German Motorcycles

JLO Engines (ILO)

JLO logo

German Motorcycle Manufacturers
Made in Germany
German Forums


Brief History of the JLO Engine

JLO (also spelled ILO) is a German engine manufacturer now owned by North American Rockwell Co.

These engines have been used by many marques including Anker, Bastert, Batavus, Bauer, BM, Bismarck, Bucker, Diamant, DMF, Express, Gazelle, Glas Goggo, Goricke, Hercules, Hoffmann, Lion-Rapide, Lohner, Maico, Mars, Meister, Minimo, Monark, Panther (DE), Rabeneick, Rixe, Santamaria, Sparta, Tempo, Tornax, U T & Universal.

Swedish Maraton mopeds were fitted with JLO.
Many snowmobiles including Arctic Cat & Polaris used ILO engines, as did go-karts including the 1960 Trokart. Outboard manufacturers employing JLO included Warrenjet, and another marine application was the Waverunner.

German manufacturers which have used the JLO 175 engine: Bauer, Hecker, Hercules, Hoffmann, U T, Rabeneick, Rixe and Tornax.


Mon Oct 20 2014
sam.masson at orange.fr
piston moteur JLO
tondeuse bunton JLO type 252 L
Je recherche un piston pour ma tondeuse bunton moteur rockwell (JLO). Voici les références du piston : type 252L, cylindré 267 cm3, diamètre du piston 69 mm.
Merci de vos réponses
Poitiers


Mon May 26 2014
colinstuttard at yahoo.co.uk
JLO outboard engine
JLO L35L              074
Can you give me any information on this engine. I am looking for spare parts.
North England



Mon Sep 23 2013
naturesway<at>hotmail.co.uk
JLO L2521
jlo rockwell JLO L2521
looking for parts for my old JLO L2521
stornoway uk


Sun Sep 01 2013
post<at>no-way.no
ILO engine
ILO LSU100LA
I did find a brand new ILO LSU100LA engine in my basement. its with the orginal box and tools. The engien says 1955 on it so pretty old. I wold like to sell it. do you know of any forums that i can use to sell it and how much do you think i can get? newer used brand new from 1955
Norway

(Love that domain name! Ed.)


Sat Aug 24 2013
dmdance<at>shaw.ca

JLO L-252
Looking for any and all information about the l-252 engine
Ontario


Wed Aug 14 2013
Crystalmarmbruster<at>yahoo.com
engine rebuild kit
285 ccm jlo rockwell 2f2995-1
I am looking for a 258 ccm JLO Rockwell engine rebuild kit 2f2995-1...291-01-00
Indian River, MI


Thu Jul 18 2013
dfair<at>gdinet.com
JLO (ILO) L152 Engine
JLO L152
I am looking for a JLO L152 Engine manual. Can you assist me in locating even a copy?
Milwaukee

JLO-L152-Partslist.jpg posted 1308


Mon Feb 25 2013
emutrees<at>bigpond.com
TRANSISTER 105420
JLO RM 252
Wanted to buy TRANSISTOR for JLO RM252 motor I am in Australia can anyone help Thnks
Australia


Sat Jan 26 2013
steve<at>lagrise.fr
Piston needed
JLO L101L
I am searching for a usable piston for HAKO-WERKE 1965 engine. The diametre is 50mm and the height is 61mm and the axis is 12mm
France


Thu Jan 10 2013
JLO-Rockwell L99L engine
JLO L99L
looking for replacement parts. especially ignition components i.e. coil
new york, usa
Posted in the German Forums


Fri Oct 12 2012
mao-dal<at>online.no
Motor
ILO L101L Typzeichen 121
Anybody having a working motor?
Norway


Wed Sep 26 2012
geoffkelly<at>btinternet.com
JLO sub seaengine
JLO AS36
Does anybody have a float bowl to fit the Bing Carburettor on my Sub sea engine?
Watrrington (uk)


Mon Aug 13 2012
dwb1<at>mchsi.com
jlo FM 100K
jlo FM 100K
I need a complete & good running jlo FM 100 K kickstart or a good top end, jug with head. I can pay with Pay Pal & need fst shipping.
Minnesoat

