anybody mind telling me the 95 scrambler 400 mix ratio. u see the thing is i recently went to work on my atv; right. i purchased a new battery so i said oh what the heck i minus as well replace the voltage regultor on it. right well to do so on my machine i had to drain the (2stroke) oil tank. so when i finally got it all back together i had to bleed the oil injection pump but guess what i broke the freaking bleed screw. man was i pissed so i said forget this and i am deciding to pre-mx my fuel so hence the question of what my scrambler 400 pre-mx should be some people say it is 40:1 some say 32:1 and others even say 50:1.
THANKS
RUBEN

 

Get a shorter length 6mm bolt and washer to block off the intake manifold where the injection line goes.Premix 40-1 with a good grade of injection oil. Doesn't matter on the brand.

 

sure thing OPT thanks a million now i dont have to ask about what size bolt i was going to need a 6 mm by what OPT.
THANKS
RUBEN
WILL THIS BE OKAY http://www.ebay.com/itm/J-I-S-SMALL-HEAD-METRIC-FLANGE-BOLTS-6MM-X-1-0-X-25MM-LONG-3-/221177115767?pt=LH_DefaultDomain_0&hash=item337f2ef477

 

6x1x 20-25 mm long is good enough.Just need it and the washer to screw in far enough to block off any air. Original bango bolt for using the brass fitting is pretty long.Around 1 1/4" (32 mm) longBolt-Banjo 10 [3083137] for Polaris Motorsport | eReplacement Parts

 

okay great thanks OPT
RUBEN

 

oh OPT what should a compression test yield when about 32 degrees Fahrenheit out i got about 95
THANKS
RUBEN

 

95 is low comp...and if i recall warm engines actually produce even less compression...should be north of 115-120 id say...

 

Yes 95 psi is way too low. Needs at lest 120- 125 to at least run right.Compression does drop when engine warms up as rings loose contact with cylinder walls due to expansion.Compression on a new bore/ piston should be around 140-145 psi.