Posts
6
Joined
1/16/2020
Location
Barrigada, GU
US
Edited Date/Time
1/20/2020 10:36am
I have a 2018 yz450f and with less than 25 hrs on it and the trans gear for third is hitting false neutral on heavy load and this is very disappointing and upsetting because we spend 9k for the bike and no warranty after 6 months when this clearly other people who have said they have experienced same problem with their yz450f 2018 model it’s a factory defect obviously and there’s no one at Yamaha saying anything about it there is something about there transmission in the bike that they are not doing right
Good luck to you.
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I'd check the dog undercuts on 3rd and get a gear man's opinion on whether to increase the angle for a better lock. SOP on some older transmissions.
There may be an under or over selection/travel issue that can be fettled or adjusted out.
On a serious note, I had a few issues early on with my 2018 YZ450 in 3rd popping out of gear into a false neutral. Knock on wood, it hasn't happened again in over 20 hours of ride time....knock knock. At about 60 hours now and its been rock solid for months.
Maybe just ride through it? Gotta be extra careful on jump faces, ask me how I know.... (my nuts were half way up my ass, but other than that I was perfect)
People will help you here for sure. But reading your posts is painful.
Pit Row
I've had it happen on my yz250 once so far I know others who've had it happen multiple times.
It's a great feeling when you're wide open in 3rd gear and it suddenly jumps out of gear. Then back into gear and then slips a couple more times very quickly. All within about 60 feet and you didn't even touch the shift lever.
Oil changes don't effect it i swap mine every 3 hrs and use maxima 80wt. I don't stomp on the lever i do shift without the clutch but I'm not shifting under a load either. I back off the throttle before I shift.
I wonder if Yamaha is only a 3 prong gear dog setup like they do on the yz250. Funny how my yz125 has never had this problem. It gets shifted more per lap than the 250 ever does and it's transmission always looks good.
Popped out a few times under heavy load, after it did it on a jump face and nearly killed me I took it apart to have a look. I got it undercut and now it shifts smooth as butter and never pops out.
I don't know why but i have the feeling he uses the clutch as much as the ponctuation.
Just kidding of course, sorry to hear he is having trans issues.
On yamaha though, top of the frames and transmissions (3rd and 5th) have had some flaws for many many years.
Big difference..
Yamaha should step to the plate- at least offer parts only free of charge.
Post a reply to: 2018 yz450f trans issue should be a recall Yamaha needs to address this