5/2022 5:44am
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and held it on rev limiter for what seemed like way too long, playing it up to the crowd. Did anyone else witness this?
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AH387
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AH387 7/5/2022 6:43am
7/5/2022 6:43am
I wonder if they were just mapped too aggressively and didn't account for how the soil there can stress the bike? Only thing I can think of, since it was on both bikes.
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Leave Us To
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Leave Us To 7/5/2022 7:02am
7/5/2022 7:02am
MyBobbym wrote:
To almost cause 2 DNF's.. I wonder what the southwick sand is going to do to those HRC motors? Did Honda ever release what the actual...
To almost cause 2 DNF's.. I wonder what the southwick sand is going to do to those HRC motors? Did Honda ever release what the actual cause was last week?
Number of years ago Pro Circuit team's riders' motors all blew up due to a faulty component from a supplier.
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Gravel
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Gravel 7/5/2022 7:10am
7/5/2022 7:10am
Steve125 wrote:
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and...
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and held it on rev limiter for what seemed like way too long, playing it up to the crowd. Did anyone else witness this?
As an old guy who’s always raced on a shoestring budget, watching riders pin it on the rev limiter for fun feels so wrong. Logically I love it when the factory guys break things because it’s (theoretically) helping make tougher bikes, but it just bugs me.. and maybe Honda won’t like it pre-race?
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Money
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Money 7/5/2022 7:15am
7/5/2022 7:15am
Redbud and south wick will make an engines detonate like no other track can for some reason.
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Cygrace74
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Cygrace74 7/5/2022 7:43am
7/5/2022 7:43am
All I know is jetts motor lasted 5 seconds long enough. It blew up coming into the corner after the landing of that decent uphill jump. Could of been real bad I was surprised he was still jumping stuff
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wrc777
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wrc777 7/5/2022 7:49am
7/5/2022 7:49am
Money wrote:
Redbud and south wick will make an engines detonate like no other track can for some reason.
Deep, sandy soil that lets you keep it pinned most of the way around the track will do that.
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mtl
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mtl 7/5/2022 8:33am
7/5/2022 8:33am
Steve125 wrote:
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and...
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and held it on rev limiter for what seemed like way too long, playing it up to the crowd. Did anyone else witness this?


There is a very good thread that the Factory Connection engine builder (I believe his name is Kibby) started in this forum that speaks to this much better than I ever will.


The main takeaway I had was: Hitting the rev limiter on the engine doesn't kill the engine. Load under low RPM is where the damage comes from.
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sebastianer 7/5/2022 8:51am
7/5/2022 8:51am
could have been an bad batch of fuel also but its probably a piston ringland crack or something with piston
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eric513anderson 7/5/2022 9:13am
7/5/2022 9:13am
Steve125 wrote:
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and...
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and held it on rev limiter for what seemed like way too long, playing it up to the crowd. Did anyone else witness this?
mtl wrote:
There is a very good thread that the Factory Connection engine builder (I believe his name is Kibby) started in this forum that speaks to this...


There is a very good thread that the Factory Connection engine builder (I believe his name is Kibby) started in this forum that speaks to this much better than I ever will.


The main takeaway I had was: Hitting the rev limiter on the engine doesn't kill the engine. Load under low RPM is where the damage comes from.
I agree 100%. Lugging an engine is harder on it than revving the piss out of it
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fourfourone
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fourfourone 7/5/2022 9:19am
7/5/2022 9:19am
I have a hard time believing that lugging a motor is harder on it than riding on rev limiter all around the truck.
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mxtech1
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mxtech1 7/5/2022 9:26am
7/5/2022 9:26am
fourfourone wrote:
I have a hard time believing that lugging a motor is harder on it than riding on rev limiter all around the truck.
Not lugging, but scenarios where the engine is experiencing extremely high torque loads in the mid-RPM range with 100% throttle being applied. High torque loads generate more heat than free-revving at the top of the RPM range.

Red Bud is one of those tracks where most straights, & even a good majority of the corners, allow for 100% throttle.
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JBoneMotorworks 7/5/2022 9:33am
7/5/2022 9:33am Edited Date/Time 7/5/2022 9:34am
I have been racing Southwick since 94', I have had brand new bikes out of the crate feel like the clutch was smoked after (1) lap, and it was about to blow up, had to jet them FAT to keep them from nading.
They will be finding sand in places they never thought they had places after the Wick..hope they can adjust the maps top compensate, for those who have never ridden in sand like that, it bogs down the motor BAD. I have a Rockstar 450 and in 3rd/4th gear it feels like someone is pulling on the rear fender under heavy loads.
Be there this week to witness it!
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MX Culture
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MX Culture 7/5/2022 10:09am
7/5/2022 10:09am
Steve125 wrote:
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and...
My friend was there and he said that on the Moto 1 parade lap Jett and a couple other top guys stopped on Larocco's leap and held it on rev limiter for what seemed like way too long, playing it up to the crowd. Did anyone else witness this?
That was the Moto Combine amateurs that did that right before the Pro's went out.
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lumpy790
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lumpy790 7/5/2022 10:11am
7/5/2022 10:11am
Carb was running lean and melted the piston Silly
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Leeham
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Leeham 7/5/2022 10:27am
7/5/2022 10:27am
Im just waiting for the one guy who says he will never buy a Honda because of what happened to Jetts bike lmfao

Bad luck. Happened to Star and Pro Circuit a couple years ago. Several bikes shitting the bed in one day. Faulty part from supplier or whatever
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hubbardmx50
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hubbardmx50 7/5/2022 10:37am
7/5/2022 10:37am
People are blowing this way out of proportion. 6-7 years ago 250s blew up all the time. Remember high point when both Martin bros blew up bikes? HRC (and also a lot of the other 250 teams) haven't had any mechanical fails in a long time so this one just seems like a big deal when it's really not. Guarantee those bikes will run fine at the Wick
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gerg
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gerg 7/5/2022 2:40pm
7/5/2022 2:40pm
FWIW we'll probably never hear of the cause, unless ML could shed some light.

The fact that both engines experienced the same issue (with one failing completely) seems to indicate that the team knew what the issue was and how to prevent it happening again...of course pure speculation.

Does anyone know if they had complete spare bikes or the team did a complete engine swap on both bikes before moto 2?

If the latter then very impressive.
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