Thanks for the great video. And the fast shipping guys provide
@grantmerritt4781
2 ай бұрын
What does it mean if my carb wont hold any pressure on the pop off test? It just constantly drops pressure
@watercrafttalk2738
2 ай бұрын
Thanks for watching. Sounds like you have a bad / leaking needle and seat
@damnyankee5565
13 күн бұрын
Thanks ! Put your web site somewhere ! 🍀
@watercrafttalk2738
12 күн бұрын
Thanks for watching. My website is listed on our main page here, and at the beginning of every video, Watcon.com
@lucievdl
Жыл бұрын
Great video !! (info) i use 3 drops of oil on the needle seat (also work ) .............best regards from Belgium ......... Jack
@watercrafttalk2738
Жыл бұрын
Thank you for watching Jack!
@H20ONFIRE
Жыл бұрын
John, my 2 cents is that this is your best informative video yet. I felt you dove a little deeper into the topic than most of your others. I might of added , try an use only OEM Mikuni jets and springs and needle valve assy. Good job..keep it up.
@watercrafttalk2738
Жыл бұрын
Thank you for watching!!
@jameswiskus8859
2 ай бұрын
Thanks for the info. Great video
@watercrafttalk2738
2 ай бұрын
Thanks for watching
@cbh148
Жыл бұрын
Recently got that same Vessel Impacta JIS screwdriver. Can't believe it took till 2022 for me to get my first JIS screwdriver lol, though I suppose the PZ driver bits in some large tool kits is about the same as far as not camming out of the screw head like what a Phillips driver does on a JIS screw.
@watercrafttalk2738
Жыл бұрын
Thanks for watching!!
@kennethkelley217
Жыл бұрын
Give up the parts biz, just make vids. Thanks a million, amazing vid.
@watercrafttalk2738
Жыл бұрын
Thanks for watching Kenneth. We do it all here, Parts, service, builds, AND Video's!! lol
@corey_mck
Жыл бұрын
Awesome video! A few years ago when I was new to all this I had the exact question about which part the manual was calling the "body" of the carb. I wish this video existed then.
@watercrafttalk2738
Жыл бұрын
Thank you for watching!
@kidkhaos6427
11 ай бұрын
I'm going to swap out all my screws for torx drive! 😅
@jaydee1020
Жыл бұрын
This is a great video, I have my “carb”screwdriver never knew that it was metric just knew the guy that sold it to me said don’t use anything else, humbled again today
@watercrafttalk2738
Жыл бұрын
Thank you for watching.
@h2omechanic
Жыл бұрын
I've tested 4 different springs from the kits, they all range from 36psi to 55psi. How can I adjust it lower than 36psi? Can you snip a spring slightly? I was trying to get to 30psi. 97 spx 787
@watercrafttalk2738
Жыл бұрын
You can change the size of the needle and seat, to lower pop off. The Mikuni tuning manual has a chart showing pop off numbers with all combinations of needle and seats, and springs.
@jameswiskus8859
2 ай бұрын
I have my father in-laws old 1996 tiger shark montego. It ran good when I first had it and now it won't run at all I'm getting a kit with the needle and seat and the Springs to tune .The info you gave on the intake pressure's or vacuum is a big help because I know this would have been a problem.. I will be ordering a stock flame arrester and cover thanks
@watercrafttalk2738
2 ай бұрын
Thanks for watching
@JulioRivera-gb8yf
Жыл бұрын
Thank you so much! My brother sky have that problem!!! Now I can go o er the problem!!!
@ZLUVCRUCE
3 ай бұрын
A lot of words Basically numbers are not important. Just wing it 😂
@watercrafttalk2738
3 ай бұрын
Thanks for watching
@Art_Of_The_Gent_Official
Жыл бұрын
100% agreed with the screws inside the carb…just bought 2 screws for $15 😬 my screws stripped by previous owner
@watercrafttalk2738
Жыл бұрын
Thank you for watching
@cferguson6688
2 ай бұрын
Thanks, I seen "pop off " mentioned on a FB group and was totally lost. Now that is out of the way, will visit your site as I will need parts here shortly. I have a Franken Jon and most likely will have to modify the carb to get more bottom end. 61 x is what I am installing as my 62 g and other 61 bit the bullets.
@watercrafttalk2738
2 ай бұрын
thanks for watching
@cbh148
Жыл бұрын
Sounds like pop off pressure has many parallels to compression test results, where compression testers can vary some based on so many factors (altitude, length of tester rubber hose, gauge calibration, etc), meaning that one shouldn't get so hung up on the numbers, cause they're best used: A) As just a general ballpark figure (ie, are both cylinders at least kinda close) and, B) As a comparative diagnostic (ie, make notes of compression readings 1 hour after a fresh top end rebuild, then retest using the same compression tester every 10-20 hours and/or if suspecting issues). I've never messed with my stock '95 750sxi twin Keihins, but my buddy that raced 750s in the late 90s swears I need to swap a single Mikuni SBN on it. Sooner or later I'll give one a shot.
@watercrafttalk2738
Жыл бұрын
You are correct. Thank you for watching.
@johnhowell5536
22 күн бұрын
best video ever on pop off
@StephenSzigethy
Жыл бұрын
If im rebuilding the carbs and the ski was running well before, should I check what the pop off is at and make sure tobreturn it to the same psi? Thanks and great video!
@watercrafttalk2738
Жыл бұрын
You can yes.
