Question about 2008 Gas Gas EC 200 Hobby

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The best pipe/muffler 07' ec200

I have a new 07' ec200 that is lacking in performance and after trying a JD kit that has only helped slightly i was thinking of a different type of exhaust maybe FMF which made a big difference on my previous bike 200exc. Has anyone got any suggestions other than the exhaust ?...alltitude is upto 1200' and temp is around 15c to 30c. 45p / 178m / blue needle #4/ as 1 1/2.

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I am not sure as to where you wwant more power. I hear the JD needle makes the bike smoother. If you need more bottom end power a switch for 13:52 gearing will help LTR power valve cover a POWER NOW PLUS POWER NOW (carb divider plates), FMF Gnarly for bottom end, and a 2K2 igntion. As for your jetting it sounds like you could go down on the pilot one size and raise the clip up one position.,,,

Posted on Nov 10, 2008

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I my JD 757 developed hole in muffler. Replaced this spring. Is still pretty loud. What else could be wrong. Gasket? I did tighten two muffler attachments at the engine


Check everything from the exhaust manifold back, Use water pump channel locks to squeeze the pipe every few inches to see if it is weak,

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DIY Replace Back Muffler / Resonator with Straight PipeSubject: DIY Replace Back...


DIY Replace Back Muffler / Resonator with Straight PipeSubject: DIY Replace Back Muffler / Resonator with Straight Pipe
Title: Increase Fuel MPG by Replacing Back Muffler

Overview:
When your back muffler fails, and or if you want a bit more gas milage, replacing the back muffler with a straight pipe seems to work fine and increase MPG. This is much cheaper than purchasing a back muffler with DIY or to have a local customer shop install a straight pipe.

Symptoms:
Back muffler failing, onion peeling and / or holes in the back muffler.

Experience Level:
Medium

Tools Needed:
Hack Saw, Ratchets, Wrenches, etc.

Time Needed:
About 1 hour:

Parts Needed:
Pipe parts from local auto store. Exhaust sealers, hangers, pipe tip (stainless)

Procedure:
Remove the back muffler by cutting the pipe before the muffler about 2 inches in front of the muffler. Replace with straight pipe components or have a shop do it. You will need some time to get it 100% right. It took me a couple of tries.

Outcome:
- Money savings in replacement.
- Slightly louder, but not much. Actually a better sound (subjective)
- 1-5 MPG gas savings, especially on open road.

Discussion:
I have done this on a 99 9-5 I4 for about 1 year now and it seems to be working fine. I am getting about 3+ MPG on the open road since this was done. It is an automatic with 140k miles solid 29-30 MPG with regular fuel on the open road. I really do not see the need for the back muffler / resonator at the present time.

I will be doing this on a 2001 V6 wagon soon. The muffler will be failing soon.

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1 Answer

Exhaust question 93 silverado 5.7l 350. Singlr pipe Think its 3 inch pipe. There is no cat. On it and the muffler is cracked down the middle. Should i put a new muffler/glasspack in for performance reasons...


If you have no catalytic converter and replace the muffler with a straight pipe,, you WILL NOT BE ABLE TO HEAR YOURSELF THINK!!.. I took the converter off mine and it was SOOO loud.(have a Flowmaster dual outlet).. It WAS TOO LOUD.. I put a 28" "glasspack" inline..WHEW.. I can actually hear the radio now!!!

Flowmaster Mufflers

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Would after market slip on exhaust affect engine compression of zx10r? What is the best after market exhaust slip oni can to use that would have no effect at all on the power of the zx10r? Are there any...


As long as you get a muffler that is comparable to a stock muffler then it will have no effect on the performance. Most aftermarket companies make stock mufflers that would fit your bike though it would likely be cheaper to just replace them with stock kawasaki pipes.
As to replacing them, using an impact wrench will make removal easier and be sure to use a new clamp even if the old one looks good

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Smell fuel while running. Lack of power. Accelerator not responding right away. Stalls out. I put new wires and plugs on. Also put new coil packs on. Running a little better but still smell fuel and still...


you might have a plugged up catalytic converter,check and see how much pressure is coming out of the exhaust pipe, does it feel like the air is flowing out the exhast pipe smooth or just a little bit. you may have to take it to a muffler shop to have them check the pipe pressures before and arter the converter..

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Have 07 xl1200c sportster how can i make exhaust louder have standard pipes on dont want it to loud just more of a deep thud money tight dont want to keep with original pipes for now


Screamin Eagle mufflers work well. I've been running a set on a Dyna Wide Glide for years. They're not as loud as straight pipes. They come with removable baffles, I think. It's been years since I've mess with them but they used to. Also, some pipe manufacturers made "slip on" muffler replacements. They're much better for performance too as they present the engine with a bit of backpressure that the drag pipes do not.

Good luck
Steve

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1 Answer

My 1999 Honda shadow backfires on deceleration after steady throttle what could cause this? I have tuned it and cleaned the carb but it still does it.


The most common reason for backfiring is lack of back pressure from changing the exhaust. To compensate for the flat spot you get you put in a jet kit. This leaves the possibility of more unburned gas getting into the exhaust. Honda uses Kei Hin carbs with a fuel shut off diaphragm to help limit this condition (backfiring) by turning off the fuel to the carbs during deceleration. Even stock exhaust can pop or backfire. Typically it is caused by air getting into the exhaust either past the copper o-ring gaskets in the head or leaking muffler connections from the head pipes to the mufflers. Try replacing all the exhaust gaskets and you should minimize this condition.

Sep 05, 2010 | 1999 Honda VT 750 CD Shadow A.C.E. Deluxe

1 Answer

I would like to replace the muffle on my 2004 mitsubishi eclipse GT but instead of a clamp directly behind the muffler it appears to be farther back on the piping. would i eede to buy a kit to replace the...


Sounds like your new muffler should come with the extra pipe already on it to get you to the connection you speak of,if the replacement muffler does not come with the pipe then you will need to buy that pipe also

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1 Answer

Ideal jet combination for '07 tc450?


I have the 06 Husky TE510 so my jetting is different but I bought a JD jet kit and it has everything you need to set it up right. Check the plug and see if it is light almost white it is jetted too lean and you need to go bigger, if it is black it is too rich and needs to be smaller. A nice coco brown color is what you want to see.

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1 Answer

My motorcycle came with Cobra pipes and these are


Im not very familiar with your specific bike, but I do know what your problem is.cobra pipes are usually a straight-through design, meaning they have no muffler. the ones that do have a muffler usually have a very small one. smaller mufflers mean less fiberglass packing inside to absorb all of that noise. if your not too concerned about performance, then your best bet would be to go back to a factory exhaust. thats going to be the quietest one that you can use. Im sure there are also aftermarket systems available that also use a good muffler for noise control, but pretty much any aftermarket pipe is going to be louder then the factory setup. they are designed to give your engine more performance, which means less restriction for the xhaust gasses, which also means more noise due to the more open design of the pipes. Im not sure if your bike comes carbureted or fuel injected, but keep in ind that any exhaust changes made to a carbureted engine will require carburetor jetting adjustments to compensate for the change in exhaust flow. now, if you decide that your willing to lose just a tiny bit of performance for a quieter ride, then you may be able to find a used stock system on ebay for a very reasonable price. or if you want to stay aftermarket, then most companies test the sound levels of their exhaust pipes. by contacting the manufacturers, you should be able to obtain and compare the sound decible levels for different exhaust companies to find one that meets your needs.

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