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Keng Engine

สำหรับคนชอบมอเตอร์ไซค์
Motorcycle Parts Store
Motorcycle Repair Shop
High performance motorcycle engine parts and tuning.

Specialized in CRF, KLX, CBR and big bore engines.

23/05/2026

🔥 D-Tracker 250 Motard 352cc by Keng Engine 🔥

Not just a normal engine swap…
This bike was built with a fully custom setup from the ground up 😈🚀

✔ 352cc Engine Setup
✔ Custom-built wiring harness
✔ CRF250 ECU conversion
✔ DynoJet custom tuning
✔ Full performance setup by Keng Engine Chiang Mai

This project combines Kawasaki chassis + Honda ECU technology + custom tuning experience into one crazy machine 🔥

📈 Dyno Result:
✔ Max Power: 37.03 HP @ 8,750 RPM
✔ Max Torque: 24.33 lb-ft @ 6,810 RPM

The most impressive part is not only the peak number —
the power delivery is smooth, aggressive, and very usable throughout the RPM range.

📊 Dyno Graph Explanation:
✔ Strong low-end torque
✔ Hard-hitting mid-range power
✔ Smooth top-end pull up to nearly 9,000 RPM
✔ Stable AFR for better combustion and engine safety

This means:
⚡ Faster acceleration
⚡ Immediate throttle response
⚡ Strong corner exit power
⚡ Perfect for street riding and supermoto fun

A custom-built machine like this takes time, testing, fabrication, wiring, dyno tuning, and real-world experience.
This is not a bolt-on setup — this is a full custom performance build 🔥

Keng Engine Chiang Mai 🇹🇭
Dyno tuning • Big bore kits • Custom ECU setup • Performance engine builds

23/05/2026

⚠️ NOT FINISHED YET ⚠️

The second injector started having problems during dyno tuning today 😅🔥

So this is NOT the final power result yet…

We’re going back to fix the issue and continue testing again soon.
Even with the problem, the bike is already showing serious potential 👀

Imagine when everything works 100% 💥

Follow the page and wait for the final dyno numbers 🇹🇭🔥

Keng Engine Chiang Mai

22/05/2026

🔥 CRF 410cc Big Bore Dyno Test — Just the Beginning!

This is a CRF engine upgraded to 410cc, tested on the dyno with an 18-inch rear wheel.

Current result:
✔ Max Power: 49.14 HP @ 7,610 rpm
✔ Max Torque: 34.83 ft-lbs @ 6,610 rpm

And this setup is still not 100% complete yet.

During dyno tuning, we found an issue with the 2nd injector system, so the bike needs to come back for correction and another dyno test.

I don’t even want to imagine how much more power it could show if this bike was tested with a 17-inch wheel… or even a 12-inch wheel.

This is only the beginning.
More testing, more tuning, and more power are coming soon.

Follow Keng Engine for the next update 🔥

Keng Engine Chiang Mai 🇹🇭
Real Dyno. Real Results.

22/05/2026

🇲🇾 Hello my Malaysian friends 🙏

I’m planning to travel to Malaysia soon, around Kuala Lumpur or nearby areas.

If any of my friends or customers in Malaysia need anything from Keng Engine, please feel free to message me.

Maybe I can bring some parts with me during this trip — small parts, special parts, or anything you need from Thailand.

If you have any bike project, engine upgrade, CRF / CBR / KLX parts, camshaft, big bore kit, clutch upgrade, intake, ECU, or tuning questions, you can talk to me first.

This trip is not only business — I’m happy to meet friends, talk about bikes, and help if I can.

If you need anything, please let me know before I travel so I can prepare it for you.

See you soon, Malaysia 🇲🇾
Keng Engine Chiang Mai 🇹🇭

18/05/2026

🔥 SHIFT PRO Fuel Management System 🔥
Easy fuel tuning. Better control. Better performance.

When upgrading your engine with a big bore kit, camshaft, exhaust, intake, or larger injector, fuel delivery must be properly controlled.
Simply changing to a larger injector may increase fuel across the entire RPM range — making the low RPM area too rich, causing hesitation, poor combustion, and slower throttle response.

Shift Pro allows precise fuel adjustment in specific RPM ranges directly through your smartphone and the Shift Pro App.

✔ Precise fuel tuning across the RPM range
✔ Fuel adjustment from +50% to -100%
✔ Real-time RPM monitor
✔ GPS speed display
✔ Injector Duty Cycle display for injector analysis
✔ Save up to 3 tune files
✔ Data Logging for performance monitoring
✔ Plug & Play installation

📌 Compatible Honda PGM-FI models:
CBR 250 / 300
CRF 250 / 300
CL 300
Rebel 250 / 300

Perfect for Performance / Big Bore / Racing / Touring builds.

Tuning Made Easy. Performance Perfected.
https://www.facebook.com/KengEngine/

16/05/2026

CBR250-300 CRF250-300
Keng Engine Chiang Mai 🇹🇭
https://www.facebook.com/KengEngine/

13/05/2026

CBR500 Engine 🫣

05/05/2026

🔥 Before vs After – CRF300 to 309cc Upgrade! 🔥
By Keng Engine
🔵 Blue Line = Before (Stock)
🔴 Red Line = After (309cc + Tuned)
📊 Dynojet Results:
✅ Max Power
Before: 22.44 HP
After: 30.28 HP
➡️ +7.8 HP Gain 🔥
✅ Max Torque
Before: 16.64 lb-ft
After: 21.07 lb-ft
➡️ +4.4 lb-ft Gain 💪
💥 Real riding feeling: ✔️ Stronger low-end response
✔️ More mid-range pull
✔️ Better top-end flow
📌 Perfect for: Enduro / Touring / Performance builds
📩 Contact us:
https://www.facebook.com/keng.engine⁠�

05/05/2026

Sharp Press Tool
For CBR / CRF 250–300

04/05/2026

🔥 Billet Clutch 6 Plates / 6 Springs Upgrade 🔥
More grip. More power. No slip.
✔️ 6 plates + 6 springs (stronger than stock)
✔️ Built for big bore & high performance engines
✔️ Better launch & smoother power transfer
✔️ No clutch slip under high load
✔️ Durable for racing & heavy use
💥 A must-have for serious performance builds
📩 DM for more details
📦 Worldwide shipping available
KENG ENGINE
ENGINEERED TO WIN 🏁

03/05/2026

BILLET CLUTCH KIT – 6 PLATES / 6 SPRINGS 🔥
Upgrade your clutch performance to the next level.
✔️ Stronger grip
✔️ Smoother engagement
✔️ More reliable under high power
Fitment:
CRF250 • CRF300L • CBR250 • CBR300 • CB300F • CB300
👉 2 Options Available
Option 1 – Kit Only (Without Clutch Basket)
You need to machine the basket deeper by 1.00 mm
Option 2 – Complete Set (Ready to Install)
No modification required
👉 Just bolt on & ride
💪 Perfect for big bore / high performance engines
📩 Message us now for more details
KENG ENGINE 🔧

ที่อยู่

หมู่บ้านศรีอนันต์ทาวน์เฮ้าส์ ซอย7
Chiang Mai
50000

เวลาทำการ

จันทร์	09:00 - 18:00
อังคาร	09:00 - 18:00
พุธ	09:00 - 18:00
พฤหัสบดี	09:00 - 18:00
ศุกร์	09:00 - 18:00
เสาร์	09:00 - 18:00