@garycjohnson1070
Жыл бұрын
I saw your pop-off video while trying to learn how to rebuild my triple Mikuni BN 44's. Never done this before but found your video engaging and informative. My GP 1200 came with an owners manual for the Mikuni's and I will now give it special attention before I dive in on the rebuild. My GP is running sluggish and doesn't have the "hole shot" acceleration it used to, so I'm going to carburation after having pulled the motor to replace the rear oil seals and have now replaced the motor in the hull and test run it on the lake.
@watercrafttalk2738
Жыл бұрын
Thank you for watching
@rickybyrd3564
10 ай бұрын
Good video! No music to distract!!
@watercrafttalk2738
10 ай бұрын
Thank you for watching.
@whatthe2458
Жыл бұрын
Thank you John. I didn’t know about the book .
@watercrafttalk2738
Жыл бұрын
It really is a valuable tool.
@JetSkiBuyFixPlaySellChannel
Жыл бұрын
Disappointed for the price that the oem Keihin 40mm kit doesn't have orings for the high and low jets and no oring for the one behind the needle seat.
@watercrafttalk2738
Жыл бұрын
Thank you for your comment. We don't make these kits, they come from Keihin in Japan. There should be 2 o-rings for under the needle and seat above the filter.
@JetSkiBuyFixPlaySellChannel
Жыл бұрын
@@watercrafttalk2738 I used the two orings in the kit for the two orings under the filter.
@ozzielinkin
Жыл бұрын
great video ! can you please tell me where i can get jetting specs for different altitudes as i am moving a 1986 js 550 from a colorado elevation of 5000’ to florida sea level elevation? thx a bunch
@watercrafttalk2738
Жыл бұрын
Thank you for watching. We sell jetting kits on our Watcon web site. Please give me all your specs in the notes section when ordering. I need to know what ski, what engine, what carb, any and ALL mods done, what impeller, and elevation where you ride.
@ozzielinkin
Жыл бұрын
@@watercrafttalk2738 thank you will do
@scherzer25
3 ай бұрын
Soooo what’s the pop off psi asking for a friend 😉 J/k Thank you for the info
@lionsdejudah
Жыл бұрын
What good is a gauge if you recommend not relying on it.
@johnmcdonald3231
Жыл бұрын
I have a low hour bone stock 1996 WB2. I know I’m going about this backwards but when I rebuilt the carbs I failed to write down the carb numbers. I’m looking at the chart for the Mikuni SB44s and only one has a choke but it also doesn’t have extended shafts for a duals.
@watercrafttalk2738
Жыл бұрын
Sorry, I am unsure of your question? Are you looking for new carbs? Unless you order direct from Yamaha, any SBN 44 carbs you will find are just universal carbs. Please reach to me at the shop if I can help.
@TopofTheHill3D
Жыл бұрын
that "knob" that touches it, is the other way on my carb. and it works fine. im a little confused here.
@watercrafttalk2738
Жыл бұрын
Are you talking about the metering diaphragm button? Like your diaphragm is in backwards? That is not good, or correct, and you should correct it, and then tune accordingly.
@graysonleonard6150
6 ай бұрын
If the pop off pressure isn’t in sync on a twin carb will it only pull fuel from one carb? My twin carb 750 Kawasaki sts is only pulling from the front carb and not the back one I just rebuilt the carbs?
@watercrafttalk2738
6 ай бұрын
I would check for blockage. "IF" pop off it too high, your needle and seat would not open.
@Boisebus
Жыл бұрын
Need some advice. I have 3 1997 gtx seadoos. All have good compression they had sit for a couple years so I replaced fuel lines and rebuilt the twin sbn40i carbs on all using mikuni oem kits. I did not change the springs. They pop off at 24 to 26 lbs with my tester. Problem is they idle smooth and accelerate to 5000 rpm great but some lag there until they hit hard. I can interrupt the lag by cycling the throttles and off they go. Is this pop off or low speed adjustment arm height etc. Running them at 5500 foot msl.
@fortjanesville
2 ай бұрын
Did you disassemble and clean the accelerator pumps
@gloppyyman
Жыл бұрын
great video keep it up
@watercrafttalk2738
Жыл бұрын
Thank you for watching
@williammazz2476
Жыл бұрын
Decent video John
@watercrafttalk2738
Жыл бұрын
Thank you for watching
@dave4882
Жыл бұрын
My guage has a certificate from the government that says its accurate to within 0.01psi(digital). If im not paying attention to my guage, what am i looking at to determine if my popoff is set correctly?
@brizax
Жыл бұрын
The gauge and the chart - for a baseline
@watercrafttalk2738
Жыл бұрын
Thank you for watching. Read the Mikuni tuning manual.
@clemensboelen1755
Жыл бұрын
I learn a lot today. Definitely going to get the Mikuni manual Thanks John!
@watercrafttalk2738
Жыл бұрын
Thank you for watching!
@anthonylucia6500
Жыл бұрын
Great Video John and perfect timing for me. Great Content. Thanks for all of the knowledge you share and all that you do for the sport!
@watercrafttalk2738
Жыл бұрын
Thank you for watching, and the kinds words.
@patrickmuller5223
9 ай бұрын
Hi gusy, i have a problem and are serching for solution, -70cc reedvalv engien with a 24/28mm eba carb, Inthake manyfold meight be a lithe small, Proble: at WOT in LOW rpms it whill cut out when u dont let it rev up in 2-4sek (or at a hill or somthing) It wiLL NOT cut out in high enouh rpm, in very low rpm. when the engien can gain rpm fast enouh it works, It will get betther with so softer spring it will get bether but then in idle the fuel wil not vaporise and will just runn down the carb and bild a lithhle swamp
@patrickmuller5223
9 ай бұрын
Dos the spring and vale (poppoff) work only for the high jett?
Пікірлер: 72