Another Reason Why I Prefer Fuel Primer over Choke

[OtherDonnieGuy]

If you guys think Primers are Voodoo, go tell the Snowmobile crowd.... Finger Throttles, Slide Carbs, are all out all of this world to them.

Primers are one of the best things you can do to make your ski more reliable.

1. If plumped correctly, you can use them to prime the entire fuel system. I've seen people tap into the fuel lines before the selectors and all kinds of crazy stuff. Tee it off right before the carb(s). This way if you switch from Reserve to ON, you can just prime the lines instead of WEARING DOWN A STARTER by cranking for more than 10 seconds... Also helps when you go to start it, and the engine is running on Primer gas. The carbs will have fuel right there at the carb, not sucking it up from the tank. Better PRIME It again!

2. If your carbs are clogged with crap, like he had in this post, the primer will bypass that and get you home maybe. You made the mistake of using a very small(for a weed whacker?) fuel filter. Get a MARINE grade fuel filter with much more capacity. They're $11 at O'Reillys.

3. Chokes are a joke. Putting your hand over the carb(s) gets hard when you have Tornado filters, but I get it you're Goro from Mortal Kombat....four arms!

Ya nobody puts primers on their sleds, unless they are running junk (or an older ski-Doo that came with a primer, but same thing as junk).

If your fuel lines are plumbed correctly, your fuel won't run back to the tank, and then you won't need that primer. Heck that primer is probably the reason the fuel is running back to the tank in the first place.

 

[Storbeck]

Ya nobody puts primers on their sleds, unless they are running junk (or an older ski-Doo that came with a primer, but same thing as junk).

If your fuel lines are plumbed correctly, your fuel won't run back to the tank, and then you won't need that primer. Heck that primer is probably the reason the fuel is running back to the tank in the first place.

Not sure what you're getting at with this. Modern sleds have efi, before that they all ran slide valve carbs that used enrichment circuits not a "choke" per say that cuts off the flow of air like what is being discussed in this thread. WAY back in late 60's early 70's sleds used diaphram carbs kinda sorta like what we use on jet skis (tillys', wallys, and mikunis very similar to the old round body BN's) and for those it is extremely common to run a primer.

Even with slide valve carbs it is not at all unusual to have a primer on a sled.

 

[bored&stroked]

I don't get why vehicles need accelerator pumps on carbs yet jetskis don't, but they sure would solve this debate real quick if they did use em.

 

[Big Kahuna]

I don't get why vehicles need accelerator pumps on carbs yet jetskis don't, but they sure would solve this debate real quick if they did use em.

Think I remember one of the issues with the acc. pumps is poor throttle response. I know most remove carb from the 1100 swaps into SXR's and Blasters and put No ACC Pump carbs.

 

[Storbeck]

Think I remember one of the issues with the acc. pumps is poor throttle response. I know most remove carb from the 1100 swaps into SXR's and Blasters and put No ACC Pump carbs.

Don't the 1100's come with CV carbs? That seems like more of a poor throttle response thing than accelerator pump....I think (?) I suspect the reason they use accelerator pumps is to allow leaner part throttle with no (or less) lean hesitation. CV carbs are for kind of the same purpose but they do it by slowing how fast you can apply throttle rather than filling in the lack of fuel. (I....think).

 

[OtherDonnieGuy]

Not sure what you're getting at with this. Modern sleds have efi, before that they all ran slide valve carbs that used enrichment circuits not a "choke" per say that cuts off the flow of air like what is being discussed in this thread. WAY back in late 60's early 70's sleds used diaphram carbs kinda sorta like what we use on jet skis (tillys', wallys, and mikunis very similar to the old round body BN's) and for those it is extremely common to run a primer.

Even with slide valve carbs it is not at all unusual to have a primer on a sled.

Depends what you call modern! Lol. (I draw the line at trailing arms). But yes enricheners worked quite well. Wouldn't have a carb sled any other way.

 

[Quinc]

i have a zxi1100 and when you pull the the throttle it squirts a little fuel into each carb. It doesn't really help with the 1100 off idle stumble issue. Also cant get rebuild parts anymore for the acc pumps is probably why people remove them.

 

[kevbo]

Hmmm, Im hearing many say primers suck because their sled doesnt have them. Are primers better because my airplane does have one? As far as standup jetskis go, primers make my starters last a long time. I knew one rider who kept his chokes and always had to do a lot more cranking.

 

[bored&stroked]

they use accelerator pumps is to allow leaner part throttle with no (or less) lean hesitation.

That does make sense.

 

[kevbo]

In 1996 they had to start cleaning up emissions. Keihin leaned their existing carbs and used accelerator pumps then went to CV carbs. Mikuni introduced their I-body style carb.

 

[bird]

Ya nobody puts primers on their sleds, unless they are running junk (or an older ski-Doo that came with a primer, but same thing as junk).

If your fuel lines are plumbed correctly, your fuel won't run back to the tank, and then you won't need that primer. Heck that primer is probably the reason the fuel is running back to the tank in the first place.

Put down the snowball, it's melting. Who said fuel is going back to the tank? Primers don't let fuel pass through them.

Hmmm, Im hearing many say primers suck because their sled doesnt have them. Are primers better because my airplane does have one? As far as standup jetskis go, primers make my starters last a long time. I knew one rider who kept his chokes and always had to do a lot more cranking.

I use my Primer maybe twice a year. The first time is in February/March. Then I pump it for fun sometimes. My 2011 SXR still has the original starter in it. Well over 1500 hours total on it.

 

[88kawi5fiddy]

SparkPlug really quadrupled down on the dumbest take I've seen on here for years.

A plugged filter is now "bad tuning"..... Like bro have you ever got some crap in your fuel tank you didnt see and your filter plugged up? Oh wait U R 2 cool 2 run filters.

I think he's been sniffing too much petroleum fumes.