KTM, Husqvarna & GasGas
2-Stroke Engine Packages
Unlock the hidden potential of your Austrian 2-stroke. From KTM 50 SX mods for Loretta Lynn's qualifiers to GasGas 125 porting for the weekends, our factory-level engine services are the answer to how to make your 2-stroke faster and more reliable.
KTM Engine Performance
The 50cc class is won or lost on clutch engagement and off-idle torque. Most parents make the mistake of chasing peak horsepower, but a 50cc engine needs to pull hard against the centrifugal clutch to launch effectively. We blueprint the cylinder to correct factory timing variances that cause bogging, and we optimize the squish band to ensure clean combustion for hesitant throttle hands.
- Squish Correction: Eliminating the 'lazy' factory gap for instant snap.
- Port Timing Blueprint: Matching transfer heights for consistent power.
- Clutch Synchronization: Engine tuning specifically designed to load the centrifugal clutch harder.
Transitioning to a manual transmission is the biggest hurdle for a 65cc rider. Our engine packages focus on widening the 'meat' of the powerband. A stock 65 can fall off the pipe easily between shifts. By altering the exhaust port shape and optimizing the crankcase volume, we create a 'forgiving' engine that carries momentum through gear changes, allowing the rider to focus on the track, not the shifter.
- Broad Power Curve: Reduces the penalty for shifting early.
- Transmission Micro-Polishing: Friction reduction for effortless shifting.
- Case Matching: Removing casting flaws that disrupt intake velocity.
In the 85cc and Supermini classes, the physics of airflow change drastically. We are pushing these small cylinders to 14,000+ RPM. At these speeds, boundary layer separation in the transfer ports kills power. Our Factory Spec packages involve extensive epoxy work and reshaping of the transfer tunnels to maintain laminar flow, ensuring your Supermini doesn't just rev, but actually accelerates at high RPM.
- Supermini Stroker Ready: Port timing specifically calculated for 105cc/112cc displacements.
- Power Valve Blueprinting: Ensuring both sides open perfectly symmetrically.
- Ceramic Coat Options: Heat management for 20-minute motos.
The 125 two-stroke is the purest expression of fluid dynamics in motocross. Stock cylinders often suffer from 'short side radius' issues in the exhaust port, choking off over-rev. We utilize specific time-area (STA) calculations to reshape the exhaust port, allowing the engine to breathe freely at 12,000 RPM. Whether you're fighting for a holeshot or just want that factory sound, our 125 packages are purely mathematical aggression.
- Exhaust Roof Reshaping: Raising the port roof for massive top-end gains.
- Boost Port Optimization: improving scavenging to clear burnt gases faster.
- Head Cuts: Custom dome profiles for pump gas or VP C12 race fuel.
Big bore two-strokes aren't about lacking power; they're about managing it. For the 250SX rider, we focus on broadening the hit to create a '450-killer' weapon. For the 300 XC/Enduro rider, our focus shifts to 'Linear Torque.' We reshape the power valve and transfer ports to eliminate the violent 'hit,' turning your 2-stroke into a traction-finding tractor that creates grip where others spin.
- Linear Delivery Tuning: Smoothing out the power curve for technical traction.
- Crank Balancing: Critical on 300s to reduce rider fatigue from vibration.
- Carburetor Taper Boring: Adding top-end rush without losing the low-end chug.
Husqvarna Engine Mods
The 50cc class is won or lost on clutch engagement and off-idle torque. Most parents make the mistake of chasing peak horsepower, but a 50cc engine needs to pull hard against the centrifugal clutch to launch effectively. We blueprint the cylinder to correct factory timing variances that cause bogging, and we optimize the squish band to ensure clean combustion for hesitant throttle hands.
- Squish Correction: Eliminating the 'lazy' factory gap for instant snap.
- Port Timing Blueprint: Matching transfer heights for consistent power.
- Clutch Synchronization: Engine tuning specifically designed to load the centrifugal clutch harder.
Transitioning to a manual transmission is the biggest hurdle for a 65cc rider. Our engine packages focus on widening the 'meat' of the powerband. A stock 65 can fall off the pipe easily between shifts. By altering the exhaust port shape and optimizing the crankcase volume, we create a 'forgiving' engine that carries momentum through gear changes, allowing the rider to focus on the track, not the shifter.
- Broad Power Curve: Reduces the penalty for shifting early.
- Transmission Micro-Polishing: Friction reduction for effortless shifting.
- Case Matching: Removing casting flaws that disrupt intake velocity.
In the 85cc and Supermini classes, the physics of airflow change drastically. We are pushing these small cylinders to 14,000+ RPM. At these speeds, boundary layer separation in the transfer ports kills power. Our Factory Spec packages involve extensive epoxy work and reshaping of the transfer tunnels to maintain laminar flow, ensuring your Supermini doesn't just rev, but actually accelerates at high RPM.
- Supermini Stroker Ready: Port timing specifically calculated for 105cc/112cc displacements.
