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Replacing the choke

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qstorm

New Member
Hi guys,
I have a 97 seadoo xp and I have an issue starting it at times. I have to keep pulling the choke and hitting the gas to get it to start either when riding or just turning it off or on.
I went to see the jetski doctor (very expensive) and it told me about a device that similar to a choke but it has lines connected directly to the carb that will make it start right away. Do you know the name of it? How hard is it to install?
I am pretty handy.

Thanks
QS
 
primer $20.00 on ebay very easy to install. If you are having to choke after engine has been runing you may have other problems than choke. like carbs. good luck Robin :cheers:
 
No primer bulb....

If your fuel system is set up to run with a choke and doesn't have a primer already installed, then you shouldn't install one.
Your problem is in your system. Either the lines are loose or you have something plugged up or restricting the fuel circuit flow.
You need to find out what your problem is rather than looking for a way around it. When you ride it and it dies and you want to re-start it, loosen your gas cap. Listen for a vacuum. Or "does it have any pressure behind it".

Trouble shoot the problem, don't look for a temporary fix.
 
Don't put a band aid on a problem that's only gonna get worse. Find the problem and repair it, rather have it get worse and leave you stranded. Check the fuel system for possible causes, as seadoosnipe recommends.
 
Can the primer be used INSTEAD OF a choke?

My new carbs had the chokes removed, and I have to use starting fluid to start it when cold. I don't like to use starting fluid except in emergency...

Starting when cold is NOT an emergency...
 
I am a noob to asking the right questions, but I think I found the problem and its user error on my part.

This is what I really wanted to say but I guess I thought it was too much to type and didnt want to bore you guys.:confused: but here goes.


The error I find on my part is that when my ski sits for a while I let a month go by without starting it, so when i go to start it I have to use the choke.
The second problem is my battery is never fully charged because i never replaced my broken trickle charger...
When I am ready to ride I use my rapid charger to charge the battery and when I go riding and shut it off, it doesnt have enought CCA to start it up.
Now I have a combination of two problems, a battery thats not fully charge and the choke not allowing gas to reach the carb fast enough, thats why I was told to use a primer.

Does that make more sense?

I got an AGM battery yesterday and change the plugs and that baby started right up without even using the choke. I will test it out this weekend and see if I still have the same problem.
I shouldn't cause I just had it serviced last year and never rode it afterwards.

Thanks for all your help. This is such a cool forum, I love to work on things myself :hurray:

and I go to start it, it doesnt fire up right away. I believe its because my trickle charger is bad and battery is not fully charged.
 
Correct me if I am wrong but I believe that a few 2 cycle engine manufactures went from choke to primer type as it gets fuel to engine faster. My engine has primer and starts very fast even after siting for months. keep in mind this will not fix a carb problem. Robin :hurray:
 
True Robin....

Your very correct Robin. The point I was making is, his system wasn't equipped with the primer to begin with, so to retro fit one now, is only putting a band-aid on a problem. There must be something causing it. Remember, when something was working well, then something changed, find the "root cause".....
 
Never Starting Fluid!!

scooper77515 said:
Can the primer be used INSTEAD OF a choke?

My new carbs had the chokes removed, and I have to use starting fluid to start it when cold. I don't like to use starting fluid except in emergency...

Starting when cold is NOT an emergency...
Click to expand...

Scott, never use starting fluid as it has no lubrication value. If you read the side of the can it will indicate that it is almost pure alcohol. It is worse than using straight gas. I remember you were worried about your engine not getting enough oil in the fuel mixture, and wanted to add more just to help in case it wasn't getting enough. You can use a primer if you can attach the hose in the correct position to feed the intake properly. With a couple of squirts it would be ready to fire up. I used a plastic bag over my carbs on my race boats instead of using a primer or a choke. They were mods and I only needed to do it first thing in the morning at the race track at like7:oo am. It's not practical to do that on a recreational doo.

Karl
 
seadoosnipe said:
Your very correct Robin. The point I was making is, his system wasn't equipped with the primer to begin with, so to retro fit one now, is only putting a band-aid on a problem. There must be something causing it. Remember, when something was working well, then something changed, find the "root cause".....
Click to expand...

So when I take out the ski this weekend and all works great. Would it be wise to install a primer so it starts quickly or should I just stick with the choke which takes about 10-15 seconds max to start..
I love that one push start if you get me.

Thanks
 
If the doo is equiped with a choke...keep it. If it still gives you trouble starting come back and we'll give you some direction to solve the problem.

Karl
 
qstorm said:
I am a noob to asking the right questions, but I think I found the problem and its user error on my part.

This is what I really wanted to say but I guess I thought it was too much to type and didnt want to bore you guys.:confused: but here goes.


The error I find on my part is that when my ski sits for a while I let a month go by without starting it, so when i go to start it I have to use the choke.
The second problem is my battery is never fully charged because i never replaced my broken trickle charger...
When I am ready to ride I use my rapid charger to charge the battery and when I go riding and shut it off, it doesnt have enought CCA to start it up.
Now I have a combination of two problems, a battery thats not fully charge and the choke not allowing gas to reach the carb fast enough, thats why I was told to use a primer.

Does that make more sense?

I got an AGM battery yesterday and change the plugs and that baby started right up without even using the choke. I will test it out this weekend and see if I still have the same problem.
I shouldn't cause I just had it serviced last year and never rode it afterwards.

