Derbi MHR 80 Engine Build (D50B0)
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- เผยแพร่เมื่อ 22 ก.ย. 2020
- in this video we wil rebuild a Derbi DRD engine with a malossi MHR 80 cilinder kit. we did this for a customer and there will be no further videos of this.
hope you like our work, and the video.
If you have any questions about this restoration, machines or other stuff we use, feel free to just ask in the comments. We read all of them and we will reply as soon as possible.
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Mooie duidelijk video 👍
Tätä oli kiva kattoa ;)
Very nice video! This video gonna help me so much😂
Muy bien. Un vídeo muy bueno se ve todo a la perfección. Mucha gente te va estar agradecida. Cuidate y gracias
Profi🤙
Nopeeta toimintaa
Good job man!
Thanks!
Where's your clutch lock washer? Crazy that should always have that or replace it asap if you don't that coming off would give you as much as a smile as your piston going through your tank
good kwalitie video mate
very nice👍
thanks!
Beun de beunhaas. koop goed gereedschap man jezus.
ty
Saubre arbeit 👍
Привет))) Какое масло ты в него заливаешь? Сколько л/с он выдаёт?))
Top build. Maar ik zou je wel aanraden om beter een dop van je doppensleutel set te gebruiken om de lagers er in te slagen. De oude lagers zelf werken ook vrij goed maar er is meer kans dat je de binnenkant van je nieuwe lager raakt en dat kan problemen geven
Dat kan eventueel ook inderdaad, de druk word over de hele lager verdeelt waardoor er geen schade word aangebracht
4:20 there the crank became crooked!
Well, how do you then adjust it to the perfect position without hammering it slightly harded?
@@eimantasme You use a crank puller
@@memoriescreated I'm guessing you can use this method for your own sake, how about the bearings?
it probely didn't, but you are right the proper tool is a crank puller. luckely i invested in those tools some time ago but this video is a littlebit older. those 2 light taps won't effect the crank critical and im sure there it will be fine for this mildly tuned setup
@@restorationandbuilds5899 a rubber mallet is not going to bend the crankshaft, a good old metal headed hammer will, i have hammered my crank, transmission, bearing everything pretty hard with a rubber mallet and everything is completely straight.
good job but next time hit only the outside of the bearing and heat the cases more! also dont hit the crank like that just heat up the bearing. also you forgot the locking washer on the clutch hub, just for next time you biuld an engine reminders
the fact that this was for a customer suprised me seeing how he indeed mounted the bearings, they will be broken in no time
Skąd masz dane ile Nm ma jaki gwint w d50b0? Np z jaką siłą dokręcić śruby karterów, pokrywy sprzęgła, głowicy itd
Wat voor carburateur was dat en welke sproeiers zater en is en wat was de stand van de gasnaald?
Schönes Video
Jedoch eher Midrace.
80 MHR Replica.
Hi buddy did you have to do any case work
what was that blue stuff you put on the screw?
have the same cylinder kit :)
did you have to run a higher spec transmission for the power or did you use the stock setup? Thanks
stock setup should handle it as long as you drive properly, but its not a bad thing to upgrade the transmission anyways
Mit wie viel NM werden die Motorschrauben fest geschraubt ?
I'm struggling to find torque specs for this engine how did you find them ?
Theyre not that important. Go by feel. Been building engines for ages.
naaah, you can find them in the service manual
You don't need them just go by feel everyone does that
how much do you buckle the engine?
I have my derbi senda 50 2017. Water pump leaked and lost all the coolant. It of course heat seized once and locked up. I got some water and fired her up, that was enough to get me to my destination.
Problem is i have exhaust fumes coming out of my coolant tank.. so im thinking the head gaskets blown.
Ive never done any major work on bike engines but i know how they work. Im an engineer.
Now, i suppose i should take the engine out, take the head off and have a good look around, see if anythings warped from the heat. So on. Change the gasket. Replace the water pump and chuck it back together with common sense and knowledge. Would that be far enough to get her running proper.
Also can the maintenance manuals be found online if i get stuck?
Is this something i should be able to do relatively easily
Any specialist tools required.
