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New project, should I be scared?

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02 Jul 2021 12:21 #851117 by dancragin
New project, should I be scared? was created by dancragin
Now that my Z900 A4 is finished I decided to take on a new project.

I just picked up a 1976 Suzuki RE5 Rotary, looks good but needs a full go through. It does have a new engine which
was replaced 250 miles ago. I guess they mix oil with the fuel like a two stroke and the oil line check valve stuck, lost
compression.

Any of you folks have any experience with these? I had one years ago and it handled well and was very smooth.
 

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  • howardhb
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  • God, I trust
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02 Jul 2021 13:05 - 02 Jul 2021 13:10 #851118 by howardhb
Replied by howardhb on topic New project, should I be scared?
Unique and very rare. Looks to be in fabulous condition too.
A sweet find, to be sure!

And lucky for you, all the manuals are here, for free! : 
re5rotary.proboards.com/thread/379/re5-p...rvice-manuals-online

Howard

'81 GPz 550 D1
'81 GPz 1100 B1 ELR "Tribute" www.kzrider.com/our-forum/11-projects/61...-elr-tribute?start=0
'82 Yamaha YB100 Fizzie
'79 Suzuki GT200 X5 TWO STROKE TWIN - SMOKER!
Last edit: 02 Jul 2021 13:10 by howardhb.

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  • ThatGPzGuy
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  • More Sparky than Speed Racer
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02 Jul 2021 13:08 - 03 Jul 2021 08:20 #851119 by ThatGPzGuy
Replied by ThatGPzGuy on topic New project, should I be scared?
Very cool. Be warned you'll be asked to start it up when friends visit the garage so they can get their 2-stroke aroma fix!

Edit: Oops. I don't know why I was talking two-stroke. Must have been thinking water buffalo... 

Jim
North GA
2016 Yamaha FJR1300ES
1982 GPz750 R1
1974 Kawasaki H1
1976 Kawasaki KZ400
1979 Yamaha XS650 cafe'
2001 KZ1000P
2001 Yamaha YZ426
1981 Honda XR200 stroked in an '89 CR125 chassis
1965 Mustang
1967 Triumph GT6
1976 Bronco
"If you didn't build it, it's not really yours"
Last edit: 03 Jul 2021 08:20 by ThatGPzGuy. Reason: brain fart

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02 Jul 2021 15:59 #851133 by 750 R1
Replied by 750 R1 on topic New project, should I be scared?
While i'm not familiar with the RE5, { I know about them, just never owned or ridden one} ,  it runs a Wankel rotary which runs on 4 stroke fuel, they don't run oil in the fuel...
There are forums specifically for these Rotary Suzuki's.

re5rotary.proboards.com/

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  • slayer61
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  • KZR FLAG RELAY CARRIER #62
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06 Jul 2021 13:12 - 06 Jul 2021 13:13 #851395 by slayer61
Replied by slayer61 on topic New project, should I be scared?
I've a friend who is a collector of classic & vintage bikes (~85 to his best guess) and a a Suzuki RE5 is among them. I can ask him if you have specific questions. Very cool.

Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD
Last edit: 06 Jul 2021 13:13 by slayer61.

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06 Jul 2021 13:43 #851400 by dancragin
Replied by dancragin on topic New project, should I be scared?
All Rotary engines inject a small amount of oil with the fuel to lubricate the Apex seals. On the RE5 it has a oil tank just for that. It uses standard engine oil though.

Thanks for the referal to the Rotary Pro-boards, there is a wealth of information there.

So far the biggest struggle was rebuilding the the carburetor, which is a fairly complicated part. 7 circuits and port timing adjustments.

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06 Jul 2021 14:18 - 06 Jul 2021 14:19 #851403 by 650ed
Replied by 650ed on topic New project, should I be scared?
See en.wikipedia.org/wiki/Suzuki_RE5 .  Notice they mention that some oil is supplied to the combustion chamber.  Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 06 Jul 2021 14:19 by 650ed.

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06 Jul 2021 15:49 #851414 by 750 R1
Replied by 750 R1 on topic New project, should I be scared?
I've owned a couple of RX2 Mazda's Ed, A friend of mine had a bridge ported RX3 that ate Porsche's and Ferrari's for breakfast.  My comment was in reference to the "two stroke" comment, they are clearly NOT two stroke.   Thanks for the google effort.

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06 Jul 2021 16:04 #851415 by Nessism
Replied by Nessism on topic New project, should I be scared?
My all time favorite rebuild project was going through a 12A Mazda rotory, porting the side plates, and installing a Racing Beat header and intake manifold with small Holley 4B carb.  The drivability was excellent and the engine just pulled and pulled.  I was able to literally carry the engine by myself in my arms.  My dream is to build another and slam it into a frogeye sprite.  That would be fun.

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06 Jul 2021 16:42 #851418 by TexasKZ
Replied by TexasKZ on topic New project, should I be scared?
I suppose it could be considered a one stroke since it is a continuous cycle.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24

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06 Jul 2021 19:31 #851431 by Skidmark
Replied by Skidmark on topic New project, should I be scared?
Don't get me going on Mazdas!!  Me in the #38 Pro-7 car at California Speedway.  I raced this RX-7 for 8 years with the SCCA.

 

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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