Aprilia RS 125 Top End Rebuild Part 3 - Bleed Fluids & 1st Heat Cycle
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- Опубліковано 21 лип 2024
- Welcome to Tom Did It.
Here in Part 3 i will be cleaning the air filter, bleeding the 2 stroke oil pump, filling and bleeding the coolant radiator, filling the gear box oil and completing the 1st heat cycle after the top end rebuild.
So in summary;
Part 1 - I remove and dismantle the engine. Clean the engine and cut new gaskets.
Part 2 - I assemble the engine, check new squish then install the engine back in the bike.
Part 3 - I focused on bike assembly, new fluids and oils and first start up after rebuild.
My aim is to make videos that provide some light entertainment for those who have interest in motorcycles whilst being educational to the average DI mechanic.
Enjoy
Tom Did It. - Авто та транспорт
hi, just want to say that this series has helped me so much with my rs125, dk what i would have done without it :)
Ben, hi
Glad it was of some help with your project👍
I will be making more video relating to the Aprilia, but have a few things going on at the moment.
Cheers
Tom
Well done Tom great job!!
Cheers mate
Good idea that pump 50 yrs old and had 2 stroke for 36 years and you taught me alot
Good to hear. We never stop learning.
Thanks again for your continued support.
Hello i myself has a Aprilia RSV4 but it was captivating seeing you refurbishing your two strock engine.
Really advertising vidéo, good job Man .
Hello Moufid. Thank you for your comment.
The RSV4 is a great bike! I hope to own one one day.
Glad you liked the video🙏🏻👍
Cheers
Tom
Another great video Tom, just done the same on my bike. 👍
Good to hear Rick.
Did you like it? Not sure if I gave it an accurate assessment.
Your videos are great !
these 3 videos are really helpfull
Greetings Joe.
Thanks for your comment.
Glad they are of some use👍
good informative stuff. very clean bike by the way
Thank you Antony.
I was lucky to find this one with low Ks and garaged.
@@tomdidit4216 You were lucky.
My 2012 bike has low kms but was not garaged and the power valve was stuck, probably from using cheap oil. The VHST carby has a weird mixture of jets. It seems your 2010 model has the previous version 28mm carb that works well. It's a treat to see your bike. It looks brand new. It's nice to see you doing a proper job.
Great video
Many thanks!
Motul 710 2T all the way brother!!! Although I have suffered 2 Heat ceases over 5 years. The first with the factory config and the second with the Polini 32mm carb, factory reeds and K&N cone filter (care of PJME). Recently purchased the V-Force 3 Reed System from the same supplier. Have the top end apart now and trying to find the overheat problem. No obvious indicators so far after all standard observations complete. Any further ideas please Tom?
Hey, i've got my rs 06 and its not starting well maybe after 10 times i try it... And i have to control it with gas But i see you do it too the gas controling so the engine won't die so i guess it's normal for this bike but i still wonder if i can do something with the starting
I thought the manaul says part synthetic, fully doesnt protect well at low temps so actually increases wear. Where mineral is better at low temps. The clutch will actually perform better to.
Thanks for your comment Matthew.
My manual doesn’t actually state fully or semi synthetic oil. Only the weight “75w-90 top brand gear box oil” is mentioned.
Cheers
Tom
Got alink for the parts think i am going flat top top set up
Ok great. Speak with F1 moto. They were really helpful when I bought my Wossner.
Brilliant build been following from day you got the bike were you buy all your parts paul uk 🇬🇧
I remember, you may have been the first comment and first subscriber on the channel.
Thank you so much for your support!
As I live in Sydney, Australia 🇦🇺, I get parts from all over the internet. Unfortunately parts for this bike are hard to find over here :(
I know PJME seem to be the ‘go to place’ for Aprilia and 2 stroke bikes, however due to Covid-19, parts take 2-3 months to reach me from UK 🇬🇧. I buy parts from eBay, PJME, F1 Moto and anywhere else I can find them👍
@@tomdidit4216 alright bro good jjob same oil i use motul jets we use 120 to 122 main jet if it the 28mm phbh best run rich in winter you know your bikes don't you
Hi mate. Sorry for the slow response. Work is picking back up here is Australia, so been a bit occupied. Anyhow, just finished a new video. It is uploading as I write this.
Regarding your message above - I agree. My carb is also PHBH and I use a 120. The 120 works bang-on for my conditions and I can dial it in quite well just by adjusting the needle. Based on the detail of your comments, it seems you also know your bikes. In a previous message you mentioned you have been working on 2 strokes for some years now :)
Thanks again for your message of advice and support on the channel!
Hi Tom.
Im from norway and have 2004 rs.
When I do the same as you on the oil pump. Afther driving its air in the smalle hose? I change my oil pump, and carb, same thing. Is that normal? Never seen that before?
Best regards Tommy from Norway.
Hey Tom, I saw this video and I asked myself if you swapped a 2 stroke engine from an older Version in this preatty new Aprilia RS125 or it was originally a 2 stroke one? Because in Germany they sell this model just as a 4 Stroke Engine. Greets from Germany, Rob!
Greetings Rob.
I get asked this allot, and honestly I’m not sure?
It would be a great upgrade if the 2 stroke engine did fit!
Cheers
Tom
Hi! You still have a 17mm float height? I have a problem because the bike is not reacting the air screw when I am screw out, any help guys?
I have a Rs125, is the bike at the best temps when it's 3scale out of 6 on water temperature?
I think so Viktor. I always let my bike warm up before riding👍
I was always under the impression it was best to use castor based two stroke as the cylinders are nikasil could be wrong tho 🤷🏼♂️
Hello Owen. Thank you for your comment.
