Complete Four Stroke Engine Rebuild - Everything You Need to Know Prior to Tear-down! Part 1

[@michaelfmarcos]

I'm about to rebuild my first engine, a '99 YZ400F. I have no idea how well I'll do, and a friend who's much more experienced than I am told me how foolish of a task this was, but I'm feeling pretty confident with videos like these. I'll let you know how it goes!

[@michaelfmarcos]

Just found out it stops at reassembling the bottom end. Womp womp.

[@elirvca1794]

Are you still rebuild this ? I just got a 99 yz 400f the kick start it’s locked and I’ll be doing a tear down soon

[@andrewgrajeda3349]

He now has a other videos in the series covering other processes

[@elirvca1794]

Thanks!

[@Woodall925]

So it’s a year later how’d it go🤣

[@chrisk3754]

Yes, informative and very good descriptions of how to do the leak down. Cool attitude where it comes to how to do it, much appreciated.

[@alrichnolte1680]

As soon as I heard you say “detailed SERIES” I had to celebrate. This is exactly what I need!

[@Prophitman8]

knowledge is power. the more you know. excellent video, i look forward to the series

[@Bennymisc]

You rock. Thank you for taking the time to make this video. 🔥

[@dinggle-i3r]

im 16 and im rebuilding my first dirt bike i was really dumb and didn't think about checking my oil and was out on my first real ride was about 3 hours into it and my bike just stop running and stoped really hard its a 2007 rmz 250 and i havnt really found a good video series for my bike so im going to watch all of your videos and ill keep it updated if anyone is interested or need to know anything about a Suzuki 250 4 stroke i have the hole bike tear down to frame and am going to be putting more time and money into her then the bike probably worth but who cares keeps me out of trouble if im in my dads shop all night for a couple weeks 🤣

[@dinggle-i3r]

my dad did help me do a compression test and it was like at 25 30 psi and i did take the valve over off and did this measuring thing and its about .15 out of time on the exhaust and so much out of time on my intake that i didn't have a big enough shim thing so i think with how low my oil was my valves probably seized and my piston hit them the reason i think that is bc both were out of time so they probably got stuck in between the the exhaust and intake stroke (in that order) so im going to tear the engine all the way down and if its top end is messed up to bad like the cylinder walls are scared and the piston is gone im going to do a full race build with a big bore and race piston and maybe even a stage 2 hot cam im going to comment though out the hole series if anyone has any idea for the build or knows something i don't help a bro out please

[@wyattcitizenzap4539]

wow look at that kick starter. WORN! thanks for the knowledge brotha!

[@tonyhanson9235]

i always look for vids that are not done in a shitty garage. thx great vid

[@sypnie_nz8598]

The D zone , good helpful stuff/ video series was really helpful for newbie like myself as going fof a first time rebuild at home but Me broke AF 180+ hours. Good till next season😂😂

[@trailwayfilms]

Best video on rebuilding I've ever seen! Can't wait to watch the rest of the series. Subscribed 👍

[@kuceljah9269]

You are underrated.

[@cbadnc9040]

Glad to see you again! Great videos as usual!

[@brianvazquez7749]

Amazing teacher

[@jerrysz3155]

Thanks for the vid. So, you never mentioned how to deal with the auto decompression. Doesn’t it keep the exhaust slightly opened at TDC? How do I get the valves closed during the leak down test? Thnx!

[@pooyakastler9464]

Half time in and suscribed...thanks man🤝

[@silent.mediaa]

This is nice I need to work on mine

[@buckwild1123]

Great video bro !!!

[@brunocastro7507]

Really nice videos man. Keep it going 💪

[@antoniofabing]

Great video man, very informative. Thanks.

[@Mateo-qn9jk]

Do you think I would be able to fix my 4 stroke with this guide and minimal experience?

[@JonnyTheKidd.]

think you might have forgot to link the leak down test tool

[@treeslayer2275]

I like what you just said. In the intro. Subbing r now 😂

[@chrisashley2736]

your videos are sick, I am literally picking the bike im about to buy based on whether you have made a video of it or not so i know how to take it apart if i have to lmao

[@KcYukon]

Well done

[@Narblo]

Would you recommend rebuilding the engine just because? I want to see how the engine is and see if I can put it together again. I also have a hunch that it ran without a good oil for a while

[@liboy34]

Hi Thi is you 2nd Channel ?

[@vincentpatenaude9152]

Excellent video

[@WelshChapman]

Great video

[@findvoltage]

Great vid mate. Good to save and sub

[@gman-ds9ur]

Excellent!

[@SzabiAaa]

Hey are you sure if that dog is the top dead center mark?

[@iiReaperz01]

Sick!!!!!!!

[@chrislartman6114]

I was riding and just shot down and hour later the kick is hard

[@BossedUpBarter6]

Do the hours reset on bike after rebuild ?

[@sirBumpyCase]

the girls often refer to me as 'the d-zone'

[@dryzl3910]

I traded for a SSR150 with a blown piston do I need a rebuild 😭

[@alekseyzaharov7130]

Подскажите пожалуйста, что за датчик стоит в левом патрубке на радиатор идёт ???

[@owenusher]

Hey, my name is Owen and I own a 2009 Honda crf250r. I am having issues when my bike is hot starting. I’ve been told that it might be the valve shims but they are in spec. I re jetted the bike to make it run better but have no luck. When I start it it will either run good, or won’t want to idle and be hard to start. When I let it sit and cool down for a bit it starts well. My spark plug has plenty spark. Do you know what may be wrong with my bike?

[@Carter-e1]

Check ur timing make sure you go TDC then refer to your manual make sure ur aligned and double check urself

[@yusuf.manoga2292]

Pliz kindly teach me how i can do it

[@khrayons4290]

Can you use synthetic grease instead?

[@nyithanwinarakan4823]

Tankyou

[@Bikeplug301]

Do you sell and how to videos?

[@christianrees3073]

My motorcycle has 120 psi and 85% leak down and

[@SzabiAaa]

Cause that dog is not top dead center the straight mark is . I made that mistake once and aligned the marks to that . There is a mark after the letter h it looks like and I only Yamaha does this

[@pedrothomas4944]

i wish this was in english i need this info

[@Bgatz1029]

Still posting on your other channel ?

[@adampaganelli4891]

Will be starting again soon👍🏼

[@nahjohnniyedavis6043]

What does it mean when ur kickstar is seized

[@LeeGHThomas]

Top end probably head gasket failure or got water in your exhaust.

[@nahjohnniyedavis6043]

Thx

[@fernandofernandez5719]

Even 3 dislikes is wayyy to much

[@mixtips637]

I don't trust mechanics any more tore my eninge apart and the i end up putting it together Honestly tho help me rebuild my own stuff now

[@jordanobrien4378]

Is the oil drained out of the assembled bike that you do the leakdown test?

[@pakularcristi2451]

My engine has mud in it lol😂✌️

[@noahkarrow4093]

Why does it say a 4 stroke engine rebuild but your rebuilding a 2 stroke

[@kasperkuula7829]

It is a 4stroke😂

[@NormanRoland-t4p]

You gotta cell phone number I got questions about my atv