2003 savage...
has new slip on harley exhaust # 64941-01

stock 52.5 and left the 3 metal washers on the needle.. i also left the 155  in for the main...

put new mixture screw in because it was eat up from past owner...
i cant seem to get the pop corning out of the exhaust after letting off rpm's.....  like when riding at high rpm's and start to come off the accel... and down shifting... lots and lots of pop corning...

engine is getting really hot also when riding....

i just need to see if anybody can point me to a better setup on what jets i might possibly be able to run to make things run more cool...?


the bike seems to perform very well ... has lots of power etc now but the running to hot and lean bothers me...
i cant afford to have my daily driver broke down on me..

thanks for any and all advice.. and no I'm not a mechanic  

also mix screw has been set to 3 1/2 turns out... i had it sit at 2 1/2 but it seemed to pop corn alot more event though its still doing it about as much with 3 1/2 turns...

And make notes of what you changed and what happened. Don't depend on memory.

step 1. get a jet set from lancer.
step 2. drop the bowl.
step 3. using a short wide flat screwdriver take the main jet out
step 4. see what size you have.
step 5. go up a size or at least a 150
step 6. also take out the idle mixture jet and go up to the next size.
step 7. reassemble and try it out.

It seems his bike is running/performing good.
So is this all about backfiring, or hot and lean.
Mine is air cooled also, and also runs hot.
Where is the evidence of running lean ?
All I'm wondering is why are we hacking the carb on a good
running bike ? Is it really hot and lean ? I have to be missing something.

But isnt backfiring directly related to lean mixture?

Arnold wrote on 09/09/10 at 08:35:39:

Or rich.
Or intake leak.
Or exhaust leak.
Or tuned for performance. (POPs, not BANGs)

-D. Dwarf

i could care less about the popping...
so shouldnt even of brought that up...

my main concern is running lean/hot....

and yes i know its running lean and hot...

exhaust pipes keep turning blue and the engine is running way hot...

how do i know this? because a bike should not crackle and get as hot as mine does after a short ride...

i figure my jets arent set right in the carb.... i just needed somebody to fill me in with what my setup is on the best possible advice so i could do some changes and maybe have a closer chance to getting it right first time i take carb off rather than the 7th or so on....

thanks for all the info and help.. i will be taking carb off later today sometime...

sorry what exactly is sea foam and how do i use it... and i guess my local motorcycle shop should sale it?

dont know if float is sticking could be?

i am also running a raptor petcock but try to always remember to cut it off when not riding...

havent seen any gas puddle or nothing either...
and also havent seen any extra oil level from gas seeping in...

thanks so much for all the advice....

let me see if i can do any good today... i sure hope so and dont tear nothing up

Sea Foam is a product purported by its makers to clean carburetors and fuel systems. Probably every automotive parts house, as well as Walmart, sells it for about $8.50 for a pint. They have a web site. You can find out what is actually in it by searching "seafoam msds" on your favorite search engine. I tried it, under considerable urging, and for me it did nothing. Your results may vary, and that is why I requested you report them if you use it.

If I had done nothing but changed an exhaust, and my bike started running badly, I'd replace the original exhaust and unload the other one on some other pilgrim.