how much smoke is too much smoke - Snowmobile Forum: Your #1 Snowmobile Forum

gman82001 · 12-11-2006, 07:39 PM

still to new to snowmobiles to know for sure but how much smoke should be comin out 97 skidoo summit 670 has not been run in 4-5 yrs but starts good and idels around 2000 maybe alittle under sounds good doesnt overheat just 2 stroke smoke

**smallengineguy** · 12-11-2006, 08:19 PM

Is it old fuel? It'll smoke like crazy with old fuel in it.

80JD440 · 12-11-2006, 09:06 PM

Hmm... maybe I need to get that tank off my sled then. It smokes a lot too. I just figured it was normal. Good idea!

gman82001 · 12-11-2006, 10:22 PM

by now i think ive got the old fuel out just put i 5 fresh gallons does it mean it may be running a little rich need tune up

80JD440 · 12-11-2006, 10:32 PM

Did you remove the tank and clean the bottom of it out? I am in the process of trying to do that right now. It would probably be beneficial to your sled to get all the sediment out of there. I need to fill up mine with fresh gas too, once I get the stupid tank out.

gman82001 · 12-11-2006, 10:43 PM

did not pull the tank i cant even figure out how to get the seat off to replace the bad cover (bought used) on it once i figure it out i will though good idea

TUGHILLYAMMI · 12-11-2006, 11:14 PM

I would try running high octane in it also this may cut down on the smoke. The carbs are probably all tarnished up also.

80JD440 · 12-11-2006, 11:39 PM

To remove the seat, there should be 2 bolts near the rear of the track, underneath the snow flap. Undo those 2 bolts, and the seat should come right off.

**RJ Gleason** · 12-12-2006, 12:26 AM

Once the engine gets up to operating temp. it will not smoke as much.

NorthernGuy · 12-12-2006, 10:28 AM

Quote:

Originally Posted by TUGHILLYAMMI

I would try running high octane in it also this may cut down on the smoke. The carbs are probably all tarnished up also.

High octane doesn't change smoke charasteristics. Higher octane fuel only prevents detonation in high compression high rpm situations. Waste of money to fix this problem period.

gman82001 · 12-12-2006, 05:55 PM

i really dont know if i have a problem or not i know 2 strokes smoke but just not sure how much sled idels great and every thing just not sure i figured since it sat for years no matter how well i cleaned the carbs and all it is probably just residual oil smoking i just dont want to guess wrong but it ran for 15 minutes never got over heated or anything just a litte too cautious i guess i just need snow so i can drive already thanks for the info on the seat also this forum is great

Wild child · 12-12-2006, 06:10 PM

Both my sleds smoke alot untill they warm up. Then it's not bad

mmrosshere · 12-12-2006, 06:51 PM

Just stay in the back of the pack so everyone can see the trail.

badbrad · 12-12-2006, 07:21 PM

if you haven't gone ridin' for a while you might forget how much they smoke. if you get used to a car there's a big dif.

gman82001 · 12-12-2006, 07:43 PM

never rode before but i dont think its bad enough to kill anybody so it sounds like i should be ok thanks a lot everyone

rgoers · 12-13-2006, 08:16 AM

Quote:

Originally Posted by gman82001

i really dont know if i have a problem or not i know 2 strokes smoke but just not sure how much ...

Mine usually smoke quite a bit at first start-up, especially my '80 Jag. I would STILL suggest checking to see if your oiler is returning to the rest position at idle. Sometimes they get a bit gunked up, and won't return to the idle stop.

Otherwise, enjoy the smell of that sweeeeeeet 2-stroke smoke!

skidoo kid 102 · 12-13-2006, 08:45 AM

my 1997 mxz 670 smokes alot until i start riding it around. it's normal as long as the smoke isn't black! then you might be in trouble!

gman82001 · 12-13-2006, 10:36 PM

oiler seems to be coming back to the stop and it is that pretty blue 2 stroke smoke. just running it more the last coulple of days it doesnt seem to smoke as much ideling only when i bring up the rpms it smokes alittle more i think its getting better just an over protective papa i guess took it from a 400 dollar paper weight to a $1500 dollar offer by my self and help from you guys i sure appreciate it

rgoers · 12-14-2006, 07:46 AM

Quote:

Originally Posted by gman82001

oiler seems to be coming back to the stop and it is that pretty blue 2 stroke smoke. just running it more the last coulple of days it doesnt seem to smoke as much ideling only when i bring up the rpms it smokes alittle more i think its getting better just an over protective papa i guess took it from a 400 dollar paper weight to a $1500 dollar offer by my self and help from you guys i sure appreciate it

You can put it on a stand, and get the track alignment set. Kill two birds with one stone, so to speak. That will be an excuse to run it for a while, and it will require some RPM. That should settle the smoke issue... (running it at higher RPM for a few minutes). Just watch the temp gauge. Normally, a 15 minute (or so) run will NOT bring the temp up at all.

gman82001 · 12-14-2006, 06:47 PM

Quote:

Originally Posted by rgoers

You can put it on a stand, and get the track alignment set. Kill two birds with one stone, so to speak. That will be an excuse to run it for a while, and it will require some RPM. That should settle the smoke issue... (running it at higher RPM for a few minutes). Just watch the temp gauge. Normally, a 15 minute (or so) run will NOT bring the temp up at all.

about the temp i was wondering if i should put a temp gauge
on because all it has is a dummy light if so where can i get one for a sled not sure what temp range to look at either