My cooling system seems to be circulating fine,I bled through the back bleeder,and the hose to the carbs is full,but my question: is that a bleed screw on the top of the carb heat valve ? Nothing comes out,even at pressure.
And,I set my pilot mixing screw at 1 7/8 this summer when I rebuilt the carbs,now it's actually backfiring,loud pops, when I let off the throttle.
The PO had them set at 1 1/2. My info by the engine says 1 7/8.
Everybody use 1 7/8?
Popping coming from the fogging oil ?
New plugs in after a couple of miles,no change
Thanks
And,I set my pilot mixing screw at 1 7/8 this summer when I rebuilt the carbs,now it's actually backfiring,loud pops, when I let off the throttle.
The PO had them set at 1 1/2. My info by the engine says 1 7/8.
Everybody use 1 7/8?
Popping coming from the fogging oil ?
New plugs in after a couple of miles,no change
Thanks
SinNH said:
I think it's the retaining bolt that holds the valve into the manifold. The valve has a groove cut into it where the shank of the bolt rides which allows for the valve to rotate but not pop out.
It does look like a bleed screw though.
daman
New member
It is a bleed bolt..but you need to pull out the valve some to get coolant flowing,Most use 2 turns out on the pilots 1 7/8 never seems like enough,i dont think thats what causing your BF tho,is this a stock sled?
Yep stock.daman said:
Found the problem.
The sled was running fine except when it came down to idle,it would struggle about 3000 rpm sounding like it was running on one cyl, huge backfires,man I thought the exhaust was going to blow off,and after about 15 sec it would come out of it,until I came back to idle again.
It was the TORS,I jumped it out by the carbs , and all it great!
thx all