2004 fe550 ≥ 450 conversion
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- Joined
- Jul 30, 2012
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- 223
- Location
- South Africa
But why? If you really want to make it a 450, you would have to fit about a 90mm piston to get close to 450cc. The KTM 525 and the KTM450EXC share the same 72mm sroke, 525 has a 95mm piston and the 450EXC uses an 89mm piston, this piston could work and would give 436cc, the deck height on the KTM piston is 0.5mm higher than the Berg, so you would have to machine that off. Be sure it's the 89mm piston from an EXE model, the 450SX uses a different bore X stroke than the enduro models. Swapping a bottom end will not work, as Tourist said, the cases are different.
But why...?
But why...?
- Joined
- Mar 23, 2016
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- 422
- Location
- Burlington
Whaaatttt?
If powe is too aggressive then it can be detuned easy. Restrict air flow and possibly might need to re jet it. Jets alone would probably do it too. If you are new to the bike just give it some time and I assure you will get used to it. Then you will fall head over heals for it. U won't be looking back. Older gentelman sometimes want softer power and thats totally understandable. No need for any friggin 250.
If powe is too aggressive then it can be detuned easy. Restrict air flow and possibly might need to re jet it. Jets alone would probably do it too. If you are new to the bike just give it some time and I assure you will get used to it. Then you will fall head over heals for it. U won't be looking back. Older gentelman sometimes want softer power and thats totally understandable. No need for any friggin 250.
- Joined
- Jul 6, 2015
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- 141
- Location
- Germany
You should be happy for having the 550. After some time you'll get used to it...
I don't know if any of these make sense:
The throttle tamer should reduce the throttle valve lift - in theory - never had one.
Thicker head gasket should reduce engine compression ratio. Less overall power
Manipulating the ignition advance is more complicated - maybe not needed.
When you ask me - learn to ride the 550
That's time well spent!!!
I don't know if any of these make sense:
- Throttle Tamer
- less ignition advance
- thicker head gasket
The throttle tamer should reduce the throttle valve lift - in theory - never had one.
Thicker head gasket should reduce engine compression ratio. Less overall power
Manipulating the ignition advance is more complicated - maybe not needed.
When you ask me - learn to ride the 550
That's time well spent!!!Similar threads
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