Bike is all standard
Does the carburetor have to be leveled properly or can it be tilted? Does it make a difference? (Dell`orto 21 Red)
It doesnt make a difference but when it starts leaking out the float bowl you need to level it a little bit more
so i have an mtx 50cc im rebuilding it but what engine can i put in it
I love pitbulls you can put in: Honda mtx 50/80 (but not the old type) Honda nsr/mbx 50/80 (but then you shifting is upside down)
thats not how you mount bearings, heat the casing up enouch next time, they schould slide in or go in with light-medium pressure. and if you need to tab them in only hit the outer ring
Hoeveel kost het om een derbi nt blok van 50cc airsal naar 70cc te krijgen met alles erop en eraan
Hoi Joost, zou je ons willen dm’en (Restoration and Builds) dan stuur ik je een prijsopgave en verdere dingen.
Whats the torque spec for the primary gear nut?
40nm
was it that you dont need to port your engine blocks with malossi’s cylinders?
not with the mhr just with the mhr team you need to port your engine blocks
@@vedadhelac1202 thanks for the clarification
Is dit een team of de gewonen
How much Newton meters for the block?? And what oil do you use for the clutch disks?
The clutch oil is the same as the gear oil, the tank is shared. So just use the oil you re going to put in. Regarding Nm for the engine block bolts I have no idea but be very careful as I remember the thread on the block wears easily…
Haha id hate to have a engine rebuild via you should use the bearing extractor
how much it cost? (the parts)
Expect it to be atleast 1k bucks
your supposed to hit the outer ring of the bearings not the whole bearing no wonder if they break soon:DD
MehuKatti not true, we now invested in a special bearing installation tool and this hits the whole bearing to.
Does 50cc crankshaft and 80cc crankshafts are the same or the 80cc have something more????
some crankshafts are 45mm stroke instead of the normal 40mm
my original crankshaft have 1000 km , can suport this cilinder ?? why this cilinder cost a lot of money ?? thanks from spain
i recommend stronger one, but works with original too. malossi is quality brand so thats why its expensive.
The origina crank is the best one for these so i wouldnt change it
Get a stronger one
What are the two hose stoppers connected to the piston for?
Collent lines used go there to the carb i think
what is that carb??
I am looking to buy a bigger carburator and i just do not know which one Do i pick?
I have a Derbi senda xtreme 80cc airsal
Can you help me please?
Because there are so many options.
Do you know who fits the best for my bike?
we put on a 28mm, the minimum is 24mm
Ont tape jamais sur un vilebrequin!!!!
Se on kumivasara, joten sillä ei ole väliä.
@@restorationandbuilds5899 sillä on :D. Mitään osaa ei tarvitse kyseisessä moottorissa lyödä. Taidat olla aika ammattitaidoton.
@@weleho8736 kumivasaralla on hieno. vain on tärkeää laittaa mutteri siihen. Olen tehnyt lohkoversioita vuosien ajan ja tehnyt kymmeniä lohkoja, eikä minulla ole koskaan ollut mitään ongelmia sen kanssa
Le pire c qu'il utilise une clef dynamo et avant sa il fait le port sur son vilo
Mit wieviel NM hast du die schrauben bei 5:12 angezogen?
9nm for Aprilia but should be ok for all 50cc derbi engine
Where did you get your outter clutch basket from???
its the original
Okay thanks anyway and decent build you did here mate keep them coming & all the best to you in the future
Why you dont put the berings ok the freezer
They were in the freezer
Jaka dysza głowna w tym gaźniku
How to tighten the engine tightly?
Loctite
je rêve où il rentre son vilo avec le marteau 😨
et les roulements il tape dessus aussi
mdrr son bloc il va tenir 2 min il va begayer
Transfer ports matching? Measuring and adjusting squish clearance? This engine maybe looks good, but it will never run at 100% of potential this cylinder kit has.
The AM6 must be the best 2-stroke 50cc engine ever to be put into a motorcycle, I have one to put into my 1979 FS1E, after it gets a rebuild that is. That base gasket looked a bit out on size compared to the ports, or was it the camera angle. What about the oil pump, they are no use with a big bore are they? pre mix oil.
This engine isn't Am6 it is Rabasa, they're two different engine types.
