Hi Everyone.
As part of my winter project I just replaced Harley muffler.
Do I need white spacer modification? I think part# is 65747-94
and I think it is Dyna muffler.
Please let me know what is next step.
Also I switched to raptor petcock.
I am still thinking whether I should check for tensioner.
I don't really hear rattling noise.

It's 2008 with 15806 km(9821miles).
With Dyna muffler lots of backfire.

Read about it in the Tech Section....... What you do with the white spacer mod,  is highly dependent on your elevation above sea level,which is why we often ask your location. Hiko suggests the use of a 150 main jet ,and I agree ,it's a rather a standard( good all around) jet to use with the Dyna muffler on a stock motor (I do).

kylejang wrote on 11/17/18 at 02:03:55:



If you can find some small washers (stainless steel or brass) with the same inside and outside diameters as the spacer then you can experiment with different thicknesses by stacking the washers.

I'm at sea level and found that about 0.5 to 0.6 of the stock thickness works well. By memory that was about 3 - 4 SS washers.

I would start with about 0.6 and see how it runs for a while. Reducing the thickness makes the bike run richer. I kept reducing the number of washers until it felt like it was running a bit too rich (it started to feel a little sluggish). Then I added one washer back in.

I only get the occasional pop, from the exhaust, on deceleration or gear change , on a crisp spring morning. Apart from that it runs great.

Keep in mind that running richer will affect your mileage.

kylejang wrote on 11/17/18 at 02:03:55:



I should have put my elevation in my previous post my elevation is sea level to around 800 ft  normally

Thank you thank you  

This link will have what you need to know:

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1309246277


Also refer to Batman's recommendations for main jet, and pilot jet sizes.

As for the air-mix screw, if you turn it all the way clockwise, then back it off 1.5 turns - that should give you a good starting point.

When I prepared to tune my carb, I ordered two jets smaller, and two jets larger, than the stock jets (pilot and main). They were only a few dollars each. Then I was able to use the method described in the link to experiment until I got it right - for me!

Hello. I really need help again. I installed raptor petcock, 3 washers, 150 main jet and fuel mixture screw 2 turn. Now I am having 2 problems, first engine dies when I downshift from 2nd gear to 1st gear when I shut off the the throttle . It dies very smoothly.  
Second when I cold start with choke, bike dies too without choke it doesn't die
This is called lean surge? Should I remove 1 washer?  By the way I bought raptor petcock from Amazon is this could be petcock issue?  Please let me know what I need to fix. Thank you everyone.