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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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Thread Tools | Display Modes |
#1
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I've heard there's an insert to be installed between the exhaust port and tailpipe. What is a correct term for it, and where can you buy it?
Are there other ways to improve torque at low engine rpm? My EC300 wants to slowly die at idle when the engine is hot. Too rich air/fuel mix? |
#2
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That is a kdx trick. On the GG it is easier to get a power valve spacer or a larger cover elvis74 makes the spacers
And jakobi will be able to help you with the jetting
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2003 txt250 Pro 2013 Ossa 280i |
#3
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I have a larger power valve cover on my 2012 EC300R. Though it did give additional low end power, it wasn't very noticeable. The EC300 has lots of bottom end power as it is. The key is, is to utilize it. A flywheel weight will do just that along with correct jetting. Lots of riders say that the squish and port timing improve bottom end as well.
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#4
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Advance the ignition timing a few degrees by rotating the timing plate opposite the rotation of the flywheel.
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#5
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I think you have something odd going on. Low RPM torque problems are not normally associated with GasGas. I agree with what Terrance said about the large power valve cover. Hardly noticeable, but what I did notice was better jetting (old LTR kit) and switching to Amsoil premix.
Check your jetting. Add a flywheel weight.
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2004 GasGas DE250 |
#6
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Jetting is critical, a flywheel is a nice addition as well. I too would like just a bit more grunt right off idle and plan to play with port timing and squish on head when I do the top end this winter. The 300 is already very good but I ride some very slow rough technical mountain stuff and am getting up there in age so conserving energy is a good thing , lol. Instead of just grabbing a handful of throttle... Now I pick lines and chug through stuff.. One plus is you use way less fuel.
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Curtis Boise, Idaho 2019 xc300 KTM990 ADV 2005 DE250, son's bike. 2004 rm 134 son?s bike 1949 HD panhead custom 2015 Beta 430 Race Edition, sold 2008 ec300, sold 2011 ec200 sold 2004 Triumph Daytona 955I(sold) 2004 Honda RC51, Nicky Edition. Sold 2003 Aprilia rsv1000 R crashed KTM 450 XCW (sold) Husaberg FE 501, sold, FE400. sold 2004 KTM 200 exc.(son's bike)sold 2004 Mxc 450 , sold Many orange bikes also sold. |
#7
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While advancing the ignition will help performance in the low and mid rpm it will not likely fix your idle problem. Maybe try opening the air screw or a leaner pilot jet. Also check your reeds to see they are not cracked and that they are sealing properly.
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#8
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Thanks for your comments!
I'm a complete newbie with dirt bikes and offroad riding, and would like to ride at the low rpm spectrum to avoid the power peak. In addition, my road bike (Aprilia RSV) is equipped with a V2 engine and it delivers torque right from 3500 rpm and I kinda prefer riding using torque. While I'm new to dirt bikes, I am rather experienced in fixing and repairing bikes. I did buy a flywheel weight, but could not install it!!!! The bolt would always cross thread! Without the weight in place, I had no trouble threading the bolt (old or new). It seemed as if the extra weight did not center itself on the flywheel. Well, I returned the damn thing... |
#9
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What year is your bike and what has been checked?
Low compression (rings out of spec) can often cause soft power and an engine that feels like it needs more revs than it should. Poor idle and harder starting is also usually noted. If it's a used bike getting a bit long in the tooth it may be worth investigating. You'll never jet/tune around a mechanical issue. |
#10
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Guys, don't get me wrong.
Most probably there is nothing wrong with my bike (EC300, 2009, 2600km on the clock). I'd just like to have even more low-end torque than what I get. I have not been able to stall the engine one single time while riding, so I do not suspect that there is actually anything wrong. I am a newcomer to offroad riding with zero riding skills, and my needs for a bike are much different from die hard riders. |
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