Great job once again Greg. I know cutting off all that extra hair you had increased the ski .5 mph no doubt 😉. Glad the ski didn’t sink and you guys caught the issue in time. Thanks for sharing! Billy D
When you reinstalled the valve cover, how did you secure the nylon timing chain guide/rub piece? Did you use any gasket sealer on the valve cover itself? Or just the factory gasket? Thanks, great vid Greg!
Repitching the impeller will only change engine RPM and doing so will increase or decrease the thrust from the jet pump. Changing the pump cone improves the pump efficiency to improve holeshot, acceleration, and top speed.
@GreenHulk Garage, do you have any videos explaining how to position yourself when racing your ski or attempting a top speed run? I feel like my form is off and I have to let off too soon. Thank you
Man I start washing you Channel and you’re awesome thank you for all the information did you provide I do have 2021 FX cruiser supercharger and I have 2021 GP 1800 R HO non-supercharge what do you recommend to me the non-supercharger faster I have the air filter solar 13/19 Rear exhaust Pipe I make a hole on the rear what else I can do for the GP 1800r ho Thank you keep the good work you are awesome
Switch to a solas 11/15 impeller and tune it! www.4-tecperformance.com/index.php?main_page=product_info&products_id=7815 www.4-tecperformance.com/index.php?main_page=product_info&products_id=4250
Hi, I am interested in doing the lucky cone however am concerned that I have to remove the suction part. If instead of removing the pipe of the suction you cut it so that it is flush to the jet unit wouldnt it still work? it may not be as efficient as before however it will still work I guess? @GreenHulk Garage
That will not work. If you cut it flush you run the risk of reversing the flow and dumping water into the hull. A bilge pump is a safer option than the factory high speed siphon hose anyways. A bilge pump will always pump water out where the high speed siphoning hose will only siphon water out when moving.
@@GreenHulkGarage ic ok thanks for clearing that up, and once I have that pipe not being used, I can use that through hull connection for the extra cooling of the engine as to avoid having to drill the hull for the extra pipe?
Greg, if I remember correctly the Venturi nozzle is 87mm from the factory on the GP’s. Generally speaking are you finding that the L13 performs better on them with the Venturi opened up to 90mm? I seem to recall 85-87mm being the recommended diameter a few years ago. Tempted to order a nozzle and test opening it to 90mm on my setup.
The GP is 87mm. With the lucky 13 cone I bored it enough to gain back most of the rpm lost with the cone and it picked up close to 2 mph. If I had more time and more nozzles I would try stock diameter with less pitch vs bored nozzle with same pitch to see which produced the best results.
@@GreenHulkGarage did you open up the steering nozzle as well? What were the finished diameters of both when you got done? I also recall the L13 instructions stating the steering nozzle should be 5-6mm larger than the Venturi a few years ago.
Hey bro, how are you man I have an fzr stage 3+ with 20psi riva impeller and whole stage3 and I installed the Lucky 13 and can you tell me what the color should I put to get more power and high speed thank you
I did not monitor AFR. Dean knew it had the fizzle intercooler and tuned it for the correct fueling. RIVA can also add fuel to their tunes for the FIZZLE intercooler if requested
Are Yamahas a bit more squirmy at high speed compared to other brands? I ask because from the perspective of the camera it doesn’t seem to want to stay flat. 20 years ago I didn’t feel comfortable on Yamahas for this reason and am just hoping this issue of a slight but constant fishtailing has been eliminated.
They are not squirmy at all at top speed. The camera does a terrible job at capturing wave height especially when at speed, in this video it was quite choppy causing the ski to come unhooked. On calm water Yamahas are rock solid. It doesn’t compare to other brands at high speed because other brands simply can’t keep up with Yamaha 😁
It has to be removed completely. The siphon tube is part of the bailer system to suck out water from your hull. Install an electric bilge pump and get rid of the siphon tube.
I have a 22 gp and let’s just say I have almost everything including a big 26 lb supercharger wheel, I’m on e85 , 2100cc injectors, and a lot more , my motor is 100%stock, I’m hitting 99.5 on a really hot day, this is with stock 87 nozzle , do you think with that lucky 13 cone I’ll be able to hit 100? Is the lucky 13 cone good for getting a bit more top speed ?
Yes, the cone will easily add 1-2 mph once you have it dialed in on your setup. It will also reduce cavitation on hole shot and it will improve acceleration. The fastest skis in the world are using this cone.
I just got my pump cone and installed it Aswell , I have one last question, I’m in Miami weather is really hot what washers do you recommend me to run ? I’ll really appreciate the help
Would you say they’re not? On top of each valve is a shim to place the the bucket exactly where it needs to be. If you start mixing shims and buckets then the spaces between the cam lobes and tops of the buckets will not be correct. This could close the gap entirely and not allow for the valves to properly seat or even open the gap.
I honestly couldn’t tell a difference. The main reason I go with RIVA tunes is no one else tunes on an engine dyno with egt/afr being monitored in each cylinder. This showed when I pulled the spark plugs on the deans tuned SVHO; plugs 1&4 showed it ran considerably more rich than 2&3(2&3 are known to get more air because of the intake design).
All Yamahas will cavitate. There are fixes for this depending on how bad. Lucky 13 pump cone, RIVA gen 2 intake grate, and a solas impeller will help tremendously. Ultimately, throttle control will be your friend to holeshot a yamaha
@@GreenHulkGarage yeah i am after the jetski leaving the water like the video hahaha so usually i put the trim all the way up and hold it wide open so i think the gen 22 intake and then solas impeller will do the job with a stage 1
props to the owner the motor looks in great condition , a lot better than the 21 gp ho u had on here, saw some corrosion not a good sign.
