The goodish color started after the rejet

Rode with the 155 main jet yesterday and it smells rich. Like I can smell that gassy exhuast smell and the top end feels a bit sluggish. The" muffler" is a radiant cycle GP shorty. Also have to replace the raptor thingy as I found out when changing the jet yesterday  when in the off position I still have about 50% fuel flow unless I pinch the gas hose or hold the float up....  this is starting to be like my powerstroke one thing after another lol

Shrulk ,I'm at a about the same elevation as you are, If your going to commute to work then mileage may become important to you. With a stock 52.5 pilot 3 #4 washers, and a 150main jet and a Dyna muffler,  I get mid to high 40's  for mileage ,some thing I don't think you'll be getting with your present setup, you might want to be checking. Your bike felt more peppy before because slightly lean fuel mixes actually make more horsepower, but risk damage to the valves from running to hot and blue your exhaust pipe. (Stores like Walmart sell products like BlueAway , that will restore your pipe back to chrome.)

You were lean ,now your not . backfire out the tail pipe is caused by running to lean and occurs when you close the throttle too fast, the" Puff" at shut off is also stronger , the mix is to lean to fire, and the motor's still spinning and pushes the raw fuel into the hot exhaust header that ignites it. The reason you smelled gas when you first put the 155 jet in was you had your restrictor in place which made it function like a 200 jet ,you had way to much fuel and not enough air to burn it all ,so raw gas was coming out the tailpipe.

I may have the pipe cerakoted if I still have my conections to the work.
The wrap does look pretty cool.

@batman... with a combined weight of 345lbs

Ha, yes that would go some way to explaining it!

@Shrulk, yes it does look splendid, and the DEI brand does not require soaking, and apparently it does not require any silicone spray as It's been on for at least six months with no deterioration at all. Also I put a laser IR thermometer right on the header as it exits the exhaust and even on a near 100F day of stop start riding it was only reading 400F

IslandRoad wrote on 03/08/18 at 23:26:49:


IR, It's a IR thermometer non contact. I aimed at what would be the hottest part of the bike that you can get to. Combustion temp is over 750ºC and it does not seem to get more than 200ºC at the hottest part of the exhaust on a hot day. I've aimed the thermometer into the engine through the oil fill plug and it's about 100C.

Let's be honest it's just about looks and I can't see that any increase in temperature results. It may even help heat to radiate away judging from some charts I was looking at recently which I can't find. But it's surprising to see that a black object gets rid of heat better than a shiny metal.

I've heard reservations about damaging the pipe but I can't see why it would unless you leave your bike in the rain. Put some on IR, you know you want to... ;¬)

I've got the heat shield off but I might get it black chromed and put it back, there's a bit of burned rubber on it. But I don't really mind that.