@@Masairasink No it's not, it's a D50b0 or Derbi euro 3. Rabasa, or Derbi euro2, is either with or without counter rotating shaft, but it takes a lot of space right under the intake side. In the casings of this video you can clearly see that there's only space for a small cylindrical shaft. Rabasa's have a casings that looks much alike AM6 seen from the inside
rabasa is an other name for derbi@@att49356
Heb jij een drd pro?
DieEneJesse we hebben dit blok gebouwd voor een klant, die heeft een drd pro. Zelf hebben wij verscheidende brommers stuk of 8 waaronder zelf ook een drd pro
@@restorationandbuilds5899 Sow heb je je eigen bedrijf?
@@dieenejesse8473nog niet maar we zijn er mee bezig om dingen te gaan verkopen ensv
Ziekk
Why isnt my clutch rod going all the way in
can someone help me?
waar kun je n momentsleutel halen?
gwn even op internet kijken websites zat
Je kunt ze op hbm machines halen, er is nu flinke korting. Het is prima gereedschap maar niet van proffesionele kwaliteit maar daar is de prijs ook naar, op internet zijn er genoeg te vinden.
Where can i buy a engine like this? Please tell me, cuz i wanna build a fast london
Goosracing
Is 76.5 cc
What paint did you use? Can you send a link and how many layers
Hello, this engine is powdercoated in black, so no paint. Powdercoat is much stronger and can handle heat, fuel etc.
Music end please
5:11
for how many nm?
help me pls
@@cyziekteam1974 12
@@gijsmunster4472 100%?
Bro using 2 stroke oil in the gearbox.
How much does it cost to build one of these ?
600 vbucks
how much is fuel consumption at this 80ccm cylinder ?
Every bike is different, but it should be around 1:10-1:15 (litre:kilometer), also depends on how much throttle you give
@@restorationandbuilds5899 no way it consumes 100L/100km XDDDD
@@lettuce953 No, not that much ;)
@@lettuce953 bruh
@@lettuce953 bruh
Le phbg avec un 80 malossi ca fait petit. Surtout que les plus gros phbg font 21
where are you come from
The Netherlands
oh ok i have the same bike with a airsal 70 ccm 🤗
@@obapfuscha7777 Nice :)
Balanssissa olevan kampuran lyöminen vasaralla😬
Eise ole välttämättä tehtaalta tulleenakaan ollu suora.... KAIKKI kampurat kannattas kellottaa ja mahdollisesti suoristaa,jopa uudet
@@user-tf7hf8jp7p oli miten oli, hölmöä paukuttaa kampura tuolla tavalla paikoilleen.
@@robertedwardlee8227 ne menee toki lämmöllä ja pakastimells ilman minkäänlaista paukuttamista
@@user-tf7hf8jp7p juuri näin. Ei paukkaamal saa kuin paikat hajalle.
Frendi prässäs petarin paikallee&lohko halki
in first two minutes you use open flame and a hammer, all against motorcycle repair principles
Its to make the metal in the engine case expand, so the bearing fits
kasikybäne malossi
it runs but doesnt drive :D
Never ever hit the end of a crank ffs 🤦🏻♂️ and I didn’t see you time the balance shaft up with the dots
sorry to say but this is jsut hard to watch with the terrible sound quality the working sounds goes only to one ear and the music to both
stop the mechanics
you never tap to enter an object
even less on the crankshaft and there is a squish to respect
Normalement ya un venturie avec la boîte à clapet et sinon c'est de la belle meca mais ya aucune vérification tipe squitch ou truc comme sa
mouais, le mec qui enfonce ces roulements au marteau je trouve ca moyen
@@Pitoysify ba oui carrément surtout sur de la belle pièce comme sa c'est de la boucherie sa
Za dużo młotka i uszkodzone bieżnie 🤦🏻♂️
poorly assembled, crankshaft mustnt be hammered on
Według mnie głupotą jest walenie młotkiem we wszystko co się da przy składaniu silnika, a tym bardziej w wał, który może się zcentrować. Po odpowiednim rozgrzaniu wszystko wchodzi w siebie jak w masełko. Nie potrzeba żadnego młotka!!! To tylko moje zdanie. Osobiście nie polecam tego filmu jako wzoru przy składaniu waszych silników oraz tego Pana jako wzoru do naśladowania.