JLO-FM100K-1.jpg will be posted 1209


Sun Jun 10 2012
ann.millar<at>talktalk.net
JLO L97 - Spark Plug Information
JLO L97
Hi, I'm looking for the correct modern day spark plug for a JLO L97 engine fitted to a Flymo GT2. Thanks for any help that you can give.  Cheers. Ann
Dundee, Scotland


Wed Feb 15 2012
tunertech121<at>yahoo.com
parts
lr eng lr440
you can get new parts from cuynua engines usa still make them
us


Sun Jan 22 2012
flielerm<at>nexusisp.com
JLO Engine
JLO  L-252 10.4 hp
Hi
 I was wondering if you have any information about the L-252 JLO engine. It is for a 1965 Hus-ski 444 snowmobile. Thanks Jay.
Ont. Ca.


Fri Mar 02 2012
BOGDAN.GHITESCU<at>YAHOO.COM
JLO DL66O MOTOR ENGINE
AGRIA JLO DL66O
I want to buy piston and rings JLO DL66O engine motor. Please contact me!
VALCEA (ROMANIA)
English


Thu Dec 15 2011
slstanek<at>ymailimg
2 stroke motor
JLO L252L HUBR 247 Motor #252105911
I am looking for a service and parts manual for this motor. Where can I find one.
MI, USA


Mon Dec 05 2011
ch.guille<at>gmail.com
JLO L197
JLO  brillant L197
Hola tengo una motoazada brilliant con motor JLO L197 197 13263
Pero no tiene carburador y quisiera saber cual es ?

un saludo
alcaudete
Spanish


Tue Sep 06 2011
Pthayer<at>blazersimg
J -lo rm 252 gasket
J -lo Rm 252 engine 2520118235
Blew head gasket for mower. Do you know where I can get one. It's a metel type gasket and local gasket maker says a regular cut gasket will not work. Can you help?
St. Louis mo

There is information on gaskets in the components section


Tue Aug 16 2011
paulmercer13<at>hotmail.com
1975 Rockwell snowmobile points
Scorpion Whip 340
I've got a 1975 Scorpion Whip 340 with the original rockwell engine in it. is there any other engine or snowmobile that used the same points as this machine?
Ontario


Sat Jul 23 2011
bh4645<at>msn.com
Carburator parts
JLO L252L or 252-01
I am looking for a carburator kit, float and float pin. JLO engine is mounted to a Toro commercial walk behind lawn mower.
Muskegon, MI


Tue May 10 2011
r.gibson08<at>btinternetimg
piston rings
jlo type100, code 001,
piston required
london


Thu May 05 2011
landryco<at>dishmail.net
JLO engine info
JLO R295
I was wondering if anyone has any info on the JLO R295 single cylinder engine. A parts book I found shows the cylinder # to be 295-07-807-00 but it has a 297-xx-xyz-xx (can't remember). Were there differences in these cylinders, maybe porting?
Thanks
Keith
Pittsburg NH USA


Mon Apr 18 2011
denis.matakovic<at>gmailimg
Engine parts
Holder H7
Is it possible to get ventilator and magnet for Rockwell engine used in Holder H7
Croatia


Mon Mar 28 2011
miblacknc<at>gmailimg
Gas shut off valve
JLO Rockwell L77L
Are there any Gas shut off valves out there available for this engine?
Charlotte, NC


Tue Feb 01 2011
lauripille<at>hot.ee
JLO Engine
JLO MG125 (??)
Hello,
can You help me to identify this Engine: number 397303, 1938 (year?), cylinder diam. 52mm, stroke 58mm (?), nose piston, 3-speed gearbox, probably from pre-war Victoria KR12 (?) bike (Frame nr: 222207).
Maybe You can find some information about this bike too?
Thanks in advance!
Lauri
Estonia


Sun Dec 19 2010
tmlvanno<at>xs4all.nl
JLO LE 125 K
jlo LE 125 K
Can somebody help my to find a dealer in Hollend for  piston & rings of a  LE 125 K
Thanks Theo van Noort
zwijndrecht

JLO-Mahle-Piston.jpg posted 1012


Tue Nov 30 2010
bhatevara<at>hotmailimg
JLO 35cc engine
JLO 35cc engine JLO 35cc
I am looking for a manual for the JLO 35cc engine, can any one please email me the specs sheet atleast
India


