20 Ladd Rd, NEW GISBORNE, VIC 3438
Phone: (03) 5428 1331
Fax: (03) 5428 4735 		Authorised Dealer for:


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Engine Tuning and Porting


2002/2004 TM250 4T - BLACK DREAM
This bike has been Jeff’s project bike for the last couple of years. With over 500 dyno runs it has been the focus of some serious development. Extensive modifications raise peak power from 28BHP TO MID 30’S. With increased bottom end from 11BHP to 18+BHP. Stall resistance is also increased.

With all the modifications done to the 2003 engine everyone who rides it mistakes this engine for a 400! NO BULL! Latest cylinder porting was developed in August ’03 and has increased the top end at the rev. limiter a staggering 50% over standard. The power doesn’t drop off making it super fast in drag races - will beat most 2 strokes and 400 four strokes!


MODIFICATIONS LISTGAIN BottomMidTopOver Rev
Muffler - Jaydee developed (change over)60%20%+2BHP+4BHP
Cam Timing - Supply your camshafts and we modify them10%10%--
Cylinder Porting - Cylinder head and carby-12%18% +5 BHP+11 BHP

Performance Dyno Tuning and engine development on all bikes


2002/2003 TM300E
With this model we have developed changes to increase the bottom end, similar to a KTM 300. The standard midrange hit has been eliminat ed with Jaydee jetting, ignition, pipe, power valve and gearing settings. There is no loss in mid to top end - just a seamless increase in power making the ’03 TM300E one of our favorite all time 2 stroke bikes.




One of our specialities is getting more power out of your bike.
Dyno tuning along with :
Dyno Graph
  • Jetting
  • Exhaust mods
  • Air intake mods
  • Engine Mods
  • Power Valve changes
  • Porting
We have experimented with many bikes and are confident of improving the performance of your machine.
  • More Power
  • Smoother Power Devliery
  • Greater Stall Resistance
  • Quieter!
Click on "View Graph" on the right to see the dyno graph of the bike.


BikeDescriptionView Graph
TM 250Black Dream Vs standard TM 250Click here to view graph
TM 250 JaydeeTM 250 4T JD 2003 Vs Yamaha WR 250F-02
TM 250 Jaydee Engine (Black Dream)Black Dream Vs Yamaha WR250F-02
TM 300Adj Power Valve and Modified Pipe
TM 400Short Taper Muffler
Jaydee quiet enduro muffler
Vs
Stock Enduro muffler
TM 400Short Taper Muffler
Jaydee quiet enduro muffler
Vs
MX factory muffler (loud as!)
HUSKY 250WR ’01 Standard Vs Jaydee Pipe
The standard bike lack’s bottom end at 4500RPM. So this pipe was developed in-house to fix the problem. As featured in ADB 280 article. Used with our gearing transforms this bike.
Mods. Suit 99 - 04 Husky 250WR
HUSKY 250WR Husky 250 '01 JD mod Vs Stock KTM 300 '03
HUSKY 360WR 2000HUSKY 360W R ’00 (+18% increase - stage 2)
As described elsewhere on our website, this engine lacks top end. The stock engine revs past 6000RPM with out any power. Ported barrel, head modification, powervalve modification. Pipe change takes power from 47 to 50/52 BHP.Modifications suite all Husky 360WR 93-98 & 99 - 04
HUSKY 360WR 1999 HUSKY 360WR ’99
Jaydee Dyno Tuning + centrifugal timer adjustment
HUSKY 410te 1999Improved Muffler Core Vs Standard Core
HUSKY 510te 2004Improved Muffler Core Vs Standard Core
HUSKY 570te 2001HUSKY 570TE ’01 SMR (+20% Increase - stage 3)
How fast do you want to go? The standard engine had a drilled airbox, cored muffler, and had been jetted. Modified engine featured Jaydee ported head, hi-comp modified piston, Barrett exhaust system and dyno tuned.
Mods. Suit all: 610TE, TC & SMR Huskies, 570TE, TC & SMR Huskies
HUSKY 570te 2001HUSKY 570TE ’01 SMR Jaydee Jetting
Vs
Stock
KTM 200 2001Before/After Dyno Tuning
Vs
Stock
KT M 250exc 2001KTM 250exc vs HUSKY 250 ’01
Just for interest. The Husky has more top and mid range with a Jaydee pipe. Both bikes had been dyno tuned. Very similar power but very different feel when you ride the bikes.
KTM 300exc 2001Before/After Dyno tuning
Before, this is very typical of bikes we get. by carefully setting your carby, power valve ignition, etc to our fuel look at the result.
KTM 300exc 2002KTM 300EXC ’02
Before and After Power valve change
KTM 300exc 2004KTM 300EXC ’04
Before and After Dyno Tuning
KTM 380exc 1999+15% midrange - stage 2
This customer wanted a faster 380! Top end wasn’t going to help so stage 2 porting was done for bottom end, mid range and dyno tuned for smooth power. Throttle crack mono’s in top gear on ¼ throttle! Impressive engine as so smooth and easy to ride. Mods suits all KTM 250,300,360 & 380 models.
KTM 640sc 2002Before and after dyno tune
Two examples. Before/after tuning.
Airbox lid cut, stock exhaust and muffler. Custom needle machined and jetted. More power and smoother. Runs better at low RPM with improved stall resistance.Mods. suit all KTM 640’s
GasGas 300e 2002+25% increase - stage 3
Jaydee engine stage 3. Standard pipe, muffler, carby. Ported barrel, cylinder head mods. Crankcase split, welded and reshaped. Dyno tuned. 39BHP stock. 50BHP modified with no loss os bottom end.
Mods suit all Gas Gas 300’s.
Honda XR400 1997Jaydee Jetted with tail pipe end cap mods.
Kawasaki kx250 1998Before and After Dyno tuning
VOR 530en 2002Vs Ktm 520exc