What changed?

[Fast6hand]

So I took the blaster out for a little ride today. All seemed well on the start up. Warmed it up, got on it and started to give it throttle down the road. Sounded a bit lean up top, was a little hesitant. I wasn't even in the main circuit because I'm still breaking it in. Rode it for a bit. It seemed to get better up top. Brought it back home and put in neutral. Didn't see enough smoke to my liking coming from exhaust. Hmmmm...I changed nothing on the bike. It has been sitting for maybe a week. It just seemed better last time I rode it. I'm gonna be putting my cdm air box in soon. I'll leak test it again. Compression is still holding at 120psi. Running 330 main. Should I go up a jet on the main once the air box is in?

 

[Fast6hand]

Hold on. Weather has been a bit different. Hotter and humid, like it isn't enough already. Also maybe the oil separated from the fuel causing lean condition? Possibility? Running Super M.

 

[Blaaster]

If the weather was warmer it should have handled a leaner mix ok.

What pipe are you running.

You will have been on the needle circuit so the main jet would not have had any say in the mix.

Smoke is a sign of lubrication and should not be relied on as to diagnosing jetting discrepancies.

Super M should stay in suspension for more than a week, especially in the warmer weather.

What is your needle setting?

If the oil had separated from the fuel it would have caused a rich, not lean condition.

But I see your drift, oil separation, oil is heavier than fuel, sits in bottom of tank giving more oil to fuel and causing a lean mix.

 

[98blaster]

What are your mods a 330 sounds huge, perhaps its flooding up top causing hesitation, by buddy has a 3mm stroked, and ported flotek engine with fmf exhaust, no lid, 32.1, with bored stock carb an its on a 300 main, its was jetted by flotek, it runs perfect with a touch to the rich side for safety

 

[Fast6hand]

LRD pipe/silencer
Lightened flywheel
.20 over
Uni air filter
No lid
Soon to be CFM air box
Oil block off

 

[Fast6hand]

If the weather was warmer it should have handled a leaner mix ok.

What pipe are you running.

You will have been on the needle circuit so the main jet would not have had any say in the mix.

Smoke is a sign of lubrication and should not be relied on as to diagnosing jetting discrepancies.

Super M should stay in suspension for more than a week, especially in the warmer weather.

What is your needle setting?

If the oil had separated from the fuel it would have caused a rich, not lean condition.

But I see your drift, oil separation, oil is heavier than fuel, sits in bottom of tank giving more oil to fuel and causing a lean mix.

Needle is on middle setting. I just noticed the smoke. Didn't really know if it was a huge thing or not.

 

[Blaaster]

#330 should be a tad rich with your mods.

Go ahead and do that leak test, it will put the air leak mystery to rest.

 

[Fast6hand]

#330 should be a tad rich with your mods.

Go ahead and do that leak test, it will put the air leak mystery to rest.

Other words I should be ok. If leak test is good.

 

[Fast6hand]

And the #330 will be ok with the new air box?

 

[bansheedave]

And the #330 will be ok with the new air box?

yes. but check your plugs to be sure.

 

[98blaster]

LRD pipe/silencerlightened flywheel
.20 over
Uni air filteru
No lid
Soon to be CFM air box
Oil block off

My wifes has lrd pipe an trenga silencer, oil block off, no lid, lightend flywheel, k&n with outerwears, milled an chambered head, aggressive trial porting with boysen ports, an carbon reeds, an 80 over bore, its got stock carb an its at middle clip with 280main an one size down pilot an its perfect, lrd recommends the one size smaller pilot with there pipe, my air screw is about 1.75 out.
My opinion is your drowning it up top, but i dont know your elevation either, im from Western pa i cant remember what our elevation is.
The smoke should only be there when engine is cold cause its not running hot enough to cleanly burn the oil, once the engine is up to tempit makes eenough btu to cleanly burn all the oil so the smoke should go away once up to normal temp, unless your using a crappy oil or something thats not ment for a air cooled 2stroke, i was using klotz r50 an found that the engine didnt make enough btu to burn all the oil, i switched to supertecniplate an now its all good

 

[Fast6hand]

yes. but check your plugs to be sure.

That's the plan. I need to stop worrying so much about everything. I just get tense being its a fresh rebuild. A lot if time and money

My wifes has lrd pipe an trenga silencer, oil block off, no lid, lightend flywheel, k&n with outerwears, milled an chambered head, aggressive trial porting with boysen ports, an carbon reeds, an 80 over bore, its got stock carb an its at middle clip with 280main an one size down pilot an its perfect, lrd recommends the one size smaller pilot with there pipe, my air screw is about 1.75 out.
My opinion is your drowning it up top, but i dont know your elevation either, im from Western pa i cant remember what our elevation is.
The smoke should only be there when engine is cold cause its not running hot enough to cleanly burn the oil, once the engine is up to tempit makes eenough btu to cleanly burn all the oil so the smoke should go away once up to normal temp, unless your using a crappy oil or something thats not ment for a air cooled 2stroke, i was using klotz r50 an found that the engine didnt make enough btu to burn all the oil, i switched to supertecniplate an now its all good

I live in Florida so I'm at sea level. Right now I have 32.5 pilot in there. I also have stock carb. I do have boyseen pro series reeds which I forgot to mention. I know they don't change jetting. It seems fine with the stock pilot. I'm 1 1/2-3/4 turns out. Little hesitant after start up when warming it up. Bogs a little when gas is given. Not a lot of throttle. Once warm revs and idles fine.

 

[Blaaster]

My opinion is your drowning it up top, but i dont know your elevation either, im from Western pa i cant remember what our elevation is.

Pittsburgh is located in the southwestern corner of Pennsylvania, at the foothills of the Allegheny Mountains, where the Allegheny and Monongahela Rivers join to form the Ohio. The city's humid climate is modified slightly by its relative proximity to the Atlantic Seaboard and the Great Lakes. The Pittsburgh area experiences extremes of all four seasons, with temperatures ranging from zero to 90° F or so. Precipitation is distributed well throughout the year, with a good bit of the precipitation occurring as snow during the winter months. From April through October, the sun shines more than 50 percent of the time.

Area: 58.35 square miles

Elevation: 696 feet above sea level at river base; 1,223 feet above sea level at highest point

Average Annual Temperatures: January, 28.4° F; July, 73.1° F; annual average, 50.3° F

Average Annual Precipitation: 36.85 inches of rain, 43 inches of snow