|
Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Making my EC250 more like an MC
I was thinking of an easy way of increasing the low end power on my EC250 is by changing over the jetting, silencer and CDI from an MC. Currently it runs very weak but smooth on the bottom and strong mid to top. I have to clutch it through slow turns to keep it on the mid-upper meat of the power band.
I know I can increase the compression by removing the gaskets and fixing the squish band but I don't want to open up the engine yet. In what order will these changes increase my low end and by how much, if any? I have ordered the LTR jetting kit and PV cover just to get that extra bottom. Thanks
__________________
EC250 2008 Skid plate, rad braces, Fork bleeders Drz 400 Motard '03 (full spec) Yz 250 '06, KTM exc 250 '05, exc 250 '04, exc 250 '02 WRF250 '02, KDX 220 '98, DT200R '93 all sold |
#2
|
||||
|
||||
The low-end will not be able to match the MC until you have head work done. It's cheap and easy, so why fight it.
__________________
Mike Baxter 2005 GasGas EC300 (Ohlins front and rear) 2007 Yamaha FZ1 2003 Pampera 280(hers) |
#3
|
||||
|
||||
changing to the lighter mc stator/rotar combo will make a huge differance
|
#4
|
|||
|
|||
I guess I'll change the base gaskets to one .3mm and shave the head by another .5 mm to increase the compression, since there is no reputable machine shop here in Athens to correct the dome shape and height.
BTW I looked up the parts catalog from the factory sight for the 2008 models and the MC head has a completely different part number. Should I just order that instead and check the squish with that head? I'll also check the price for the lighter DE ignition-flywheel combo. Won;t I have to get an extra FWW for tight woods riding? Thanks
__________________
EC250 2008 Skid plate, rad braces, Fork bleeders Drz 400 Motard '03 (full spec) Yz 250 '06, KTM exc 250 '05, exc 250 '04, exc 250 '02 WRF250 '02, KDX 220 '98, DT200R '93 all sold |
#5
|
||||
|
||||
All depends how deft you are with your right hand, now the only time i use the 3k ign is for night racing, gasgas has such sweet power delivery i.m.o. flywheel weight is not required
|
#6
|
||||
|
||||
I'm surprised, I think the low end on my '07 is pretty damn good. There are a lot of things you can do, but try some jetting changes first.
|
#7
|
|||
|
|||
GMP,
I think you guys in the states have the lighter ignition coil. Hence the better low end.
__________________
EC250 2008 Skid plate, rad braces, Fork bleeders Drz 400 Motard '03 (full spec) Yz 250 '06, KTM exc 250 '05, exc 250 '04, exc 250 '02 WRF250 '02, KDX 220 '98, DT200R '93 all sold |
#8
|
||||
|
||||
Quote:
Or from my perspective just stalls quicker |
#9
|
||||
|
||||
The flywheel has nothing to do with torque, it just dampens changes in RPM. If its snap your looking for than yes, the 2K-2 helps with that. I can see where finding more off idle torque by other means will help the bigger flywheel spin up a bit quicker. I like the lighter 2K-2 ignition with a small weight and G2 throttle, 200 cam.
|
#10
|
|||
|
|||
GMP
What other means do you suggest apart from LT jet, PV cover and base gasket- head shave? I have already ordered the jet kit and PV cover and I hope they will help the low down torque of this otherwise fantastic bike. I have geared down to 13/50 also.
__________________
EC250 2008 Skid plate, rad braces, Fork bleeders Drz 400 Motard '03 (full spec) Yz 250 '06, KTM exc 250 '05, exc 250 '04, exc 250 '02 WRF250 '02, KDX 220 '98, DT200R '93 all sold |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
difference between ec250 and ec250 race? | Dirt Addict | General Discussions & Announcements | 2 | 10-24-2009 02:56 PM |
Making a 450 into motard | offroadfreak | General Discussions & Announcements | 3 | 11-21-2007 11:25 AM |