Very insightful you can tell Sean has done that 100s of times now

@Pitbikesonic76

6 ай бұрын

He does make it look easy 👌

This is a great video.. watched it twice now!!

@Pitbikesonic76

29 күн бұрын

Thank you mate much appreciated 👍

last night my gearbox did that third gear neutral thing im jinxed now oh well 146 v2 here i come😮

Big up the Whitaker 👏🏼. Like the clutch holding tip.

@Pitbikesonic76

6 ай бұрын

Ginger god 🙌

i need to as well because my bokt stripped so this is right on time😂

This is an excellent and informative video you sir are a natural teacher good skills

@Pitbikesonic76

4 ай бұрын

Sean, one who does the engine, is very good. I will past it on your kind words.

I have a 140 and I rebuilt it put race cam and rings and everything correct I believe and I can't get more than 80 psi compression

GREAT TUTORIAL!

@Pitbikesonic76

6 ай бұрын

Thank you mate

that is mega helpful especially as we need to do a full tear down after yesterday's action and crankcase crackage!. Could do with a download of of Sean's brain when its available😆

@Pitbikesonic76

6 ай бұрын

I sent him your video he has never seen one crack there b4 !

@willgarrod9907

6 ай бұрын

@@Pitbikesonic76yes it is a weird one but we’re learning loads as we fix it. We want to be ready to do the last winter series round at Stretton in 2 weeks so it’s a bit of a rush.

I rebuild my engine just as shown in the video, bzt i gave a problem. The gears shift in the wrong direction, so n is all the way up and 4 is all the way down. Also, when i want to shift into n, its in some kind of gear but even when pulling the clutch lever, the back tire wont spin. I then have to kick the engine a bit and then its in neutral. Then i can start it normally, but when i shift into first i cannot get the bike going, i have to start in second gear to get it going

@MegaBughunter

29 күн бұрын

Ok i found my issue regarding neutral, the m6 bolt Holding the shiftdrum in place was loose. Now it is still shifting in the wrong direction. I have to add to that, that my first gear was broken, so i ordered a new gearset with the shiftdrum. Are there drums which work in the wrong direction?

Having trouble with my sons 140 pit bike. The clutch will not engage. Fitted new clutch plates, and it will not engage at all. Any advice would be amazing, thanks 😊

@Pitbikesonic76

14 күн бұрын

Have you put the lock washer on the back of the basket the right way round. Iv made that mistake before.

Suspension maitenance episode would be also very helpful! Regards!

@Pitbikesonic76

6 ай бұрын

If I have some problems with suspension, I'll do a video on it. My folks and shock have always been very reliable, so it's something iv never really mucked about with.

@sz004

6 ай бұрын

@@Pitbikesonic76 some periodic service operations should be done even if everything seems ok e.g. suspension oil wears out, there should be a proper amount of it in forks (mm belowe the top cap) and so on... your mechanic seems to be very competent, I would be pleased to hear his opinions. Greetings from Poland!

This video made me check my tension cap good job I did there's nothing there 😮

@Giblet16

6 ай бұрын

Engine only done 1800 miles on my road legal

@Pitbikesonic76

6 ай бұрын

The rubber ones do wear away quickly!

@Pitbikesonic76

6 ай бұрын

The stronger ones are the best engine upgrade

Great vid but which stator and flywheel are you using? I’ve tried to fit a lifan 150 system today but can’t get it to fit. Cheers

@Pitbikesonic76

5 ай бұрын

I use the Lightened one from Parker Racing www.ebay.co.uk/itm/165581566828?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=MxmeAqfSRCW&sssrc=4429486&ssuid=DRHV2jSqTsq&var=&widget_ver=artemis&media=COPY

my third gear is jumpin thats prolly it or broken teeth

Great video as always! Noticed there’s no oil slinger on the end of the crank on yours, is there any benefit to that?

@Pitbikesonic76

6 ай бұрын

Its because this engine was a gen4, and they don't have them. And I changed the casing for Gen 3. I'm getting a modified clutch adjuster bracket made, so I should be going back to Gen 4 soon 😁

@VinceFlaherty88

6 ай бұрын

@@Pitbikesonic76 aaaahhh makes sense buddy. Cheers for that! 👍👍

Where can I find that metal tipped cam timing plunger thing?

@Pitbikesonic76

6 ай бұрын

www.parkerracing.co.uk/product-page/yx140-timing-chain-tensioner-upgrade There you go buddy 👍

my yx140 is puffing white smoke abd leaking oil from the exhaust port, am i right in thinking thats valve stem seals? ne piston/rings cylinder is good still smokes and leaks. tia

@Pitbikesonic76

2 ай бұрын

Yh, will be one of them or both, bud 👌

@user-mr4wh2st6i

2 ай бұрын

@@Pitbikesonic76 ty for the reply! how likely do you think the guids are the problem? i just wanna get it all orderd in one go and get it fixed not fix one thing wait for parts for another tia

@Pitbikesonic76

2 ай бұрын

For how much it costs and what you have to take apart do both

@user-mr4wh2st6i

2 ай бұрын

@@Pitbikesonic76 the guids need to be pressed out and back in right? thanks for the response there arnt many detailed pit bike tuturials on these sorts of problems and almost no one actually replies haha u earned a follower for sure

@Pitbikesonic76

2 ай бұрын

Yeah, so the tool that's in the video will help you with that if we talking about the same thing If you need more help, message me on Facebook or Instagram 👌

do you get the whole year out of 1 engine? when i rode 140s was going true an engine every 3 months

@Pitbikesonic76

6 ай бұрын

It depends bud most time yes I get a whole season out of an engine before it gets taken apart again and checked over. But yes, I know a lot of people who will go through a few engines a season 🫣

@goon_eg1089

3 ай бұрын

I got 1100ish miles from my 140, head gasket blew, had the wrong valve specs for abit(think they were too tight from stock) just fit a topend. Compression was showing 150ish.

Valve clearance 0.04 - 0.06 ?

@Pitbikesonic76

6 ай бұрын

Intake 0.10 and exhaust 0.15