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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Thu Jan 05, 2017 4:40 pm 
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Rear side panel trims are different

On the 47X bikes the frame was fitted with foam rubber trims as shown at the top of this photo.The lower trims in the photo are 1GE and not fitted to 47X bikes.

The part numbers are 47X2173200 and 47X2173500

Image

You can see the seals fitted in this photo

Image



The 1GE bikes just had the rubber trims fitted to left hand side panel and the right battery side panel shown in this photo.

The part numbers are 1GE2173200 and 1GE2173500

Image


Last edited by jackson.40 on Sat Jan 07, 2017 2:02 pm, edited 1 time in total.

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Jan 07, 2017 1:53 pm 
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The belly pans fitted to the 47X bikes had support brackets fitted to the rear.

These brackets were not fitted to 1GE bikes or the fixings they needed.

47X

Image

1GE

Image


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Thu Jan 12, 2017 3:40 pm 
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The 1GE bikes had green translucent coolant and oil tanks,the 47X bikes had non-translucent black tanks.

Also the 47X and 1GE coolant tanks have different pipework.

1GE COOLANT TANK

Image


1GE OIL TANK

Image

47X COOLANT TANK

Image


47X OIL TANK

Image


Last edited by jackson.40 on Wed Mar 22, 2017 1:01 pm, edited 2 times in total.

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Thu Jan 12, 2017 5:02 pm 
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Those translucent tanks seem more prone to cracking than the earlier tanks, my (1GE) oil tank had a leak at the top which turned out to be a section of the tank that had become brittle, once removed it was obvious the whole thing was brittle, ive changed it to a 47X tank and have a spare coolant tank from a 47X when the need arises for that.

Yamaha made them a bit too thin to make them translucent maybe?


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Jan 14, 2017 1:55 pm 
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Exhaust end can gaskets are different on the 47X and 1GE bikes

47X END CAN GASKET

Image


1GE END CAN GASKET

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Jan 14, 2017 2:30 pm 
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The carb overflow pipes routing was different on the 47X bikes and the 1GE bikes

The 47X bikes had the overflow pipes fitted through the front belly pan stay brackets,but because they leaked fuel so much it melted the belly pan

Yamaha brought out this TSB for the 47X bikes to have the overflow pipes replaced with longer ones that cleared the back of the belly pan.

This is how the 1GE bikes left the factory

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Jan 14, 2017 7:30 pm 
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My October 84 47x had that mod from new - nice detective work Steve


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Jan 14, 2017 9:54 pm 
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Never ceases to amaze, I bet the most long serving engineer in Yamaha's product development department couldn't tell you this stuff. Brilliant.


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sun Jan 15, 2017 4:21 pm 
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Today`s engineers often couldn`t tell you why they did something 10min ago :smt005

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sun Jan 15, 2017 4:39 pm 
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Considering the tools they had to work with years ago I think it's amazing that they managed to do what they did. Of course, back then they had common sense and knew what worked and what didn't. Now every part is computer designed and slapped together to create a bike, often with interesting results.

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Mon Jan 16, 2017 2:40 pm 
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The under fuel tank heat shield changed between 47X and 1GE

The 47X item was a tray

Image

The 1GE item just a flat heat shield

Image


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Feb 25, 2017 8:00 pm 
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I was removing end can studs for replating on some 47X and 1GE end cans and noticed they were different

47X end can studs are 28mm long

1GE end can studs are 32mm long

Image

Image


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sat Feb 25, 2017 8:30 pm 
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Probably the reason why reference number are differents : 47X-14753-02 vs 47X-14753-01


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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Sun Aug 06, 2017 3:01 pm 
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The mirror bolts are a different size between the 47X and 1GE bikes,because of this difference the front frame stay's are different.

The 47X bikes used mirror bolt part number 90105-10330 (10mm bolt) and use front frame stay 47X2832600

Image

Image


The 1GE bikes used mirror bolt part number 91026-08025 (8mm bolt) and use front frame stay 1GE2835600

Image


Last edited by jackson.40 on Mon Aug 07, 2017 3:52 pm, edited 1 time in total.

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 Post subject: Re: 47X AND 1GE WHAT THINGS ARE DIFFERENT ?
PostPosted: Mon Aug 07, 2017 6:08 am 
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Hi Steve,

Interesting to see - the sub-frame is different as well - looks like spacing as well as size of the mirror nut threads for the bolts as described above

Cheers
Paul


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