Tue Nov 02 2010
mothervince<AT>hotmail.fr
motor L 26 N°62685
JLO WERK L26
recherche 2 segments de piston pour moteur L26
TOURS


Mon Oct 25 2010
slupinski AT twcny.rr.com
297 jlo cylinder
1968 agway snowmobile sno squire
I am looking for a 5 stud single cylinder jug
usa


Mon Oct 18 2010
rustydmcclinton<at>cox.net
electronic ignition
JLO rockwell rockwell
Where can I find electronic igition conversion kits for JLO 295 and 440 engines?
Louisiana


Mon Oct 04 2010
stewiebranson<at>bigpond.com
Parts Requied
SUD JLO WERK MUNCHEN 13 MOTOR L75
Wanted piston & rings,small end bush & pin
Victoria Australia


Wed Sep 01 2010
p.vanderpost<at>gmailimg
L75
Süd JLO Werke L75
Searching for documentation about JLO L75 2-stroke engine
Enkhuizen Netherlands


Wed Aug 11 2010
fraba<at>quicknet.nl
JLO L35L
JLO Rockwell L35L
I got my L35L running, what's was your problem?
Canada


Thu May 06 2010
carsonsboxers<at>aolimg
Clutch
jlo no clue
I have a jlo single cyl  2 cycle engine . I am looking for a clutch for it . I have no clue on the model.It is a tapered shaft and it was used on a high pressure sprayer in the US military . <this is what I am being told> where do I go from here ??? pl ease help piont me in the right direction .. THANKS FOR  YOUR TIME
indiana


Fri Apr 23 2010
fraba<at>quicknet.nl
Information JLO engine L35L
JLO L35L
I'm looking for a manual or any technical information af a JLO L35L engine mounted to a Loewe (Libelle 80 bf) Waterpump
Netherlands


Sat Feb 13 2010
pabloimgmweb.co.za
JLO L35R
JLO L35R
Looking for a Cylinder with piston + rings and a gasket set
South Africa


Sun Jan 17 2010
elliedanimgmacimg
2f-340 Engine Differences
Scorpion Whip
Greetings!  I hope that you can help me--I am working on a vintage snowmobile for a friend and am trying to determine the differences between JLO/Rockwell engines in these models to determine which parts are interchangeable.

Can you tell me what the different suffices in engine models mean?  For instance, what is the difference between a JLO 2f-340-1 and a JLO 2f-340-6?  I can find head and cylinder gaskets for the former, but cannot find any docmentation nor any parts referring to -6 engines, or any others for that matter.

Would the top end gaskets from one be interchangeable with another?  Thanks very much!
Minnesota, USA


Thu Jan 07 2010
havasupete1imgyahooimg
jlo engine
JLO  not sure typ L150 LE
I'm looking for any information on this motor
AZ,havasu city


Thu Oct 15 2009
acarapacchiimgmicronimg
Jlo l60 motor infos
JLO L60
how can i get informations, service manual, of this kind of 2 stroke engine .
No pics are available
Italy


Tue Oct 06 2009
emailimgroyaledgerimg
ingition coil
jlo rm252
Dear sir,my name is Brian Cook from Royaledger and Mower here in Clearwater Florida.I have a customer who has an old jlo engine on a Buton mower,model RM252,247cm,ser#2520116532.Please let me know if there is a ingition coil still available.thank you,Brian Cook
FL,Clearwater


Tue Oct 06 2009
williamcharrisonimgyahooimg
jlo rockwell 295 oil/gas ratio
rockwell 295
Recommended gas/oil ratio.
akron, ohio

Twostroke oil ratio information


Mon Oct 05 2009
jurbanimgrancetimber.co.za
Parts/service manual for JLO engine
JLO Rockwell Type 177R  73cm No.077150504
I am looking for a owners manual (electronic copy is fine) and a carburette for this engine.
South Africa


Mon Jun 29 2009
Plutdimgyahooimg
fuel mixture
Rockwell JLO 760-2
A friend of mine just bought an aircat airboat with this engine on it. He is wondering what fuel mixture this used. It is obviously quite old, but it seems to be in good shape. Also, are parts abailable?
South Dakota, USA