- Power Valve Blueprinting: Ensuring both sides open perfectly symmetrically.
- Ceramic Coat Options: Heat management for 20-minute motos.
The 125 two-stroke is the purest expression of fluid dynamics in motocross. Stock cylinders often suffer from 'short side radius' issues in the exhaust port, choking off over-rev. We utilize specific time-area (STA) calculations to reshape the exhaust port, allowing the engine to breathe freely at 12,000 RPM. Whether you're fighting for a holeshot or just want that factory sound, our 125 packages are purely mathematical aggression.
- Exhaust Roof Reshaping: Raising the port roof for massive top-end gains.
- Boost Port Optimization: improving scavenging to clear burnt gases faster.
- Head Cuts: Custom dome profiles for pump gas or VP C12 race fuel.
Big bore two-strokes aren't about lacking power; they're about managing it. For the 250SX rider, we focus on broadening the hit to create a '450-killer' weapon. For the 300 XC/Enduro rider, our focus shifts to 'Linear Torque.' We reshape the power valve and transfer ports to eliminate the violent 'hit,' turning your 2-stroke into a traction-finding tractor that creates grip where others spin.
- Linear Delivery Tuning: Smoothing out the power curve for technical traction.
- Crank Balancing: Critical on 300s to reduce rider fatigue from vibration.
- Carburetor Taper Boring: Adding top-end rush without losing the low-end chug.
GasGas Factory Services
The 50cc class is won or lost on clutch engagement and off-idle torque. Most parents make the mistake of chasing peak horsepower, but a 50cc engine needs to pull hard against the centrifugal clutch to launch effectively. We blueprint the cylinder to correct factory timing variances that cause bogging, and we optimize the squish band to ensure clean combustion for hesitant throttle hands.
- Squish Correction: Eliminating the 'lazy' factory gap for instant snap.
- Port Timing Blueprint: Matching transfer heights for consistent power.
- Clutch Synchronization: Engine tuning specifically designed to load the centrifugal clutch harder.
Transitioning to a manual transmission is the biggest hurdle for a 65cc rider. Our engine packages focus on widening the 'meat' of the powerband. A stock 65 can fall off the pipe easily between shifts. By altering the exhaust port shape and optimizing the crankcase volume, we create a 'forgiving' engine that carries momentum through gear changes, allowing the rider to focus on the track, not the shifter.
- Broad Power Curve: Reduces the penalty for shifting early.
- Transmission Micro-Polishing: Friction reduction for effortless shifting.
- Case Matching: Removing casting flaws that disrupt intake velocity.
In the 85cc and Supermini classes, the physics of airflow change drastically. We are pushing these small cylinders to 14,000+ RPM. At these speeds, boundary layer separation in the transfer ports kills power. Our Factory Spec packages involve extensive epoxy work and reshaping of the transfer tunnels to maintain laminar flow, ensuring your Supermini doesn't just rev, but actually accelerates at high RPM.
- Supermini Stroker Ready: Port timing specifically calculated for 105cc/112cc displacements.
- Power Valve Blueprinting: Ensuring both sides open perfectly symmetrically.
- Ceramic Coat Options: Heat management for 20-minute motos.
The 125 two-stroke is the purest expression of fluid dynamics in motocross. Stock cylinders often suffer from 'short side radius' issues in the exhaust port, choking off over-rev. We utilize specific time-area (STA) calculations to reshape the exhaust port, allowing the engine to breathe freely at 12,000 RPM. Whether you're fighting for a holeshot or just want that factory sound, our 125 packages are purely mathematical aggression.
- Exhaust Roof Reshaping: Raising the port roof for massive top-end gains.
- Boost Port Optimization: improving scavenging to clear burnt gases faster.
- Head Cuts: Custom dome profiles for pump gas or VP C12 race fuel.
Big bore two-strokes aren't about lacking power; they're about managing it. For the 250SX rider, we focus on broadening the hit to create a '450-killer' weapon. For the 300 XC/Enduro rider, our focus shifts to 'Linear Torque.' We reshape the power valve and transfer ports to eliminate the violent 'hit,' turning your 2-stroke into a traction-finding tractor that creates grip where others spin.
- Linear Delivery Tuning: Smoothing out the power curve for technical traction.
- Crank Balancing: Critical on 300s to reduce rider fatigue from vibration.
- Carburetor Taper Boring: Adding top-end rush without losing the low-end chug.
Common Questions about Austrian 2-Strokes
Are KTM, Husqvarna, and GasGas engines identical?
Mechanically, yes.
The core engine architecture (cylinder, cases, transmission) is shared across the Austrian brands. However, airbox design and exhaust spec often differ, meaning a 'Husky' might require slightly different jetting or porting specs than a 'KTM' to achieve the same peak power.
Does porting a KTM 50 SX make it unreliable?
No.
Reliability issues in 50s usually stem from clutch heat, not cylinder mods. Our 'Mini Dad' packages actually improve cooling efficiency by reducing friction in the cylinder and correcting squish band clearance.