150cc Bore Install!! - Yamaha YBR125

Yeeeeeeeet!!!!!!!!!!
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[@matthewknight-mansworth2189]

Look like there sealing fine you can't tell by looking get a compression tester

[@ToeKnee666]

Nice bro. I'm just waiting on an engine with a brand new 150 kit already installed for my xr

[@BikerBrad72]

Lovely mate

[@ToeKnee666]

Got it installed a couple days ago. Sounds meaty as fuck haha, definitely more torque. Am upgrading too a 26mm carb tho as it bogs at 60 with the 24mm stock

[@reecetaylor9518]

Whats the top speed you got outta it

[@ldorman]

Whats the power gain?
the stock 125 can get up to 12hp so what are you running with 150cc?

[@TE_53349]

17hp

[@richyboy1116]

Hi mate, did you have to change the fuel injector or anything else? I've just done this to mine so asking if I need to do anything else as the idle seems low now even if I turn the screw out

[@TE_53349]

any ticking is possibly due to valves

[@matthewknight-mansworth2189]

You wanna calm down and take more time, did you check your timing and valve clearances properly

[@BikerBrad72]

This was uploaded 2 years ago mate on bigger and better things now! 150 GY6 being uploaded this week! Also, i always check everything properly, but i also get it right first time haha

[@motomcrspy]

Any update on how it’s running today mate?

[@BikerBrad72]

Still going strong about 5 owners forward 😂

[@user-mr1fs4kc3k]

How did you check the timing is correct on this

[@bikerslabtraveler6321]

So what about pickup ..stock ybr pick up is very low..

[@BikerBrad72]

Absolutely lovely

[@jbird3214]

Alright mate
I've got a ybr125 2010 fuel injected model.....
About to put a 183cc big bore kit on
any tips or warnings you can pass on would be much appreciated?
I can fit it myself no problem but do I need to upgrade anything else on the bike to keep it all sweet?
Or.......just whack it on and Ride?
Cheers

[@JamesBrown-vt9kr]

Hi did you do the upgrade?

[@aaronsutton9612]

Can you tell me how you did this. I fitted it and then it wouldn’t start did you get anything else for it or did you have to reset anything

[@BikerBrad72]

Did you gap the piston rings mate

[@stedking1070]

Ok we're the hell do I get the kit to do this I have a 56 plate ybr 125 but want that little more out of it so making it a 150cc should do the trick so we're do I get it from n wats a rough price bud oh I'm in the UK 👍🏻👍🏻 cheers dude

[@BikerBrad72]

Sorry for taking so long!! It was ebay mate

[@syrea793]

Ebay and around £50 - £60

[@joshuasalisbury789]

Did ya have to do anything the fi

[@lukejepson9443]

what what the handle bars mate they looking nice how would 150 kit work on my injected 2009 ybr

[@BikerBrad72]

Renthal flat bars, buy from the official website for quality! Only £40 something so definitely worth it.
150 kit would work but just learn about piston ring gaps and how to do them before buying the kit as you have to do that yourself in the installation.
I miss my blue 2009 YBR it was a machine

[@lukejepson9443]

Do you have a link for the ones on the bike please and yeah I though so I've done em before just not on a bike that's injected shouldn't make a difference should it

[@ukuxfirecrew_brad1310]

@@BikerBrad72 what website and size? Struggling for my ybr 2010 carb model lol parts I can’t find

[@hjaltedalby9921]

Where did u buy the kit?

[@andytrace]

Make the music stop!!! 🤣🤣🤣🤣

[@rockybalboa8208]

Hi may i know what’s the size of your mainjet and pilot jet?

[@BikerBrad72]

There aren’t jets because its fuel injected

[@rockybalboa8208]

@@BikerBrad72 ohhh! Hahah because mine is carb. I didn’t realise yours was the 2015 model

[@jackallinson-sheldrake9531]

Do you not need to change ecu or anything

[@BikerBrad72]

Nope :)

[@GAMESY-qd7to]

What pipe u got

[@tahirakram8441]

my friend didi this i checked that just little bit difference I felt i think its not worthy but do one thing more remove air duct and also use ignition coil of any 400cc or 300cc bike, you will see big difference.

[@goodghost6182]

Bo

[@JamesBrown-vt9kr]

So are you saying that an changing the ignition coil makes more of a difference than the big bore kit?

[@tahirakram8441]

@@JamesBrown-vt9kr no bro I mean if you use 300cc bike' ignition coil than performance will more enhance
But only with 150 bore can't make much difference

[@JamesBrown-vt9kr]

@@tahirakram8441 okay so what about doing a performance ignition coil and cam will that make a difference?

[@tahirakram8441]

@@JamesBrown-vt9kr it will cross 125 km ph

[@wrestleview7288]

Top speed

[@BikerBrad72]

80mph

[@classix2132]

Just relax men your too hype