2003 Arctic Cat 500 Muffler

[tattooedcat]

anyone have any ideas how to repair spark arrestor appairantly its stripped out and need to weld something in there to correct back pressure, dealer says its going to harm motor/ i've road all winter like this with no probs any ideas/ or is there after market muffler??

[ProComp]

I have some serious doubts about it harming the motor and the spark arrester is usually just a screen that really doesn't provide much back pressure at all. HMF makes a slip on for your 03 500. Good amount of power increase but its a lot louder too.

[tattooedcat]

I have some serious doubts about it harming the motor and the spark arrester is usually just a screen that really doesn't provide much back pressure at all. HMF makes a slip on for your 03 500. Good amount of power increase but its a lot louder too.any idea where to get the after market muffler and how much??

[ProComp]

About $225.00 US. See if Vinnie at Excel Tire has an HMF supplier. Try ebay.
You'll need a main jet and a pilot jet as well. 42 or 45 pilot (some harely dealers have these) and a 155/160 keihn main jet or a 150/155 Dynojet.
If noise it not an issue, you can run a tractor pipe from Princess Auto Too.

[tattooedcat]

About $225.00 US. See if Vinnie at Excel Tire has an HMF supplier. Try ebay.
You'll need a main jet and a pilot jet as well. 42 or 45 pilot (some harely dealers have these) and a 155/160 keihn main jet or a 150/155 Dynojet.
If noise it not an issue, you can run a tractor pipe from Princess Auto Too.so can i just weld a plug over the spark arrestor for now or does it need to be open at all

[ProComp]

so can i just weld a plug over the spark arrestor for now or does it need to be open at all

Hmm, ya kind of lost me on that one. Isn't the spark arrester internal in the stock pipe? Pipe has one outlet so, what would you be welding a plug over?
Do you have the stock pipe apart?
here's a great resource for you as well - www.arcticchat.com

[tattooedcat]

Hmm, ya kind of lost me on that one. Isn't the spark arrester internal in the stock pipe? Pipe has one outlet so, what would you be welding a plug over?
Do you have the stock pipe apart?
here's a great resource for you as well - www.arcticchat.com (http://www.arcticchat.com)no my cat has 2 one near middle on bottom then one at back as well, but it sounds like you modded your exhaust would you happen to have your factory one for sale perhaps, i think i'll be putting an hmf on with the jet kit but for now i'd prefer stock

[ProComp]

Well my neighbor has my old 03 with an HMF on it but I don't think he'll sell the stock muffler as he likes to keep everything. My 05 wont work.
You've got my curiousity up. May go have to look at his stock muffler or mine. If its running fine, weld it up just keep running it. Maybe call another dealer or two for a second opinion if you want.
There are no spark arresters in our HMFs.

[tattooedcat]

well i finally figured it out its just a plug that is to blow carbon out of exhaust, dealer said it was stripped out but just looked as if it fell out, so i tapped it to 1/2 in and screwed a bolt in it worked fine,:sweatdrop:

[ProComp]

Now that sounds more like it.