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ståle
Joined: 25 Feb 2007 Posts: 2 Location: Oslo, Norway
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Posted: Mon Feb 26, 2007 11:06 pm Post subject: AR50/80/93 |
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Hi all. I'm a newbie to this forum. Found out about it through the KTC board a couple of days ago. I recently got an AR50 engine from the UK that I'm going to use in my KV75 project. It's standard 50cc now but I'll get a nos 80cc barrel and a useable 93cc kit in about 3 weeks. Bought a new carb and intake on ebay the other night for the 93cc kit. My first question is:
What are the HP figures for the different barrels ?
Cheers _________________ http://autos.groups.yahoo.com/group/kv75
http://autos.groups.yahoo.com/group/vintagekawasakisingles/ |
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StrokerBoy Show Star !
Joined: 15 Nov 2006 Posts: 1293 Location: Oop North, UK
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Posted: Wed Feb 28, 2007 9:56 am Post subject: |
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Hi. Welcome to the forum.
There doesn't seem to be much info about AR's anywhere, which is a shame. I had an AR80 when I was 17 but I can't pretend I know much about them. I'm sure Kawasaki quoted 7.2bhp for the 80 but I don't know how they measured up for real.
There's the odd mention of AR's on the KR Forum and there's an AR Owners Club in Japan.
So it looks like you're the expert ! Keep us up to date with your project and post some pictures. The KV75 is Kawasaki's Gag Bike. |
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Alastair
Joined: 13 Jan 2007 Posts: 62
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Posted: Wed Feb 28, 2007 12:36 pm Post subject: |
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StrokerBoy wrote: |
I'm sure Kawasaki quoted 7.2bhp for the 80 but I don't know how they measured up for real.
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Must be more surely. Honda quoted that for the MTX50R and 11hp for the 80 I'm restoring. Ok the Kwak was aircooled not water but they weren't slow from memory. I'd have thought 9.5 - 10 hp from them. _________________ Alastair
CBR1000RR6 (0 - Court in 2.5 seconds)
NS400RF
MTX80RFD |
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StrokerBoy Show Star !
Joined: 15 Nov 2006 Posts: 1293 Location: Oop North, UK
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Posted: Wed Feb 28, 2007 2:43 pm Post subject: |
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Alastair wrote: |
StrokerBoy wrote: |
I'm sure Kawasaki quoted 7.2bhp for the 80 but I don't know how they measured up for real.
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Must be more surely. Honda quoted that for the MTX50R and 11hp for the 80 I'm restoring. Ok the Kwak was aircooled not water but they weren't slow from memory. I'd have thought 9.5 - 10 hp from them. |
You're right - I found a scanned brochure quoting 10.2hp or 7.5KW.
More AR info HERE.
I saw 72mph on the clock of mine once, followed shortly afterwards by a crank rebuild... |
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ståle
Joined: 25 Feb 2007 Posts: 2 Location: Oslo, Norway
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Posted: Wed Feb 28, 2007 8:57 pm Post subject: |
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Thanks. According to the Kawasaki Recognition Manual, the AR50 were delivered with 7.2 HP in Africa. It doesn't say anything about any other countries, but I know the AR50 HP figure were 2.5 for Norway. Now I'm not aiming for 50cc anyway. It will be 80 or 93. Can't go down in cc's from 75 to 50. For christ's sake !
10.2 sounds right. That would be over 100% more HP than in a stock KV which has 4.2. If the 80cc has 10.2, the 93cc kit should have a few more.
I'm looking forward to this project.
Cheers _________________ http://autos.groups.yahoo.com/group/kv75
http://autos.groups.yahoo.com/group/vintagekawasakisingles/ |
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kwacker50senior
Joined: 17 Dec 2010 Posts: 17 Location: PRESTON LANCS
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Posted: Fri Dec 17, 2010 3:34 pm Post subject: |
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is your AR project completed yet ? Cheers JEFF in England |
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Holmetech
Joined: 16 Sep 2010 Posts: 5
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Posted: Tue Mar 15, 2011 10:33 pm Post subject: |
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Hi, Uk AR50's are 2.9hp, 10hp for the 80's.
The 93cc kit doesnt make much difference unless you port it. Make sure you use an 80 head or a machined head to match the 93cc(53mm) barrel,or you'll end up siezing it up,that is guaranteed.
Have fun.
Phil. |
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ARAISPEED
Joined: 05 Jan 2007 Posts: 8
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Posted: Wed Mar 16, 2011 9:21 am Post subject: |
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You MUST run an AR80 oil pump too - it flows more oil than the 50. It's easier to fit the whole 80 bottom end, that way you get the six speed box too. As said above, also run an 80 head, gearing and carb (jetted to suit). Allspeed/Nikon pipes work best. Have fun |
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Gillinghampaul
Joined: 15 Aug 2012 Posts: 655 Location: Kent
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Posted: Thu Aug 16, 2012 7:07 pm Post subject: |
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I know this old but im doing an ar too! Iv got a complete 50 engine that was in the bike but the guy gave me a complete 80 engine too!
All seemed good with the 80 engine but its all been completely stripped and is undergoing frame up rebuild and im not sure weather to go down the tuned 93 cc route or the kx 80 engine route?
If i go down the kx 80 route though ill make a gag bike type flattrack thing with 12 inch wheels but not sure if i can pull it off
But i really want a gag bike and its looking like this may be the only way!
Any other ar hints or tips would be great like what other forks and shocks fit?
Would love a twin disc set up on front for pure pose points! _________________ Gagging for it |
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Top-shaggy Show Star !
Joined: 05 Mar 2011 Posts: 1757 Location: Derbyshire
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Posted: Thu Aug 16, 2012 11:06 pm Post subject: |
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Gillinghampaul wrote: |
I know this old but im doing an ar too! Iv got a complete 50 engine that was in the bike but the guy gave me a complete 80 engine too!
All seemed good with the 80 engine but its all been completely stripped and is undergoing frame up rebuild and im not sure weather to go down the tuned 93 cc route or the kx 80 engine route?
If i go down the kx 80 route though ill make a gag bike type flattrack thing with 12 inch wheels but not sure if i can pull it off
But i really want a gag bike and its looking like this may be the only way!
Any other ar hints or tips would be great like what other forks and shocks fit?
Would love a twin disc set up on front for pure pose points! |
Good luck with the AR
I want a gag too and look forward to hearing how you get on
Pictures go down well _________________ We are where we are... |
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Gillinghampaul
Joined: 15 Aug 2012 Posts: 655 Location: Kent
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Posted: Fri Aug 17, 2012 7:44 am Post subject: |
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Thanks, and its in lots of lumps at the moment! So pics wont be great!,
Iv got a tzr 125 too that has been previously hand painted very badly so again not good in photos! But its got the short stroke engine in it with no power valve, its a laugh riding the little strokers though!
My big bike is a triumph daytona 955 and it sounds lovely but not a two stroke!
Ill try and keep the ar updated though _________________ Gagging for it |
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