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It would probably start but I wouldn’t recommend running it without the battery installed to avoid potential damage to the charging system and voltage regulator

Looks like you have some diagnostics in your future. Hopefully it’s something simple.

Will it pull if you remove the spark plug?

yes.. I think there is a pressure release not working.it slowly got worse just not much information about that compression release

@kevincresswell5272 what year is it? The auto-decompression is built into the exhaust camshaft and is not serviceable on its own. If you pull the valve cover and look in the center of the exhaust cam, make sure that the weight assy moves freely and returns to closed when released.

Do you have the tensioner out completely? If so, be sure it’s not bound up around the crank gear. After that, you may have the wrong chain.

@@restoroosterohv yea i had the tensioner out and it’s was seated around the crank teeth but I came to the realization that I just bought a cheap cam chain even though it had the correct part number it’s just too small. Have you ever bought something with the part number but doesn’t fit? I mean it was only 13 bucks off eBay so I went ahead and got one from Rocky Mountain for 50 bucks we’ll see what happens

@@ReelLyferOS I don't buy Chinese camshaft chains. Too much at stake...Glad you found the issue.

@@restoroosterohv yea I just thought If it has the part number then it’s oem lol but that’s definitely not the case thanks rooster man you help more than you know and also I jb welded that cam chain guide seat and it’s hard as a rock

@ReelLyferOS sometimes the aftermarket companies will put the OEM part number so that you have a reference, but obviously that doesn’t work always.

Thank you

Thank you for watching

Still working on it

Not all engines use a gasket material but when they do, I will use them for sure

@@restoroosterohv right on thanks for the videos man really like your straightforward style and also how you usually get the whole builds done in one video. Awesome brother keep on wrenching and I’ll keep watchin.

I appreciate your continued support

There is only one drain on the bottom of the engine on the CRF125F and it is a 17mm. This will drain the entire engine/transmission.

I think it was something like $850 due to a black Friday special.

I know you’re right.

First thing I would do is check your stator windings.

Thank you

Sure, you can use a hose into a container. I wanted to illustrate the procedure with visuals of the output. Thanks for your comment.

Thank you

You’re welcome

Thanks for watching

As soon as I get another crank job, I will do a detailed video on truing them.

@restoroosterohv I appreciate it. I will subscribe! I really needed a truing stand to check out the runout on a crank 3 weeks ago. We sold a brand new Gasgas MC65 and it was vibrating bad. KTM asked me to check runout but I had to send it back to them. The end of the crankshaft ended up being milled with too much clearance between the bearing. I've heard other 65s around the US have been vibrating lately as well

I would certainly prefer bikes…

@@restoroosterohv how do we get ahold of you? No email or shop name!

@orientaloperator restoroosterohv@gmail.com

Sea-Doo is very specific with their oil requirements. A lot of people don’t follow them because they simply don’t know. Main reason for engine failures on jet skis. TCW3 is generally a no-no.

Thanks Ken, glad to be back.

I appreciate your continued support. I’m sure things will turn around.

Always appreciated!

Thank you

It’s more than just throwing a set of piston rings in, that’s what everybody says in their ad. If it was that easy, they would just do it. The piston and the cylinder would need to be measured and replaced if necessary. If you are replacing with Steel valves, the springs will need to be replaced as well along with new seals. Full inspection of the bottom end to be sure there is no wear should also be done.

@@restoroosterohv yea I’m changing the springs and seals as well wasn’t trying to take apart the bottom end but I appreciate it man

@Bigbrandywine365 do it once, do it right.

I’m not sure if you are referring to a spun cam gear or just being off a tooth. If it’s off just a little bit it’s going to be more of a performance issue generally won’t cause any damage to the piston or the valves. If you find that you cannot line the timing marks up, look for a stretched timing chain, and that will be crucial to replace.

@@restoroosterohv my apologies I was referring to the spun gear on the cam…

@TopOfThaMotorMs I certainly would not ignore that because it could slip further in which case you would have piston to valve contact and potentially destroy your cylinder head

@@restoroosterohv & that’s wat I thought i just needed a 2nd opinion sumbodies I actually trust… Thanx & appreciate it my guy! 💯🫡

@TopOfThaMotorMs you’re welcome. Good luck with your build.

Yes, the seal is going out

@restoroosterohv one of those shaft seals with the indent on one side and the flat part facing in?

Oh I think I understand. It's probably just the small o ring on the inner plate, if it's only leaking coolant.

@@SlabbinNCabbin Do a complete rebuild kit with all of the gaskets, bearings and seals to avoid having to pull it all back apart again.

More like lucky…haha. Thank you though.

Thank you sir. Been trying but no one will sell me a bike (even at full asking). Strange. I have some content coming out soon though!

www.ebay.com/itm/111686911765?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Ljsav5D_TE6&sssrc=4429486&ssuid=K8gv8TS9R3W&var=&widget_ver=artemis&media=COPY

Thank you for your input.

You can email me at restoroosterohv@gmail.com

Ouch… anything other than replacing the case half is risky (if it throws a chain, good chance of major top end damage). Case halves are matched so technically you would need a case set to be repaired properly. Now with the disclaimer out of the way, JB weld is pretty strong if done correctly but I would recommend taking the bike/engine to someone who can tig weld the original piece on or build up weld in that spot and regrind it to shape. Good luck however you decide to go.

@@restoroosterohv thanks a lot man yea I think I’ll see if I can get a tig weld somewhere because the holder broke so clean when I hold it In place you can’t even see the crack it tell it’s broke but yea man I appreciate it

www.ebay.com/itm/163734036258?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=4qcIU-gFTJm&sssrc=4429486&ssuid=K8gv8TS9R3W&var=&widget_ver=artemis&media=COPY Be sure to remove one of the seals

@restoroosterohv thank you very much have a great day thanks for the videos helps out alot keep it up we appreciate it

I appreciate you!

Thank you. I appreciate your kind words and support.

Glad I was able to get his bike back up and going.

A lot of fun when you have others to ride with. Thank you for watching.

@restoroosterohv I learn a lot watching your channel. No matter what your working on. 🤘

Always a good idea to replace the cam chain and tensioner on a bike you don’t know the history of. Cheap insurance.

@@restoroosterohv ye the bike is like 1700 USD so I was planning if I buy it just take it to someone that knows more and change what needs to be changed. Its like if I buy a bike that is 2400 USD I maybe get the same bike with same issues and pay more for it. So I would rather buy it for 1700 USD put 700 USD back into it and have a perfect running bike. Did you watch the video btw? You don't have!!! But if you did what you think about the engine? does it sound fine or does it sound junk?

@unsmonster4024 where is the video?

@@restoroosterohv I posted it on my channel it's a RUclips short.

Thank you for your support!

Thank you for your comment. I grew up on 2 stroke bikes and I will get one now and again but always go back to my 450. Maintenance is key with any machine.

Yeah, they are almost bulletproof. Lack power but reliable machines

Yes, you can get larger or “big bore” kits for them. 77mm is standard

Is there a piston kit size larger than the standard 77.mm, sir? Maybe a 78.mm piston.

80mm would be the next size. The kit would include the oversized piston, rings and cylinder.