Sun May 17 2009
crkincimgbellsouth.net
Manual
JLO Rockwell 440-3
Where can I purchase a manual for this engine?
Florida


Try this page for books & manuals

Tue Apr 21 2009
tesa38,at>live.fr
MOTEUR JLO
PISTON L252L
Je recherche un piston pour un moteur JLO de 247 CM3
BEAUREPAIRE FRANCE


Wed Apr 15 2009
flavinmarioimgyahoo.ie
SPARK PLUG
JLO L3721  372CC ENG
CAN YOU TELL ME WHAT IS THE CORRECT PLUG FOR THIS ENGINE
THANKS
MARIO
IRELAND


Try this page:
http://bikelinks.com/directory/Parts/Electrics/Sparkplugs/

Sun Mar 29 2009
firemangomerimgaolimg
need help with motor
rockwell 399 jlo
i got a tracker with a rockwell engine and cant start it i need a wiring diagrame or somthing
california


Mon Feb 16 2009
terrytullerimgaolimg
how much oil
jlo rockwell l-230 cc 2 stroke 1cyl
can't find how much oil to put in the bottom case
ohio usa


Mon Feb 02 2009
kerrison2imghotmailimg
TWO STROKE
JLO L2521
ANY INFO ON THIE ENGINE FITTED TO RANSOM LAWN MOWER  OTHER NUM ON THE PLATE ARE AS FOL 178
25201
13244
ENGLAND


Thu Jan 29 2009
howied88imghotmailimg
JLO ROCKWELL
L 372 L 372354418NR
LOOKING FOR OVERSIZED PISTON OR STANDARD RINGS AND HEAD GASKET I WOULD BE GREATLY APPRIENCITIVE IF YOU COULD HELP..
PLEASE E-MAIL BACK WIT PRICE AND AVAILABLITY PLEASE
MICHAEL HOWARD
IRELAND


Sun Jan 11 2009
amitaltimgnetvision.net.il
SUD-JLO WERK -SERVICE INFO
SUD0JLO WERK L60 SP 1962
looking for service manual ,spark plugs,gap of the platin.
model SP L60 year 1962


Try this page for books & manuals


Fri Dec 12 2008
hummel-bobimgyahooimg
vintage waverunner
Have a jlo motor in a early model waverunner,maybe a protocal,bad exhaust design.Do you have any info or leads i could use to find out more about this boat.Thank You!! Robert Hummel
Mi.


Sun Dec 07 2008
bobjones616imghotmailimg
JLO L99 CLUTCH
I am looking for a replacement cluch or clutch shoes for a JLO L99 engine. Also any information regarding the manufacturer of the clutch. Any help would be appreciated.
Michigan


Mon Dec 01 2008
zahuczkyimgfreemail.hu
JLO 240 MGT from 1939
JLO ILO 250 MGT
Hello! I am searching for an ILO 250 MGT single cylinder, 2 stroke engine, with Graetzin K22S or Amal M75/415 carb, if possible. Thanks!
Hungary


Sun Oct 05 2008
montutu61imggmailimg
moteur 175cc JLO
JLO MG 175cc 1952
bonjour,
pouirriez-vous me faire savoir si il est encore possible dse se fournir des pièces pour ce moteur.Si oui pourriez-vous me faire parvenie par mail un catalogue avec les prix.
merci de votre réponse.


Thu Oct 02 2008
thejoenolanimgaolimg
JLO - wanted
jlo / ILO L101
Hello, I would like to obtain some JLO/ILO L101 engines and spares for a historic kart restoration project. Many thanks
London


Mon Sep 08 2008
joutlaw6imgnetzero.net
two cycle engine
rockwell 760 332
need parts for typ lr760/2 744ccm engine fly wheel coils points and starter
TN.


Sat Jul 26 2008
buckaroos-daddyimgyahooimg
sparkplug
rockwell jlo
I have a rockwell JLO motor single cylinder, and I was wondering what sparkplug it takes.
harrison maine


Wed Apr 09 2008
jhoward825imgbtinternetimg
JLO Warrenjet
I have a JLO 89cc engine in a Warrenjet outboard. Are there any spares or information available in the UK please.
Bath, England


Thu Mar 27 2008
pasi.stenimgvolvoimg
Unknown engine
JLO ? ?
Found an engine in the garage. Don't know the brand and type. Could You give a hint. Pictures (4 pcs) You find in:
http://kuvablogi.com/blog/14227/

Thank You for Your help.

