OzVMX Forum

Marque Remarks => Yamaha => Topic started by: bishboy on September 05, 2014, 01:11:15 pm

Title: Watercooled YZ490 engined YZ450f
Post by: bishboy on September 05, 2014, 01:11:15 pm: Although not "fully water cooled" an impressive bike all the same. I used to have the same colour scheme on my R1 racebike ;D

http://www.thumpertalk.com/topic/861778-the-450-killer-the-2011-yz490/ (http://www.thumpertalk.com/topic/861778-the-450-killer-the-2011-yz490/)
Title: Re: Watercooled YZ490 engined YZ450f
Post by: Simo63 on September 05, 2014, 02:50:44 pm: Wow, now that is how you do a conversion .. awesome workmanship and an equally awesome result 8) 8) 8) 8) 8) 8) 8) 8) 8) 8)
Title: Re: Watercooled YZ490 engined YZ450f
Post by: Ted on September 05, 2014, 05:49:40 pm: I wonder if you could successfully argue that because the motor may have derived from a model that originally had a drum brake that it would be legal for the EVO class ::) ::)
Title: Re: Watercooled YZ490 engined YZ450f
Post by: Nathan S on September 05, 2014, 06:15:46 pm: Wonder if it still pings?
Title: Re: Watercooled YZ490 engined YZ450f
Post by: 80-85 husky on September 05, 2014, 06:38:11 pm: love to hear it run..pinging was on my mind as well LOL
Title: Re: Watercooled YZ490 engined YZ450f
Post by: vandy010 on September 05, 2014, 07:20:25 pm: Quote from: Ted on September 05, 2014, 05:49:40 pm
I wonder if you could successfully argue that because the motor may have derived from a model that originally had a drum brake that it would be legal for the EVO class ::) ::)
linkage rear end Ted ::)
Title: Re: Watercooled YZ490 engined YZ450f
Post by: LWC82PE on September 05, 2014, 08:36:09 pm: Here is a Smythco water cooled head for a YZ490

(https://hjvw0q.bn1.livefilestore.com/y2pkbaNucic1tbhU_LGZyTYxnFNOc6CeMNVszyTsqWSzBYvEUnIwxXaYVr3SMriAgUiG0-JFol5CARH0KHWbYbKn_-Fh77NK3SaeK0KCp21oug/Copy%20of%20Copy%20of%20P1010014.JPG?psid=1)

(https://hjvw0q.bn1.livefilestore.com/y2pR1w5JCy15PgvD3jUmjI74auM_YZie8VgrgXUaRJ5M6Qmslrp7WcEv8K_lUg-kmG0z6u-xQyiT57F54edyfsU5l1Cgy6tIZ80PTMXebiNOsg/Copy%20of%20Copy%20of%20P1010011.JPG?psid=1)

Currently on Formula 500 YZ powered car

If you fitted IT or WR? or some electrics to get you 12volts you could use a small pump like this too

http://www.daviescraig.com.au/Electric_Water_Pumps-ELECTRIC_BOOSTER_PUMP_12V_KIT___PART_No__9001-details.aspx
Title: Re: Watercooled YZ490 engined YZ450f
Post by: Ted on September 05, 2014, 08:57:20 pm: Quote from: vandy010 on September 05, 2014, 07:20:25 pm
Quote from: Ted on September 05, 2014, 05:49:40 pm
I wonder if you could successfully argue that because the motor may have derived from a model that originally had a drum brake that it would be legal for the EVO class ::) ::)
linkage rear end Ted ::)

Yeah I know Mick. Just thought it was only as silly a suggestion as some others. ;)

Missed your smiling face at the Nats ;D
Title: Re: Watercooled YZ490 engined YZ450f
Post by: kim80y on September 07, 2014, 08:45:09 pm: I had a few of those Smithco's, sold em all to YZ490 fans in the USA.

Cheers
Kim
Title: Re: Watercooled YZ490 engined YZ450f
Post by: YZ250H on September 08, 2014, 12:08:19 pm: That looks awesome 8)
Title: Re: Watercooled YZ490 engined YZ450f
Post by: Ekka on September 09, 2014, 06:00:56 pm: Nice