Yamaha SR500 & SR400 Forum

GL Performance Network
It is currently Sun Feb 18, 2018 3:41 am

All times are UTC - 5 hours




Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 35 posts ]  Go to page Previous  1, 2, 3, 4  Next
Author Message
PostPosted: Sun Nov 29, 2015 6:51 pm 
Offline
Esteemed SR Elder

Joined: Thu Dec 18, 2008 3:24 pm
Posts: 1101
Location: Penwortham, Clare Valley, South Australia
I have made quite a bit of progress on the YB100 over the last week, and it is now al back together, I just need to source a few more bits like a new clutch lever / switch block assembly and decide what I am going to do with the seat.

Best mate came down yesterday to see if an engine he has just bought will fit into a SR frame;

Image

710cc Jawa. 55kw (74hp)!

He has taken the frame home and has promised to keep me updated with progress and send me some pictures.

_________________
14 out of the 66 bikes in the shed are 500 Yamahas! No, I don't have a problem!


Top
 Profile  
 
PostPosted: Fri Dec 04, 2015 6:10 am 
Offline
Global Mod
Global Mod
User avatar

Joined: Thu Dec 18, 2008 1:02 am
Posts: 6010
Location: Canberra ACT
:shock:

_________________
...'Any unnecessary items on the bike, that it doesn't really need, shouldn't be there!'. (Café racers creed). SR...


Top
 Profile  
 
PostPosted: Fri Dec 04, 2015 11:02 am 
Offline
Esteemed SR Elder

Joined: Thu Oct 03, 2013 2:01 pm
Posts: 3134
Location: South Central Wisconsin, USA
:shock: :shock:
I dont believe Ive ever seen an upper end that is that TALL

_________________
1981 SR500 old school 'Caff Racer'
2009 Suzuki TU250X
In all things maintain thy uprightness lest the ground rise up and smite thee.


Top
 Profile  
 
PostPosted: Fri Dec 04, 2015 3:02 pm 
Offline
Esteemed SR Elder
User avatar

Joined: Tue Oct 20, 2009 1:36 pm
Posts: 2760
Location: Whitehaven, Cumberland
Yep, how "long stroke" is that?

_________________
'78 2J4, work in progress & '79 XS650


Top
 Profile  
 
PostPosted: Fri Dec 04, 2015 6:57 pm 
Offline
Full Member

Joined: Sat Sep 13, 2014 10:19 pm
Posts: 93
Location: Duluth,Mn
:shock: :shock:


Top
 Profile  
 
PostPosted: Tue Dec 08, 2015 4:04 pm 
Offline
Esteemed SR Elder

Joined: Thu Dec 18, 2008 3:24 pm
Posts: 1101
Location: Penwortham, Clare Valley, South Australia
Some specs that a friend found and posted on Facebook along with a picture of the engine cases split.

water-cooled single cylinder with four valve DOHC, balancer shaft, clutch in oil bath, dry sump.
Capacity: 707cc
Bore x stroke: 100 x 90 mm
transmission: 3 or 4-speed
Compression ratio: 11.2: 1
Max. performance: 55 kW (74 Bhp) / 8000 min-1
fuel:98 ON gasoline
Oil:10W 40 synthetic
Weight:37 kg

Image

_________________
14 out of the 66 bikes in the shed are 500 Yamahas! No, I don't have a problem!


Top
 Profile  
 
PostPosted: Tue Dec 08, 2015 5:08 pm 
Offline
Full Member

Joined: Fri Jul 25, 2014 5:46 pm
Posts: 204
Location: Murphy cove,nova scotia
colinjay, you certainly have way more than your share of cool stuff passing through your garage.
That Jawa SW engine reminds me of the pre 2001 Husaberg motors.
Some day would you pull that green Husky out of the line and give us a look
Thx for sharing
Bruce


Top
 Profile  
 
PostPosted: Tue Dec 08, 2015 6:14 pm 
Offline
Senior Member

Joined: Tue Apr 17, 2012 2:08 pm
Posts: 379
Location: Wisconsin
How cool is THAT! Please keep us posted on this project. Very interesting . PutterSR


Top
 Profile  
 
PostPosted: Wed Dec 09, 2015 4:33 am 
Offline
Esteemed SR Elder

Joined: Thu Dec 18, 2008 3:24 pm
Posts: 1101
Location: Penwortham, Clare Valley, South Australia
bmonk wrote:
colinjay, you certainly have way more than your share of cool stuff passing through your garage.
That Jawa SW engine reminds me of the pre 2001 Husaberg motors.
Some day would you pull that green Husky out of the line and give us a look
Thx for sharing
Bruce


One of the good things about being a bit on the old side of life is that I have had the good fortune of meet a lot of people who share an interest in motorcycles, racing, hot rods and all things mechanical. Over the years I have generally stayed in touch with these people and now with all the new ways to stay in contact with people I am "meeting" other who share these interests. A lot of these guys are motorcycle nuts who have spent a life time building bikes and racing and have just gotten more eccentric in their old age.

The green Husky is my 1978 390 AMX (Automatic Motorcross). I bought this bike new in May 1978 when I was having a serious go riding enduros. I rode it in 3 x Australian 4 Day enduros ('79, '80, ''81) and numerous 1 and 2 day enduros and a few MX events over the four odd years I raced it. I eventually put a SR500 engine in the frame as the auto tranny was a bit fragile, and rode it for a few more years just a club level enduros and MX events. The bike was rebuilt in MX trim in 2010 for the Australian Historic MX Championships, but I blew the tranny in practice, and ended up racing my XT500 instead. When I rebuilt the tranny I put it back to enduro trim for vintage enduro events.

This is what it had been reduced to prior to its 2010 resurrection. Despite being in bit in boxes and been moved around 3 Australian states several time the only part that was lost was one single circlip for the transmission, which was a std size and replaced with one from the local bearing supplier.
Image

All read to race again. I have run Fox Air Shox on it since 1978, however those fitted now are not the original. I lent the originals to a mate back in the early 80's and won ended up being sold on with his bike,
Image

In enduro trim at the start of 2014 Harrow 2 Day Vintage Enduro.
Image

The bike is not "restored" and won't be while I own it, as it still carries a lot of the "component markings" from the last Australian 4 Day Enduro (1981). You can see one on the rear brake plate and also on the front wheel hub the bright green paint swatches with 111 (my riding number for the event) scratched into the paint.

It is surprising that back in the early 1980's it was basically worthless. like most MX and enduro bike which went out of date really quickly, now it is quite a collectible and desirable bike in Vintage MX and Enduros.

Col

_________________
14 out of the 66 bikes in the shed are 500 Yamahas! No, I don't have a problem!


Top
 Profile  
 
PostPosted: Wed Dec 09, 2015 12:37 pm 
Offline
Full Member

Joined: Fri Jul 25, 2014 5:46 pm
Posts: 204
Location: Murphy cove,nova scotia
That Husky looks great,easy to tell its been cared for..
Nice history of it as well, you look the part in the matching jersey.
Thx again


Top
 Profile  
 
Display posts from previous:  Sort by  
Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 35 posts ]  Go to page Previous  1, 2, 3, 4  Next

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group
SR 500 forum

Promote Your Page Too VigLink badge