Vittorazi Atom80 Complete 2 stroke Engine Overhaul (Teardown and rebuild)

Рет қаралды 4,038

Күн бұрын

Here’s what you’ll find in this video:
0:00 Intro
0:05 Engine Mounts & Pull Starter Removal
0:33 Gearbox Removal
0:54 Exhaust Removal
1:53 Airbox, Carburetor & Reed Cage Removal
3:52 Cover (front & rear) Removal
5:01 Coil Removal
5:25 Throttle/Airbox Bracket Removal
5:55 Clutch Removal
6:46 Flywheel Removal
7:58 Top End Teardown
9:25 Main Seal Removal
10:44 Splitting the Case & Crank Removal
15:35 Crank, Bearings & Case Assembly
21:31 Main Seal Installation
22:47 Top End Assembly
29:02 Clutch Installation
29:50 Flywheel Installation
30:28 Clutch & Flywheel Torquing
31:24 Throttle/Airbox Installation
32:19 Coil Installation
33:12 Flywheel Cover Installation
33:57 Pull Starter & Engine Mount Installation
34:16 Squish Gap Measurement
35:17 Front Cover Installation
37:07 Reed Cage, Carburetor & Air Box Installation
39:09 Exhaust Installation
41:04 Gearbox Installation
42:06 Pictures of the process
43:27 Pro Tip
All parts and most tools were purchased from:
The great people with the best service in the business@ www.skysportsUSA.net
This is the teardown and rebuild of an MY19 Atom80. I bought this engine new on a PAP Tinox about 30 months prior and this engine had 460 hours on it when I did this. There were no noises or leaks from this engine. The reason for the complete overhaul was simply for routine maintenance.
History on the engine includes all required maintenance at the required intervals. Only exception would be that I never replaced the main seals. After teardown, the main seals, bearing, crank , rod and rod bearings were found in great shape. The cylinder walls were starting to show some expected wear. This piston was removed with about 250 hours on it, the piston bearing had 150 hours and the piston ring & reeds had 75 hours.
During this teardown I replaced with new parts the crank, main seals, main bearings, piston, piston bearing, piston pin, piston clips, cylinder, clutch and of course a spark plug. Also the following gaskets: cylinder base, head, & all exhaust gaskets.

Пікірлер: 54

@martinburgui7241 Жыл бұрын

thank you very mucho for watching

@clearprop Жыл бұрын

Thank you for all the work that went into this video. It's a superb resource and I'm sure will help many people - myself included! Thanks again. 🙂

@wednesdaykartingflyingclub8164 Жыл бұрын

You’re welcome Dan. I like working on engines, so I think filming and editing this was tougher for me than the actual engine teardown and rebuild. I’m happy to see and hear that others are benefiting from it too. That makes the work worth it in the end. Thanks for the kind words.

@dkumpula001 Жыл бұрын

This was a great video, thank you so much for making it. I watched it at least three times while doing my 200 hour maintenance which according to the manual requires all of these steps. That said, my engine looked great and much of the work was possibly unnecessary. I especially appreciated your approach to freezing the crankshaft and heating the crankcase beyond what the Vittorazi manual suggested as that worked great. The solder trick for the clearance measurement was fantastic as well. Again many thanks for the "virtual hand-holding" while I did this work.

@wednesdaykartingflyingclub8164 Жыл бұрын

Thanks so much David for the nice comments. It took a lot of time to make this video so I’m glad to hear that you found it useful. Hope to see you in the air!!

@extremedoings Жыл бұрын

BEST BEST VIDEO EVER MADE RIGHT HEAR thankyou very much for all this knowledge

@wednesdaykartingflyingclub8164 Жыл бұрын

Thanks so much for the kind words. Glad that you found it useful!!

@mtnlife13 2 жыл бұрын

In training they said, 'if you're not a two stroke mechanic now, you will be if you stay in the sport'. Thank you for taking the time to make this video. Not having much experience working on engines, especially PPG, this is a phenomenal resource.

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thank you John. It’s always easier watching somebody else do something before venturing into the “unknown”. At least you’ll know what you’re getting yourself into. In fact, this video might show some people that it’d be better to seek out somebody that has the experience already rather that tackle it on their own. I came to this sport having a decent level of engine knowledge (by no means an expert) and have always preferred (when possible) to fix things myself that way I have a better understanding of what needs to be done next time. Anyway, thanks for kind words. This video did take a long time to make. I’m just glad that somebody else found it of some value too.

@flierbill Жыл бұрын

Best video on KZfaq ! Thanks !

@wednesdaykartingflyingclub8164 Жыл бұрын

I don’t know, I’ve seen better. 😂 But, Thanks for the kind words Bill. I enjoy working on engines. That part comes easy for me. The video part was a lot of work making this one. I’m just happy that other people found any of it useful.

@pabloaguilar2813 2 жыл бұрын

Thank you for this great video, it's extremely useful. Also, extra thumbs up for keeping it to the point and without annoying music.

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thanks for the kind words. I’m glad that you found it useful.

@martinberwanger4928 9 ай бұрын

This is the best video for ATOM 80 owners. It is my favourite ! Thank you so much for your excelent work and images. Now I want more! Would you please show us the electric system and replacement?

@wednesdaykartingflyingclub8164 9 ай бұрын

Thanks for the kind words Martin. This video does show removal and installation of the coil and flywheel. Other than that it’s really just the kill switch on the throttle. But the throttle would be different for every frame manufacture. But let me know exactly what you’re looking for and maybe I can make a video.

@paramotofly 2 жыл бұрын

Very useful, thanks for filming this

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thanks for the comment. Glad that you found it useful.

