Mercury Snowmobiles Discussion Board

im putting my sled back together and i now need to know the offset of the motor to the driven clutch so the drive belt lines up perfect.

can sombody give me the stock carb settings for the 76 250 sno twister? i need the floatbowl levels and jeting.

check the wiring for cracks breaks or weak wires from the stator to cdi. i had this problem on my 76 sno twister, it would start on first pull and run smoothly at idle, once it got to the mid range it would start to foul plugs buy dumping raw fuel out the exhaust and cause it to die. it was not a co...

i found some crappy, cracked disconnected wiring on my sled and i think its the problem with my engine running extremely rich. does anybody have a wiring diagram?

im not sure about ignition because it starts on first pull and runs smooth, yes i am in mt. clemens, are you in the area??

so how would i find out if it really is bad?

no,it runs smooth no problems except the fact it fouls out the plugs after 2 mins of running, its completly wet.......its confusing

oh hey i havent checked this in awile due to warm weather,i was wondering if bad ignition system would cause this because i havent replaced any of it excpt the coils and plugs. and i already ran it in 30 degree weather and it made no difference

i live in mt.clemens,do you have any parts or anyhting for a 76 s/t?

wel i seem to think it could be the middle crank seal,is there any silicon i can use on it to seal it to see if it will run better?and if we do a leak down test will that prove its leaking out of the middle seal?also to could it be the fuel pump because of a old or bad diaphram?i cant remember if i ...

ok we got it running no problem,heres the issue..plugs are wet with raw unburned fuel,its also coming out the exhaust ports,we have not drove just started it in our basment with drive belt off and a custom washer and dryer exhaust system!we ran it for 5 mins and raw fuel was already coming out.we al...

anybody know the oil ratio for the kohler 250 engine?

they are both the same,it was a cold compression test but i cant test now because its been sitting for a couple years and it needs to be cleaned and i should have it running by tomarrow but i seem to think its in the crank case,i have a extra case which is the original but i have to do some work to ...

ok,i have a 76 s/t 250 that baisically has a new engine.i bought mostly N.O.S parts from image enterprise.the major problem is the plugs foul out after a few seconds and raw fuel is dumping out of the exhaust.the cylinders are not losing compression,but i seem to think it needs a leak down test,this...