I’m unsure to be honest. Retailers and bike specialists have not suggested 710 would be a problem, however I certainly do some of my own research on this.
Regards
Tom
Thank you for your input on this thread Paul.
I never thought about asking PJME to be honest.
Hey where are you based pretty much had my bike rebuild got new vhm head and I got that smelly bad burn smell and the oil leak again 😅
Hi Dan. Thanks for your comment.
Have you take the piston squish to 0.8 with the VHM head?
I’m based in Sydney, Australia.
@@tomdidit4216 oh wow 👌 nice place and well my squish is 1m with medium 0.5 thick gasket the guy that done top end used some sort of power drill thing to torque up the cylinder head bolts no sealant at all there's no leaks but I think I may put some good sealant on a fresh o ring at the spark plug and check out my thermostat maybe not working and why its just starting to over Heat went to 4 bars never done that in 12 years 😀
Which paddock stand you use?
Hello HJ
Thanks for your message👍
I use a La Corsa Rear Paddock Stand.
It’s about $100. See the link.
Also, my bike has M8 aluminium bolts that screw into the swing arm. This hooks on to the rear stand.
Regards
Tom
hi mate just bought a 2007 rs125 it has 20k km on the clock does it need a rebuild?
Hi there.
Congratulations on your purchase. They are fun bikes!
Regarding your question - it really depends on how the bike was treated and maintained prior to buying it. Does the bike start and run ok? Assuming there is no pinging or knocking noises? My manual does state that the piston should be checked every 8,000km and replaced every 16,000 (take this as a guide).
The first thing I do an any of my bikes is a compression test as this will indicate if a new piston and rings are needed. I have made a compression test video that shows the process if you’re unsure how to do it. If the compression is low, around 80-90 then you need a new piston and rings. This is also a good time to check the big end bearing and con rod etc etc.
Hope this helps.
@@tomdidit4216 bike was treated shit gonna top end rebuild just in case I have watch ur vids tons of times gonna give it ago myself👍
Ok - I’m glad my video is of some help!
Hay!!Can you help me!
My rs 125 in Neitral go on 12-13rmp(max)
But in driving mode 8-9rmp max😪
Hello there.
It sounds like you may have a restricted model bike? What year is it?
Tom
@@tomdidit4216 2008
The internet at 1:10 doesn’t know what it’s talking about again - paper/foam are the same if you throw them away and replace them.
Paper is better as when you wash it, it lets you know you’re being a tool and makes you buy a new one.
Which you should with the foam ones too.
Obviously still the internet providing an opinion, but it’s here regardless 😂
Great video, watching this series shows me all the things I did wrong after my last rebuild.
It was is 2000’s before UA-cam though so I’m going to excuse myself.
Really fancy another, had a 99 model.
You absolutely MUST use 800ML of gear oil in these bikes. Otherwise, the ceramic gears will not get enough lubrication and eventually, will break. I learned this the hard way.
Hi there Juho.
Sorry to learn you crunched your gearbox.
My manual states 600ML of oil. Does your bike have a Rotax 123 or 122 engine? They may have different oil capacities that I’m not aware of.
Cheers
Tom
@@tomdidit4216 I have the same engine, Rotax 122 but the 123 has the same oil capacity. And indeed, manual does tell you to put 600Ml of gear oil. I live in a place where people race these bikes a lot, so they know a thing or two about these engines. Ive been told that ceramic gears need more lubrication than metal ones, so under heavy use and 600ml of oil, the ceramic ones will eventually wear out and shatter like mine did. Thankfully when shit happens, the broken ceramic pieces wont harm the engine more. Thats the fatal flaw of this engine, but very easy to prevent. Ride safe!
Juno, hi.
Thank you for your concern and sharing the productive advice. I hope other people see your comment.
I be sure to do some research into this!
Thanks again mate
@@tomdidit4216 Atleast i couldn't find a single text about the topic that was not written in finnish, but here almost every rs/sx/hm owner seems to know. Good luck searching though.
@@juho6898 the ceramic....... 🤣 NYLON primary gears are a service item......
Where you put 2 hoses from gas tank??
Hello Nikee
I sees the breather hoses down from the tank, down towards the rear shock. This is far enough away from the chain and moving parts👍
@@tomdidit4216 thank you for reply!!
I have one more question.
I have aprilia rs 125 full power 2012,when I ride bike can't go higher than 10rpm,
I think it's blockade but I don't know where...
Sorry on my bad english
Hi
It could be a number of things. I would start by cleaning the carb and air filter.
What jetting are you using?
@@tomdidit4216 everything is factory
Castrol A747 for premix. Can't beat it.
Hi King Pin
Castrol A747 is a great oil and a favourite amongst many riders👍
you moto how hp 33 or 15? :) me aprilia 33
Hi RIDER2TWO.
Thank you for your comment. My bike is a full power model, which I believe is around 33hp, like yours.
Heaps of fun!
@@tomdidit4216 i think yours is 28hp its grand all the same i have an 08 fp feom factory and a 97 rs 125 gs its imported it gets 33 bearly a difference tbh cant tell on the bike exellent work btw
multiply driving videos with rs 125, bro
Will do. Im just waiting on a few parts to fix it up and I’ll be back out on the road.
Thanks for your comment.
Tom
Motul 710 is not good for a rotax 122, the better oil for rotax 122 is bardahal kts
Hi Federico.
Thank you for your comment. I’ve never heard of the bardahal kts oil. I’ll be sure to do some research online.
Thanks again👍
Tom
Thats! Not aaa gas-oil feull Mix No That's Name: getrennt- Schmierung meby First the ⚡🔥 & after the 💨.