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Originally Posted by StirCrazy
sounds like timing to me, how is it starting? and did this happen all of a sudden or has it slowly been getting worse?
Steve
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it starts wonderfully..pump twice and crank and over it goes, even when it's cold out! (I run castrol syntech 5-40w in it for winter)
i've noticed it's starting to idle a little rougher now, but could be because it's dropped 10 degrees, and I was fiddling around with the idle speed..I don't have a tach but I presume it's around 1000 to be smooth.
when you're driving it it sounds almost like you've got a rag over the top of the carb causing it to really struggle for air..sounds like it's working really hard to be smooth..it's not smooth at all accelerating from idle to probably 4000rpm + then it's too loud (don't have the engine cover on right now) to really hear how it's running. I think it does have a sticky lifter, the engine has a fast tick tick tick to it that gets faster the higher the revs..I think that's the lifters that cause the tick.
I popped off the rotor cap today, it doesn't look very new to me, the piece that spins around to each of the plugs looks ok, but the contacts it hits look a little worn.. I've asked my dad to drop off his ohmmeter so I can test the wires, and I plan on taking a look at the plugs today too..I'm sure they're due for replacement.
as for the cold intake, the engine doesn't run any better even after about an hour of driving it..it takes longer to warm up than I remember it too as well. not sure if that helps
I have a digital camera that takes movies, maybe I'll try to capture the sound of it accelerating (boy does it sound bad)..not sure if that'll help with anything.
is there anyway to "test" the accelerator pump? are they mechanical or vacuum operated?
thanks for the help!