@ParamotorNC 2 жыл бұрын

Thank you for the video.

@wednesdaykartingflyingclub8164 2 жыл бұрын

You’re welcome. Hope you found it useful.

@newsky_laboratory 2 жыл бұрын

Thanks.

@wednesdaykartingflyingclub8164 2 жыл бұрын

Glad that you found it useful.

@fobio2101 2 жыл бұрын

Thanks for making this video

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thanks for the comment. Glad that you found it useful.

@nnnyk 2 жыл бұрын

great video

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thanks for the kind words.

@577buttfan 2 жыл бұрын

New sub man!!

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thanks. You’re part of a very small…….I mean exclusive 😂 club now.

@577buttfan 2 жыл бұрын

@@wednesdaykartingflyingclub8164 Haha..you have the ONLY atom. 80 tear down videos on KZfaq so it won't be small for long lol

@FlyBabyFlyPPG 2 жыл бұрын

Thanks for sharing fly baby fly.

@wednesdaykartingflyingclub8164 2 жыл бұрын

Glad you found it useful. Thanks for the comment.

@HR41Plan 2 жыл бұрын

Thank-you for sharing your knowledge! I learn loot !

@wednesdaykartingflyingclub8164 2 жыл бұрын

I’m glad that you found some value in it. Thanks for the kind words.

@helenoodilondossantosfilho2991 2 жыл бұрын

Parabéns pelos os vidios Gostaria de saber qual e a medida do pistõ quantas cc

@wednesdaykartingflyingclub8164 2 жыл бұрын

@@helenoodilondossantosfilho2991 Obrigado. O motor e de 80cc.

@helenoodilondossantosfilho2991 2 жыл бұрын

Vc tem a medida do pistõ

@wednesdaykartingflyingclub8164 2 жыл бұрын

@@helenoodilondossantosfilho2991 Meu aplicativo tradutor não está entendendo qual medida você está pedindo.

@dogaveinsan7363 2 жыл бұрын

👏🏻👏🏻👏🏻👍🇹🇷

@stevier3239 Жыл бұрын

I really appreciate the step by step video. I have yet to try and get a manual for this motor, but would be interested to hear which pullers you used in your rebuild.

@wednesdaykartingflyingclub8164 Жыл бұрын

Here’s a link to Vittorazi’s maintenance manual. I made this video about a year before the manual was published. So keep that in mind. I did buy all my parts along with a flywheel and multi (prop hub/ clutch) puller from www.skysportsusa.net. The other pullers/case splitters I made using flat stock aluminum and correctly sized bolts. vittorazi.com/manuali/Maintenance_manual_Atom80_Eng_022.pdf?fbclid=IwAR3Q-giff3-l5xb9oVDGjdLas3HvJzciFITj2-omuz2YC-93aW-U9LPxfHM

@gaetanperrier4305 13 күн бұрын

Hello, great video ! However, you fitted he main bearings the wrong way: the open side of the cage should be facing outwards the engine cases in order to receive oil from the oil gallery. No big deal though.

@wednesdaykartingflyingclub8164 13 күн бұрын

@@gaetanperrier4305 you’re right. Good catch. Those bearings are still running with over 500 hours on them mounted that way. 😁

@gaetanperrier4305 13 күн бұрын

@@wednesdaykartingflyingclub8164 amazing how long this engine can last !

@gaetanperrier4305 13 күн бұрын

@@wednesdaykartingflyingclub8164 amazing how long this engine can last !

@577buttfan 2 жыл бұрын

Why did you do the rebuild.How many hours did it have.Was the crank and bearings still good? i heard they can go for 500 hours.

@wednesdaykartingflyingclub8164 2 жыл бұрын

I did the rebuild (new piston, pin, bearing, crank, main bearings, seals, reeds, clutch) at about 460 hours. I believe that Vittorazi called for new crank seals at 200 hours and crank bearings at 400 hours. Neither of which I had ever done. I was getting a slight vibration at over 9000 rpm (which I thought was probably the clutch), but I didn’t want to risk losing the engine. So I decided to take a look inside. To my amazement, the crank and bearings looked pristine. I replaced everything anyway (I already had the parts on hand) and my vibration (probably clutch slippage) went away. This little engine is amazing and I believe it’ll last for many more hours with proper attention. 👍🏼🪂

@577buttfan 2 жыл бұрын

@@wednesdaykartingflyingclub8164 awesome dude!!! I run E10 in mine but good oil so hopefully it lasts long!! Thanks for the info!!!

@larrykorell750 2 жыл бұрын

Excellent how to video.....but why'd you take the whole engine apart? For fun? Can't be for maintenance....I have a polini with 425 hours on it and only changed out the piston and rings....how many hours on this thing?

@wednesdaykartingflyingclub8164 2 жыл бұрын

Thanks Larry. Vittorazi recommends replacing the main bearings at 400 hours. I was at about 460. So it was mainly maintenance and curiosity. I was starting to develop a slight vibration at higher rpm’s. But I believe that to be caused by the clutch. To be honest, I’m really impressed with how good everything looked.

@larrykorell750 2 жыл бұрын

@@wednesdaykartingflyingclub8164 wow, the motor looked brand new! Great vid.....I've never seen a motor that old in such great shape...thanks for posting!

@martinberwanger4928 9 ай бұрын

Where I live , we don´t have mechanics in paramotor engines; to whom do you think I should ask for advice? A motorbike mechanic maybe? A karting mechanic? At least to make the normal maintenance of the engines...

@wednesdaykartingflyingclub8164 9 ай бұрын

Yes. Both karting and motorbike mechanics would be good choices if they’re familiar with two stroke engines. Even some lawnmower/landscaping mechanics have the ability also.