HotRodZilla
GOD BLESS AMERICA
If it's not coming out of gear, you may not need to split the cases. Once it slips, how do you make it stop and get past it?
Feels like my FJR is jumping a cog in 2nd gear
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As bad as it sounds, I have been staying on the gas to figure out what is happening. The power interrupts for 1/2 a second before coming back in like nothing happened, until it does it again around 8K. I figure it's screwed anyway. I'll see if I can make a video.
BanjoBoy
Well-known member
Wow, that's weird!
Has this bike had all it's recalls done, especially the throttle position sensor recall?
Does it have a Power commander?
Don't sound like a tranny thing to me, more an electronics thing.
BkerChuck
Second hand vegetarian
Okay the more you describe this the less it sounds like the shifter arm and transmission dogs. When they are worn there is a very clearly felt "pop" out of gear and the a "hit" when they reengage. Disregard the dash gear indicator though as it will not always or accurately show the dropped shift. On the FJR I test drove with a bad second gear I could get the bike to pop in and out just by grabbing a handful of throttle at almost any RPM I chose. Brisk acceleration and the bike would slam in and out of second gear lurching down the road like a pogo stick Truly unridable. This was a used bike for sale at a dealership that I went along with a friend to look at. When I spoke to the sales staff they finally admitted when that unit was traded in they only rode it around the parking lot and had never given it a real test drive. They were learning fast that they screwed up and would likely end up way deep in repairs on that unit.
It's odd that you're unable to get the issue to occur in any other gear. I'm leaning towards BanjoBoy's thought of an electrical glitch. How is throttle response in other gears at or near the same RPM range? Ridden gently past second gear, how does the bike run otherwise? Any odd noises, poor throttle response, lousy fuel mileage, Anything out of the ordinary? Is there another forum member with some miles under their seat that can take your bike for a spin and get another opinion? Have you left anyone else ride it like a dealership tech to see if the bike does it for them? Not trying to grasp at straws here just really curious and want to see what the culprit is. .
It's odd that you're unable to get the issue to occur in any other gear. I'm leaning towards BanjoBoy's thought of an electrical glitch. How is throttle response in other gears at or near the same RPM range? Ridden gently past second gear, how does the bike run otherwise? Any odd noises, poor throttle response, lousy fuel mileage, Anything out of the ordinary? Is there another forum member with some miles under their seat that can take your bike for a spin and get another opinion? Have you left anyone else ride it like a dealership tech to see if the bike does it for them? Not trying to grasp at straws here just really curious and want to see what the culprit is. .
Well, no power commander, and no open recalls. This is my 2nd FJR and I wouldn't say I notice a single thing on the bike that's not doing what it supposed to, other than this. I really need to make a video and will try to get it done this weekend.
I'm also starting to wonder if it's electrical, maybe if you guys can hear what's happening that will help.
I'm also starting to wonder if it's electrical, maybe if you guys can hear what's happening that will help.
wetwolf
Well-known member
Clutch slipping????
I have no patience
Suddenly doesn't feel like the tranny, sounds like someone is punching my FJR in the stomach
It skips three times, hard at 4500, then not so hard at 6500 and 8000
It skips three times, hard at 4500, then not so hard at 6500 and 8000
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BkerChuck
Second hand vegetarian
Bear in mind I'm at work with ****** speakers but that almost sounds like ignition cut out to me. It sounds similar to hitting a rev limiter where the bike drops spark for a second to prevent damage. Seems really weird that it's only in second gear though. That sounds nothing like the bikes I've ridden with the real second gear issue. They pop and clunk in a much more mechanical, metallic sound than that.
I experienced this same thing on a test ride for an '85 FJ1100 many yrs ago... roll on the gas in second and it made this mechanical jerking/skipping very similar to your video. The skipping was very quick almost like a very short ignition/electrical cut-out but it all made sense after the owner fessed up once I pressed him. NO sale! IMO, it's your 2nd gear and that's a case split to fix. The fact that it only occurs in 2nd further supports this...
Regards,
Mr. BR
Regards,
Mr. BR
It does kind of feel like it's not getting fuel or spark, I'll have to see if it's at the exact same RPM every time. If yes, probably electrical. If not, probably mechanical.
I wonder if the ECU uses a different map for each gear?
I wonder if the ECU uses a different map for each gear?
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OldernYZer
Active member
This issue rarely starts by bending the shift fork, but it almost always ends up bending the shift fork. Engineering and build fit can contribute to it if the bike ends up without a deep enough mesh of the locking lugs/slots that engage the gear selected. But what feeds into it the most is "lazy" shifting; moving the lever relatively slowly from one gear to the next so that they "grind" or clatter while engaging. That's usually more noticeable during downshifts.
The correct method does not involve preloading the shifter. As pointed out earlier here, that simply puts unnecessary wear on the shift fork. Just move the lever quickly and positively when shifting and it will minimize the wear experienced by the lugs during the shift.
That's not a fix for anything once this condition starts, though. It's just the best way to keep the problem from surfacing in the first place.
The correct method does not involve preloading the shifter. As pointed out earlier here, that simply puts unnecessary wear on the shift fork. Just move the lever quickly and positively when shifting and it will minimize the wear experienced by the lugs during the shift.
That's not a fix for anything once this condition starts, though. It's just the best way to keep the problem from surfacing in the first place.
Did you happen to watch the video? I can't hear anything mechanical. Also, how could there not be a fix?
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BanjoBoy
Well-known member
Watch'in the video, that's totally weird!
That'd be my guess, since it only happens in 2nd gear. Have you checked the on board diagnostics ta see if there's any error codes? An ECU flash might fix it?
eflyguy
Well-known member
re: the video, I'm pretty sure that's what mine does as well, just a momentary cut in power, only in second, and only when WFO (or near). It happened once, so I immediately decided I should not let it happen again. Since then, I think it's happened one more time - I've been riding "around" the problem. I guess I need to go for a ride and test it out...
Interesting conversation with best dealer in the area, guy said they have seem this before but it all gears, not just 2nd. He said tightening the positive connection to battery and bleeding the clutch help but did not resolve it. They even had someone from Yamaha look at it, never got fixed.
It's pretty easy to ride around, but at this point pretty much impossible to sell or trade because I want a 2016 in the spring.
It's pretty easy to ride around, but at this point pretty much impossible to sell or trade because I want a 2016 in the spring.
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wfooshee
O, Woe is me!!
That video sure looks like the dogs slipping to me...
RossKean
Well-known member
I am pretty sure that there is no mapping differences between the different gears - don't think the ECU knows which gear you are in. If the issue was due to a slipping clutch, it would be worse with a roll-on throttle in fourth and fifth than in second gear. Pretty sure you must have the infamous (but still fairly rare) 2nd gear issue. Afraid there is nothing other than a case split and replacement of dogs/forks to fix it.
Given that it's only 2nd gear that makes a lot of sense, now I keep going back and forth
I have someone interested for $3750, it had a tipover so I think it's well priced, I don't have the stomach to fix it and I got it bad for a 2016 6 speed.
I have someone interested for $3750, it had a tipover so I think it's well priced, I don't have the stomach to fix it and I got it bad for a 2016 6 speed.
wfooshee
O, Woe is me!!
The dog slip sound is not the same sound as actually shifting gears. It's not even the same as a false neutral, but it's closer to that. Technically, it is a very momentary false neutral...
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