Regards mr. P. Sten / Finland
Finland / Tampere


Mon Mar 17 2008
nemanja86bgimghotmailimg
JLO Minimo 30
JLO Minimo 30
Sehr geehrte Damen und Heeren

Ich besitze Jlo Minimo 30, Baujahr: 1969
Motornr.:04825778
Typ: MM 540
A 392

Ale Teile sind original unde es is fahrbereit. Ich wolte fragen ob ich eventuel einen neueres model bekomen könnte weil er über 35 Jahre alt ist?
Gerne erwarte ich Ihre Geschetzte Antwort.
Mit den frunlichsten Grüssen Djordjevic Nebojsa
Serbia (Belgrade)

JLO-Minimo-1969-1.jpg
JLO-Minimo-1969-1


Tue Mar 11 2008
Marcello.Pegorettiimgelettropiemme.it
Ricerca ricambi
JLO 101R
Servono cilindro, pistone e una valvola applicata al cilindro che ferma il motore. Il montore aziona un argano per tirare cavi. Grazie per quanto potrete rispondere.
Trento (Italy)


Sat Feb 16 2008
littlebit-movingon-faithimgyahooimg

rockwell jlo l380l
would like to know the history of this engine & are there any available parts?
Valdosta,ga


Sun Feb 03 2008
d-janischimgmchsiimg
Sparkplug?
1969/70 L340JLO single cylinder L340JLO
Can some one tell me what spark plug to use for a 1969/70 L340JLO single cylinder engine. It had an old Champion K8 that fit the threads but would not go down far enough to seat on the top of the head. Same for a new champion D9. HELP!
Thank you.
Minnesota, USA


There may be some information on our page about Classic Motorcycle Electrics.

Sat Jan 19 2008
tomrofimgkmts.ca
JLO Engine
JLO L152R
I am looking for parts and info on this engine. I have the main block with recoil. Looking for muffler and manuel
Canada


Mon Jan 14 2008
vincent.farrugiaimgmaltairportimg
To Buy Parts
Rockwell JLO L197 10 Special Motor Hoe
Dear sir, My motor hoe stops after 20minutes and will not start again. I am suspecting that the coil or the capacitor have a problem. If you can contact me I will explain more by e-mail Thanks
Malta


Wed Jan 09 2008
tclarkimgtranseogvsimg
Rockwell JLO
Yard Man Yard Cub
I am in need of a few parts for this Yard Man Snowmobile. I need a carburator rebuild kit, A points set, and a set of piston rings. also I need a recoil starter and cover. If you may be able to help Please e-mail me for more info. Thank you.
OH, Arcanum, USA


Mon Jan 07 2008
warrenja1imgyahooimg
hovervraft engine
Rockwell jlo l295l
I have bought a hoverover hovercraft which has 3 rockwell engines. The main one is a JLO L295L which is the one I have questions about. The engine was in pieces when i got it. I have bought a new piston and conrod but the gudgeon pin is too small for the conrod. Is there meant to be a roller bearing on the small end of the conrod??
Also, what petrol mix are these engines supposed to run on?
Thanks, John
sligo, ireland


Tue Dec 25 2007
srmhomeimgihug.co.nz
Warrenjet 25
L77L
I have been gifted a warrenjet 25 outboard powered by a JLO motor. The plate on the motor has the following information

Typ L77L
Tpy-zechan 071
73ccm
P/sn 250827573
077133776

Could you tell me what oil mix this engine requires and what spark plug is required.

thanks
Auckland, New Zealand


Thu Dec 20 2007
jes2usaimgyahooimg
JLO
TYP L197L 097 198CM3 ser197 04 39103
Does anyone know if parts may be had? Just what the heck is it.
Ohio, USA


Sat Dec 01 2007
davelow723imgaolimg
JLO L252
Hus-ski 444
Im having trouble seperating the motor casing. All the bolts are out that hold the casing togather. Do I need a special tool to seperate the casing.