Thanks for all your help. This is such a cool forum, I love to work on things myself :hurray:

and I go to start it, it doesnt fire up right away. I believe its because my trickle charger is bad and battery is not fully charged.
Click to expand...
Sounds like you may have found the problem.[battery]. You need a good strong battery to turn engine over. A few extra rpms when starting engine should cause more of a vacum I believe and rase your carb signal and alow more fuel to enter engine when starting. If you have a choke I see no need for a primer. that is only my opinion some people may differ from me. Like everyone said please come back for more help if you continue to have carb isues as carb problems can lead to premature engine failure.$$$$$$$ good luck Robin :cheers:
 
Chokes?...

If the plates used for choking your engine were removed, then you could put in the primer bulb. I'm not against using the primer buld, my issue with the 1st post was that there had to be some type of problem for that to be taking place.
I use my choke everytime I start my 787cc from cold. That is normal. Sometimes it turns over for several seconds before it hits. That too is normal.
The chokes do just what the term implies. It chokes the air to the engine to draw fuel into the throats of the intake for cold start ignition.
On newer models, chokes or TKS or other systems automatically enrichen an engine when it's cold. During the winter months, you'd need more fuel than air and when it's hotter, less fuel and more air. This is mostly due to the density of the air.
I know most of you are to young to remember, but before the automatic choke came out on cars and trucks, they had a knob on the dashboard that you pulled out to choke the engine on cold start-ups. When the engine started, you couldn't just push the knob in, it would go dead. You had to gradually push the knob in as the engine warmed. We also had heat risers, which is still used today, but in a different way. On the old air breathers, you may remember on that piece that led off the front of the breather, it had a butterfly in it that opened when the engine was warm and closed when it was cold. The air was routed off the exhaust when that butterfly was closed.
 
Nice write up seadoosnipe...gosh, I don't remember the pull out knob on any of my vehicles...your showing your age again:ack: :rofl:
 
"Liar, Liar, pants on fire"

Oh come on, I know how old you are, remember?..........:rofl:
My first car was a 1949 doge sedan. Boy, wish I had it now. It didn't even have blinkers.......
I remember my old Chevy pick-up, about a 1960 or 61 model, had it on the straight 6.........but anyway, you'll notice that application is still used in Lawnmowers (with and without primers), weed-eaters, motorcycles, boats and many other engines. I remember in the older cars with automatic chokes, you used to have squeeze the gas pedal one time before starting. That allowed the choke to operated to the closed position.
Man, your right Karl, I am showing my age..........:ack:
Nonethe less..........I was 49 this past march. So I got many years of working on so many different types of engines including steam engines, and gas turbine, that I should be qualified to be one of those high paid consultants for some company, like the government (paid with one of those pork barrel projects......LOL)
 
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:agree: Your correct on the choke thing...I would still keep the choke on the doo and repair the problem, not cover up the problem.

Pork barrel belly...doesn't that come with age too! :rofl:

Karl
 
Berfore I get this thread too far off topic...

...could someone PM me some resources (links, etc.) on how to set up the Primer? I only use the starting fluid when it is cold, and would use some other choke setup if I could.

Just want to see if I can make it work before I buy it...

I will try to sign off on this thread so I don't lead it astray...but it seems the "old guys" already have led it astray describing our symptoms of old age:agree:

Looking at some on ebay for dual Mikuni carbs, but no description on how to install
 
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seadoosnipe said:
Oh come on, I know how old you are, remember?..........:rofl:
My first car was a 1949 doge sedan. Boy, wish I had it now. It didn't even have blinkers.......
I remember my old Chevy pick-up, about a 1960 or 61 model, had it on the straight 6.........but anyway, you'll notice that application is still used in Lawnmowers (with and without primers), weed-eaters, motorcycles, boats and many other engines. I remember in the older cars with automatic chokes, you used to have squeeze the gas pedal one time before starting. That allowed the choke to operated to the closed position.
Man, your right Karl, I am showing my age..........:ack:
Nonethe less..........I was 49 this past march. So I got many years of working on so many different types of engines including steam engines, and gas turbine, that I should be qualified to be one of those high paid consultants for some company, like the government (paid with one of those pork barrel projects......LOL)
Click to expand...
Wow Louis 1949 that was a long time ago. did your car have a steam engine or was it one of those that when you started it you had to walk in front of the car and put a tool on crankshaft and spin it over by hand. just kiding lol :rofl::rofl:
 
......I'm crying!

O.K. you guys.....ya'll have me laughing so hard I'm crying........:rofl:
No Robin, I didnt' have a crank on the front of MY car, but I do remember cranking an ole model tractor like that one time...........it was hard as hell!
Scott...........you better hope Robin sets you up on that primer installation, cause you just burned me!.......oouch!
I said I was getting older.........I didn't say I walked with the dinosaur's. Although, I wouldn't mind walking with them with Rachael Welch or Ann Margaret, from one of their Dinosaur movies...........Now I know I just blew your cap!.................LOL...............:cheers:

Scott, you can go to West Bay Marine or any other marine shop you have and by the primer bulb. You'll put it inline between the fuel tank and the carb(s). On twin carb models, the fuel goes to the MAG carb first, where the pulse pump is connected. You may be able to use the standard type, like you see on an outboard engines fuel tank.
 
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Oh!!!

That sounds REALLY easy!

By the way, Ann Margret is still pretty hot today, however old she is...:cheers:
 
You guy's are getting me all CHOKED up talking about old age. Heck most of us are still in out PRIME...see I didn't hi-jack this thread...lol:rofl:

Karl
 
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