ranger1
TY 4 Stroke Guru
During a 160 mile ride the other day I noticed a vibration in the steering that progressively got worse throughout the day. When I got home the first thing I did was take off the secondary to check the bearing. Upon wiping the grease off the seal, pieces of the inner metal part of the bearing that seats on the jackshaft fell out!!!!! I had cleaned & greased this at the beginning of the season.
Has this happen to anybody & what would cause this???
The previous owner must have changed this bearing before as it is not the original one. Is it not strange that this bearing needs to be changed twice in 6000 miles??
Has this happen to anybody & what would cause this???
The previous owner must have changed this bearing before as it is not the original one. Is it not strange that this bearing needs to be changed twice in 6000 miles??
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teamyamaha
Extreme
To me it looks like lack of lubrication. What color was the grease when you repacked the bearing?
tomanytoyz
Lifetime Member
Strange.maybe improper install? someone beat on it
ranger1
TY 4 Stroke Guru
It wasn't broke when I repacked it.tomanytoyz said:Strange.maybe improper install? someone beat on it
It's really a piss off as I spent many many hours & over a $1000 in preventative maintenance to this new to me sled so that I wouldn't have any issues this winter!
It is probably recommended to change the jackshaft as I have read that they tend to break around 10,000 miles. Bearing + jackshaft =$300-$400ish + more labour & downtime!!!!
ecopter
TY 4 Stroke Guru
Driver shaft; not jack shaft.
ranger1
TY 4 Stroke Guru
I took the secondary off myself & know the difference between the two, lol!! Notice the splines on the end of the shaft? Speedo shaft does not have that + it don't stick out that far......or at all for that matterecopter said:Driver shaft; not jack shaft.
yamaha1973
TY 4 Stroke Master
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I think he means the drive shafts are know for breaking, not the jack shaft
ranger1
TY 4 Stroke Guru
Oh ok, so it wasn't the the jackshafts that were prone to break, it was the drive shafts? So yamaha1973, do you think my jackshaft should be ok? Just change the bearing & should be good to go?yamaha1973 said:I think he means the drive shafts are know for breaking, not the jack shaft
yamaha1973
TY 4 Stroke Master
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How many miles on the sled? They seem to break at around 10,000...
ranger1
TY 4 Stroke Guru
ecopter, sorry if I enterpreted your response wrongly, I thought that you thought I identified the wrong shaft,lol!! The drive shafts were the ones having breakage problems....I get it nowecopter said:Driver shaft; not jack shaft.
ranger1
TY 4 Stroke Guru
Well the drive shaft has been replaced by the exsisting owner with extrovert drivers which comes complete with it's own shaft.yamaha1973 said:How many miles on the sled? They seem to break at around 10,000...
APEX 06
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Check the chain case you may have a bearing that is bad. It would vibration of the shaft. Is you grease a low time.
Irv
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Could be a cheap aftermaket bearing that the original was replaced with?
I have heard on here when it's time to replace said bearings, don't cheap out, get the Yamaha bearings?
I have heard on here when it's time to replace said bearings, don't cheap out, get the Yamaha bearings?
THKSNOW
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ranger1 said:I repacked it with white synthetic, it now looks grey.teamyamaha said:To me it looks like lack of lubrication. What color was the grease when you repacked the bearing?
I wonder if that "white synthetic" grease is heavy enough for a bearing. I clean (WD40) and re-grease every year using the same bearing grease as I used on my trailer. 14,361 miles later I've replaced driveshaft bearing at 6,000 & 12,000 and the jackshaft bearing is original.
ranger1
TY 4 Stroke Guru
I have trailer grease, maybe I will start using that instead, thanks for the tipTHKSNOW said:ranger1 said:I repacked it with white synthetic, it now looks grey.teamyamaha said:To me it looks like lack of lubrication. What color was the grease when you repacked the bearing?
I wonder if that "white synthetic" grease is heavy enough for a bearing. I clean (WD40) and re-grease every year using the same bearing grease as I used on my trailer. 14,361 miles later I've replaced driveshaft bearing at 6,000 & 12,000 and the jackshaft bearing is original.
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