Hello,
Firstly I'm a PWC newbie, so please excuse my lack of knowledge, and wrong names for parts etc..
I've just pulled the carbs out of my 1999 GTX LTD to clean. Inside the throttle body there is a ring, just in front of the choke plates (you can see it in the picture I've taken)
.
What is the purpose of the ring? It's got a thread of black fibrous stuff in it. Is it just gunk I should clean out? Or is it some sort of seal that's meant to be in the grove?
Now for some history. I bought my Ski sight unseen about 4 months ago. It had just been to the shop for a $600 servicing and was meant to be a runner, but neither the previous owner nor the mechanic had water tested it. So I had it delivered, and the first time I tried it I encountered bogging/dying on WOT.
So I towed the Ski 3.5 hours back to the mechanic to sort out. I asked about the grey lines this ski had and he said they'd been done previously and although the new lines were Tempo they were fine. Anyway he pulled the carbs, replaced the needles and seats and did a few other odds and ends. I towed it home again without water testing (mistake...) only to find the problem still present. At this point I had the engine 'diesling' a couple of times on the trailer too, which scared the crap out of me (killed it with choke).
So I pulled the fuel lines and the fuel value. Sure enough the tap was clogged, and the lines connecting to the tap were pretty eroded.
Elsewhere the lines weren't too bad. I replaced the tap and the lines (except the vent lines). I also replaced the spark plugs.
I had a job getting the ski pumping gas to prime the lines. The trick was to block the air intakes on the carbs. I did this by removing the air intake completely and placing a plastic bag over the carb intakes, and cranking the engine.
After this ski ran lots better, but it still tends to die on WOT from a standing start. Hence me pulling the carbs. I was hoping to find the internal filters gunked up from running between the last cleaning and the line replacement, but they're actually pretty good.
I'm bit concerned when it's back together it's still not going to have the problem. I'm suspicious of an air leak somewhere, although I've got all my new lines on nice and tight. It's no longer diesling on the trailer, but the rev's don't drop quickly after giving the throttle a squirt.
Anyway, sorry for the long drawn out post. And lastly thanks to all the people who have contributed to these forums. I've learned a heap about these ski's from them (still have a way to go tho).
Simo
Firstly I'm a PWC newbie, so please excuse my lack of knowledge, and wrong names for parts etc..
I've just pulled the carbs out of my 1999 GTX LTD to clean. Inside the throttle body there is a ring, just in front of the choke plates (you can see it in the picture I've taken)
. What is the purpose of the ring? It's got a thread of black fibrous stuff in it. Is it just gunk I should clean out? Or is it some sort of seal that's meant to be in the grove?
Now for some history. I bought my Ski sight unseen about 4 months ago. It had just been to the shop for a $600 servicing and was meant to be a runner, but neither the previous owner nor the mechanic had water tested it. So I had it delivered, and the first time I tried it I encountered bogging/dying on WOT.
So I towed the Ski 3.5 hours back to the mechanic to sort out. I asked about the grey lines this ski had and he said they'd been done previously and although the new lines were Tempo they were fine. Anyway he pulled the carbs, replaced the needles and seats and did a few other odds and ends. I towed it home again without water testing (mistake...) only to find the problem still present. At this point I had the engine 'diesling' a couple of times on the trailer too, which scared the crap out of me (killed it with choke).
So I pulled the fuel lines and the fuel value. Sure enough the tap was clogged, and the lines connecting to the tap were pretty eroded.
Elsewhere the lines weren't too bad. I replaced the tap and the lines (except the vent lines). I also replaced the spark plugs.
I had a job getting the ski pumping gas to prime the lines. The trick was to block the air intakes on the carbs. I did this by removing the air intake completely and placing a plastic bag over the carb intakes, and cranking the engine.
After this ski ran lots better, but it still tends to die on WOT from a standing start. Hence me pulling the carbs. I was hoping to find the internal filters gunked up from running between the last cleaning and the line replacement, but they're actually pretty good.
I'm bit concerned when it's back together it's still not going to have the problem. I'm suspicious of an air leak somewhere, although I've got all my new lines on nice and tight. It's no longer diesling on the trailer, but the rev's don't drop quickly after giving the throttle a squirt.
Anyway, sorry for the long drawn out post. And lastly thanks to all the people who have contributed to these forums. I've learned a heap about these ski's from them (still have a way to go tho).
Simo