Tue Nov 27 2007
ateliermeclamontagneimghotmailimg
moteur
rockwell 338
nous avons un moteur 2 cylindre rockwell 338 ayant comme numero de serie 339-06-01533 zeichem 412 typ 2f340-06 et nous voudrions savoir dans quelle sorte de motoneige ce moteur la viens car on a seulement le moteur pour pouvoir commander des pieces si besoin mereci
qc canada


Robotrans: we have a two-cylinder motor Rockwell 338 having like job number 339-06-01533 zeichem 412 typ 2f340-06 and we would like to know in which kind of motoneige this engine come it because one has only the engine to be able to order parts if need be.


Tue Nov 27 2007
vittorio.mauri4imgtin.it
JLO ENGINE

SOMEONE KNOW THAT ENGINE? THANKS IN ADVANCE VITTORIO
LECCO ITALY
 

JLO twin Lecco 1.jpg
JLO twin Lecco


Mon Nov 26 2007
dewieimgiserv.net
Repair Manual
399 JLO (Rockwell)
I have a 1971 Artic Cat snowmobile with the 399 Rockwell JLO engine in it. Can You tell Me where I can get a Repair Manual for the motor? Thanks,  Doug
Michigan,USA


Try this page for books & manuals

Thu Nov 01 2007
esquelrodimgspeedy.com.ar
Motor JLO
typ DL 660
necesitaria informacion tecnica sobre este motor ubicado en un motocultivador AGria, necesito datos del piston por haber sufrido una averia importante y ver laposibilidad de fabricar uno
ARGENTINA
...........
Les adjunto imagenes del motocultivador Agria werkel con motor JLO

JLO DL660 Tractor Engine.jpg
JLO DL660 Tractor Engine


Sat Oct 27 2007
laut-biru05imgyahooimg
i wanna know what motorcycle i havw
the mechine writen
i have a machine mark os JLO but i don't know what motorcyles is? in the block mechine written Jlowerke g.m.b.h Penninberg. type 125 v. 411. i wanna know what the original motor is? and please send the picture beacaue i will built it. thank. beni
Indonesia


Sat Oct 20 2007
david.benyonimglineone.net
Bad running/won't run
JLO Outboard Motor 76cc (Amal carb).
This motor is giving a lot of trouble. I cleaned the carb and added new fuel. There is a good spark and the motor did run once for about 30 seconds then failed. Cleaned the carb again but still no go. I think I will have to dismantle it to check piston rings and crankcase seals. Can you advise what the compression pressure should be?  Best regards from Dave.
Bude, Cornwall


Wed Sep 26 2007
richnlizimgfsmail.net
jlo
50cc 2 stroke
hi do you know where i can find a repair manual for jlo in english
london


Try under Books and Manuals - Resources

Sun May 27 2007
ancimgyahooimg
JLO Rockwell G.m.b.h. Pinneberg / Hamburg
Typ L 300 L Hubr 297 Mot Nr 297 46172
Can you tell me engine size and horsehopower? I believe it was a challenger 300 snowmobile that it was on. Engine runs good hard starting believe it needs a carb kit. Where can I buy parts? Bought engine for Go kart. Thank you
Ohio


Sat Apr 28 2007
Marmarakountimgyahooimg
jlo snd 746606
I dont speak german . Please help me I have an old 200 cc battery operated ground digging machine and I am looking for ignite parts or the whole engine it is 2 cycle 4 speed no reverse could some one e mail me and let me know where I could find them I am in greece thank you
greece


Thu Feb 08 2007
Tim.mccimgdroitwich.demon.co.uk
JLO M 200
I have a 200cc JLO engine, given to me in the early 70's. No one in the UK has ever heard of JLO. Does anyone know what this engine came out of? as I would love to do somthing with it.
(unfortunately no picture at the moment)
Thanks
Tim
Droitwich
..........
Tue Mar 06 2007
JLO M200
I have written before to let you all know that I have a 200 cc JLO engine and have tried to find any information about it for many years unfortunately I do not speak German
Droitwich Spa


If you have a query about JLO engines, or wish to share some information about these classic German two-strokes, please contact us!

Pandora's Box. Do NOT go here or bad things will happen!