Author Topic: CB400 Four to XR400 Four (Read 51093 times)

MoMo · « **Reply #125 on:** April 13, 2012, 03:24:53 AM »

After all that work you put your bike in the scrapheap?

What is the final weight? Looks light and also looks like it would handle well...Larry

Pezz · « **Reply #126 on:** January 16, 2013, 03:29:52 AM »

Have some Vids a friend took of the XR460/4.

Dont know how to embed them here

http://www.youtube.com/embed/PqXKXAWXPqo

http://www.youtube.com/embed/pAiXnObciJ0

FunJimmy · « **Reply #127 on:** January 16, 2013, 06:16:59 AM »

Great fun and adventures.
Keep it .

ivanhoew · « **Reply #128 on:** January 16, 2013, 06:33:32 AM »

bloody brilliant .

Pezz · « **Reply #129 on:** January 20, 2013, 06:21:19 PM »

Just found another pic of the XR460/4

Pezz · « **Reply #130 on:** January 21, 2013, 03:35:07 AM »

Quote from: MoMo on April 13, 2012, 03:24:53 AM

After all that work you put your bike in the scrapheap? What is the final weight? Looks light and also looks like it would handle well...Larry

Sorry Missed this Larry, yes, the long wheelbase keeps it very stable

I haven't weighed it as yet, but it pretty light

Pezz · « **Reply #131 on:** February 11, 2013, 02:28:12 PM »

Time for some more work on Yajjuu

I need to do something serious about the front brakes on this bike.

Current front end is XR/XL 250 Disc brake set up. 38mm forks.

Question is, what will fit on here Disc wise and calliper wise?

I can fabricate an adapter bracket for a calliper if needed.

Pezz · « **Reply #132 on:** April 02, 2013, 01:22:39 AM »

Some GoPro footage from the 2013 Scrapheap Adventure Ride

http://www.youtube.com/embed/3z3DRuNqQ_Q

Retro Rocket · « **Reply #133 on:** April 02, 2013, 02:52:12 AM »

Quote from: Pezz on April 02, 2013, 01:22:39 AM

Some GoPro footage from the 2013 Scrapheap Adventure Ride

http://www.youtube.com/embed/3z3DRuNqQ_Q

Awesome, whats it like to ride..? Fuel economy..?

andy750 · « **Reply #134 on:** April 02, 2013, 05:41:10 AM »

Great video and bike looks very stable at speed on the dirt roads.

cheers
Andy

Pezz · « **Reply #135 on:** May 23, 2013, 04:01:23 PM »

Thanks

Bike is great to ride, very stable as it has a long wheelbase, great in the rought stuff, not a single track bike. Being air-cooled makes it quite light, as does the compact nature of the engine and 6 speed box. Weight is around 180KG wet or 400lbs. It has plenty of ground clearance. The rear shocks need a rebuild.

I have it running pretty rich as I was unsure how the 400/4 (460cc) would cope with the heat, they deifinately need an oil cooler as a road bike. It is also geared reasonably low and is singing as it is running along. I enjoy riding it! Might even fit up some XR650 forks I have here in the shed.

Pezz · « **Reply #136 on:** May 23, 2013, 04:10:23 PM »

Thought I would post some additional pics for you

Pezz · « **Reply #137 on:** May 23, 2013, 05:42:00 PM »

Photo of me sitting on the bike at the Scrapheap Adventure ride

Retro Rocket · « **Reply #138 on:** May 23, 2013, 11:28:54 PM »

Great pics...love it...

kyre · « **Reply #139 on:** May 24, 2013, 05:22:07 PM »

Man that looks fun! Great job

Pezz · « **Reply #140 on:** May 28, 2013, 11:43:12 PM »

Well after being asked how much this bike weighed, I went out and bought a set of $8.00 bathroom scales from K-Mart.

Front axle is 82kg and rear is 94kg making total mass of 176kg (388lbs)

I reckon I could lose a few kilograms with lighter rear guard, tail light and rack.

Pezz · « **Reply #141 on:** August 02, 2014, 03:24:41 PM »

Well I am dragging the XR460/4 out of storage for this years Scrapheap Ride
Time to order some parts for the carbies. I need new Float needles and some smaller main jets. I will post some more pics as I go over the next few weeks

MoMo · « **Reply #142 on:** August 02, 2014, 04:47:07 PM »

You only ride the bike once a year?...Larry

Pezz · « **Reply #143 on:** August 03, 2014, 04:52:41 PM »

Hi Larry

Yes, I built it for the fundraiser I run. Which is run annually

I was building up another bike for this year but ran into time and cash restrants so I will be back on the XR460/4. I must say Im happy about it too

Here is the other bike I was building - RG250 Dual Sport
DR600 front end installed. But the swing arm has had a few issues getting it to work effectively.
I will get back to it one day.

Pezz · « **Reply #144 on:** August 31, 2014, 09:29:09 PM »

The RG250 didnt make it in time so back to old faithful

The mighty the XR460/4 has made it back to the Skunkworks after a 12 month hibernation in the Inverell Motor Museum

Time to get busy, pull the carbies apart and get it ready for the next crack in 3 weeks time

MoMo · « **Reply #145 on:** August 31, 2014, 10:23:19 PM »

Sounds as thought you left gas in the carbs? Has ethanol fuel been forced upon you all in the land down under? Might have you work cut out with year old corn in the carb....Larry

Pezz · « **Reply #146 on:** September 11, 2014, 10:51:33 PM »

No it was playing up from the get go Larry. I dont buy ethanol fuel

Well I have been a bit busy over the last few days getting ready for this years Scrapheap Adventure Ride. I have to ride with Charley's FZwhy250 !!!!

FZR250 with TM250 suspension Front and Rear

Wednesday night I pulled the carbs after the new needles and seats arrived from 4into1.com

While I was in there I pulled the main jets out that is was running the 85 mains, up from the stock 75, but it was too rich

I went to the jet kit I bought and it was missing the 80’s. it had a second set of 75’s then 85, 90, & 95’s. I put the 75’s back in but wasn’t overly happy about that.

I was chatting with a mate Malcolm, who is an old toolmaker and he said he had a full set of number drills and we could drill out the second set to make a set of 80's So I grabbed the jets and headed over. The drills needed were much smaller than he thought.

After 30 minutes of measuring we worked out that 80 jets would be 0.8mm. Off to the engineering shop and bought 2 for $10, when back and Malcolm’s the two bits were different sizes. But we had the 0.8 that we needed.

So out with the pin vice and drilled out the second set of 75’s to create the 80's

All installed and ready to go back into the bike

Syscrush · « **Reply #147 on:** October 24, 2014, 04:42:25 PM »

I love that bike so much. Glad to see that it gets another shot at glory!!!

thirsty 1 · « **Reply #148 on:** October 24, 2014, 04:54:42 PM »

Man that's a cool bike ! Best of luck on the ride but I don't think you'll need it!

Lostboy Steve · « **Reply #149 on:** October 25, 2014, 08:31:39 AM »

How does it handle? I think this is very cool. I had an 07 yz250f and sold it for a 2013 wr250r and just the weight/power difference between those were a lot to get used to. (The yz being much lighter and more powerful.) How do you think it would compete against a 500 thumper? Have you estimated what the total weight of the bike is as it sits?

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Author Topic: CB400 Four to XR400 Four (Read 51093 times)