Honda 143cc Big Bore Kit - Piston/Barrel Install

PART 1: • Thai Drag Bike Update!...
PART 2: • Under the plastic | Ho...
PART 3: • Honda 125cc Engine Rem...
PART 4: • Honda 125cc Engine Dis...
‪@OddsandEndsMachining‬ is the V Twin building channel. Go take a look!
Buy me a Coffee: www.buymeacoff...
MOVING OUR WORLD: / movingourworld
Website: www.movingourw...​
Instagram: / smallbikestuffig

[@kassprujean9328]

Lighting that book on fire was a good time haha

[@sidney9534]

2:10 Jaysus, that can of cleaner is definitely at least $6 and you're using it like a garden hose. I'm triggered.

[@SmallBikeStuff]

Cheaper than a rogue fragment causing a rebuild!

[@rmdhndwi]

I've work with this 125 engine for couple of years before, i guarantee, the first one to fail is the cam chain tensioner assembly, it fail regularly, even it's stock I've done dozens of bikes, same problem (wave 125/110, same tensioner style) So be careful when upgraded the camshaft and harder springs (raised rpm limit also), mine was exploded 2 times, luckily, nothing hurts I modify it to manual, so far so good, you can watch in my channel Or try buy from thailand/malaysia, the aftermaket one has different materials, more durable, but i think the tensioner will give up first 🤷🏻

[@TheGreatOldOak]

My NBC110 blew up thanks to this issue. Is it possible to get a better quality/more durable cam chain tensioner assembly?

[@rmdhndwi]

@@TheGreatOldOak my better guess is to keep the oil level enough, because they are hydraulic lifters But to really bulletproof, need to modify

[@Reza-ws1xt]

Hello, what are the exact specifications of the cam shaft?

[@SmallBikeStuff]

Hello, I can't be sure. It came in a kit from Hispeed Thailand. They have lots of parts on their website.

[@andrewwilson8555]

I’m glad Kass got to experience Francis

[@kassprujean9328]

Made my day haha

[@laurencorbett5175]

Hi there may I ask what head and cylinder kit you used?

[@SmallBikeStuff]

Hispeed brand - made in Thailand.

[@hcteksnamuh]

what else to be changed when putting in big bore kit?

[@SmallBikeStuff]

Up to you really. I did big bore kit, new head, new oil pump, new cam, new clutch etc.

[@deznutz25]

Stock injector and TB?

[@SmallBikeStuff]

This video details the kit: kzbin.info/www/bejne/bqnIkoRtiJp3oM0

[@JeffKopis]

Why go to all that effort and expense for a lousy 18cc more?? Whattya get, ONE more hp?

[@SmallBikeStuff]

Doubled HP almost. Did it because I wanted too and it was good fun.

[@JeffKopis]

@@SmallBikeStuff Thats a good reason. But how did 18cc double the power?

[@SmallBikeStuff]

@@JeffKopis only just saw this now. Basically thanks to the huge amount of flow provided thanks to the head. The big bore kit on its own won’t have done a huge amount - probably just increased acceleration slightly. But having much larger valves in the head with a high lift cam allows the whole package to breathe well and more flow is more power. The stock injector was using about 20% of its capacity and with the current tune it’s increased to around 95%.