Yamaha IT490 gearbox parts

[bruiser]

Hi,
I am looking for Yamaha IT490 Gearbox parts. In particular part number 4V6-17141-01-00 GEAR,4TH PINION, new or in good secondhand condition. This 4th gear is located on the layshaft...Also the internal Clutch push rod.

Thanks

Bruiser.

[Viper666]

I'm sure you already know this but for anyone else reading this the same gears were in IT465H/J 81/82 IT490K/L 83/84 & the clutch rod is out of a YZ465G/H YZ490J/K/L/N/T/U/W/A & WR500 ZD/ZE  1980-1993

(According to Yamah.com & others)

Perko

[bruiser]

Hi,

I am looking for gearbox parts for a IT465/490 5 speed. for a engine that I am trying to revive... the parts I need in particular are part numbers 4V6-17141-01-00 GEAR,4TH PINION and 3R5-17131-02-00 GEAR,3RD PINION...which are located on the layshaft... I also need the the clutch internal Push rod. part number 3R5-16357-01-00 ROD,PUSH 2
New or good second and condition.

Please refer to the items clouded on the attached.



Thanks

Bruiser

[crossedup2]

Bruser

Common blow up in the 465/490's is 3rd gear. NLA anywhere world wide via Yamaha. Both the YZ's and the IT's have that one gear in the cluster in common
Second hand will be very hard to find also. I know of a bloke who end up fitting a 250 motor until he found the parts in USA only to blow 3rd gear again 6 months.

Good luck.

Peter B

[bruiser]

Hi Crossedup2,

Thanks for your advice mate.

Regards,

Bruiser

[bruiser]

Hi guys,

I am still trying to find these parts below

4V6-17141-01-00 GEAR,4TH PINION
4V6-17241-01-00 GEAR,4TH WHEEL

3R5-17131-02-00 GEAR,3RD PINION
3R5-17231-03-00 GEAR,3RD
I also need the the clutch internal Push rod. part number
R5-16357-01-00 ROD,

Thanks
Bruiser

[the stig]

    I believe there is a guy in Melbourne that is making gears for

    these bikes will get onto him later ..

     The stig..

[bruiser]

Thanks,
Stig, that is interesting to know. There is defiantly a market for them.
Please tell me more when you find out more info.

Regards,

Bruiser.

[bruiser]

Hi Wasp,

I think the gears for IT465/490 gears may look similar to those on a XS650, although they don't share the same part numbers.

Thanks

Bruiser

[Nobby25]

Did the XS 650 gears match?, I'm also chasing a 490 3rd gear.
Cheers

[bruiser]

Hi Nobby25, I did not follow up on the XS650 Gears.
I searched on eBay for many days.
But by chance I ended up contacting a guy on eBay, who was advertising the sale of other IT490 parts on eBay. I sent the guy a message and asked if he had any gearbox parts... The end result was that he had a whole complete set of gears in excellent condition, including selector drum, selector forks and shafts.
I did a deal and bought a complete set of very low mileage gearbox internals from him!

It pays to keep searching and contact sellers that are selling other IT parts.

Bruiser

[mat hamersley]

are IT425 bits the same

[GMC]

are IT425 bits the same

The IT 425 seems to be more aligned with the 79 YZ & IT 400's