Can't Get 600 Or 700 Started!!! - Snowmobile Forum: Your #1 Snowmobile Forum

wmw · 12-08-2007, 03:57 PM

I have tryed every thing!

New plugs/gas,I have been at it all day still nothing!
these 2 yamahas(99&2000)were allways hard to start but I did get em started!
maybe a good tune up is in order, what do ya think?

Polaredge · 12-08-2007, 04:08 PM

try taking the carbs apart and give them a thorough cleaning and make sure the kill switch if off

**smallengineguy** · 12-08-2007, 04:09 PM

Were they just parked last spring without doing anything to prevent the fuel from going bad? If so, you're probably going to have to remove and clean the carbs.

97yamahamm700 · 12-15-2007, 03:16 AM

step 1. Take spark plugs out.
step 2. Pour SMALL amount of gas into plug holes.
step 3. insert spark plugs
step 4. pull and it should start after a good pull or few.
repeat if needed. it just gets it running for a few seconds to start getting gas running through the carbs again..instead of pulling it over a ton..unlike the older skidoos which have primers.

just a trick of the non fuel injected 2 strokes.

it worked for me about 2 weeks ago.

hope this helped.

also...a thorough cleaning of the carbs can help

lrnnorth · 12-15-2007, 06:27 AM

Did you check for spark and do a compression test?

FROSTBITTEN · 12-15-2007, 06:58 AM

This might sound alittle strange, but I always force the fuel throught the carbs by blowing in the tank. Just clean the area where the cap fits and just pucker up and blow in the tank to presurize it, forcing the fuel into and throught the carbs. do this once or twice,also MAKE SURE YOU HAVE SPARK. If you do it should start. Hope this helps.

lrnnorth · 12-15-2007, 07:11 AM

I blow in the tank all the time. Just make sure you blow and not suck. lol

raiderx65 · 12-22-2007, 07:42 PM

and use GAS not starting fluid.