I was surprised when I lifted the seat off. It looks brand new!
Great job once again Greg. I know cutting off all that extra hair you had increased the ski .5 mph no doubt 😉. Glad the ski didn’t sink and you guys caught the issue in time. Thanks for sharing!
Billy D
I might have to join you and shave it all off, maybe I’ll get 90 out of it
@@GreenHulkGarage Hell Yeah my brother
Super cool video. 👍🏽
When you reinstalled the valve cover, how did you secure the nylon timing chain guide/rub piece? Did you use any gasket sealer on the valve cover itself? Or just the factory gasket? Thanks, great vid Greg!
Nice job done Greg!
Awesome video, great job 👏🏻 🤙🏼👌🏼
One thing I don't understand - when would you want to change the pump cone instead of repitching the impeller?
Repitching the impeller will only change engine RPM and doing so will increase or decrease the thrust from the jet pump. Changing the pump cone improves the pump efficiency to improve holeshot, acceleration, and top speed.
What do you do for intake grate reinforcement
air compressor, get outside if possible, at the least run a line outside for air intake, big diff
When you install Yamaha jet pump do you use sealer? Keep the videos going there awesome!!
Don’t use any sealant.
@GreenHulk Garage, do you have any videos explaining how to position yourself when racing your ski or attempting a top speed run? I feel like my form is off and I have to let off too soon. Thank you
I do not, but that’s a great video idea. Thanks
Man I start washing you Channel and you’re awesome thank you for all the information did you provide I do have 2021 FX cruiser supercharger and I have 2021 GP 1800 R HO non-supercharge what do you recommend to me the non-supercharger faster I have the air filter solar 13/19 Rear exhaust Pipe I make a hole on the rear what else I can do for the GP 1800r ho Thank you keep the good work you are awesome
Switch to a solas 11/15 impeller and tune it!
www.4-tecperformance.com/index.php?main_page=product_info&products_id=7815
www.4-tecperformance.com/index.php?main_page=product_info&products_id=4250
Again man thank you so much. You are the best I got everything together.
Hi, I am interested in doing the lucky cone however am concerned that I have to remove the suction part. If instead of removing the pipe of the suction you cut it so that it is flush to the jet unit wouldnt it still work? it may not be as efficient as before however it will still work I guess? @GreenHulk Garage
That will not work. If you cut it flush you run the risk of reversing the flow and dumping water into the hull. A bilge pump is a safer option than the factory high speed siphon hose anyways. A bilge pump will always pump water out where the high speed siphoning hose will only siphon water out when moving.
@@GreenHulkGarage ic ok thanks for clearing that up, and once I have that pipe not being used, I can use that through hull connection for the extra cooling of the engine as to avoid having to drill the hull for the extra pipe?
2 months no video 😭😢
Why some people say to pitch the impeller ?
Greg, have you tried the lucky pump cones on a 21 plus gpr yet ? ty
I have not, but it will get similar results.
@@GreenHulkGarage thank you
Greg, if I remember correctly the Venturi nozzle is 87mm from the factory on the GP’s. Generally speaking are you finding that the L13 performs better on them with the Venturi opened up to 90mm? I seem to recall 85-87mm being the recommended diameter a few years ago. Tempted to order a nozzle and test opening it to 90mm on my setup.
The GP is 87mm. With the lucky 13 cone I bored it enough to gain back most of the rpm lost with the cone and it picked up close to 2 mph. If I had more time and more nozzles I would try stock diameter with less pitch vs bored nozzle with same pitch to see which produced the best results.
@@GreenHulkGarage did you open up the steering nozzle as well? What were the finished diameters of both when you got done? I also recall the L13 instructions stating the steering nozzle should be 5-6mm larger than the Venturi a few years ago.
Hey bro, how are you man I have an fzr stage 3+ with 20psi riva impeller and whole stage3 and I installed the Lucky 13 and can you tell me what the color should I put to get more power and high speed thank you
Was that speed on a stock boost?
Merci beaucoup ❤❤❤❤❤❤❤❤❤❤❤
Did you get a chance to see if the dean's team tune clean up the incooler lean problem
I did not monitor AFR. Dean knew it had the fizzle intercooler and tuned it for the correct fueling. RIVA can also add fuel to their tunes for the FIZZLE intercooler if requested
@@GreenHulkGarage ok thanks I need link for the helmet too.
@@GreenHulkGarage its same with seadoo rxt 300? With riva tunes with fizzle supercooler? Running lean?
@@alihaidar4663 no it’s not that same with the Seadoo
Are Yamahas a bit more squirmy at high speed compared to other brands? I ask because from the perspective of the camera it doesn’t seem to want to stay flat. 20 years ago I didn’t feel comfortable on Yamahas for this reason and am just hoping this issue of a slight but constant fishtailing has been eliminated.
They are not squirmy at all at top speed. The camera does a terrible job at capturing wave height especially when at speed, in this video it was quite choppy causing the ski to come unhooked. On calm water Yamahas are rock solid. It doesn’t compare to other brands at high speed because other brands simply can’t keep up with Yamaha 😁
So u have to delete the siphon tube?...cant u just cut it down? Its the little metal tube in there right?..what does it do..suck water out of hull?
It has to be removed completely.
The siphon tube is part of the bailer system to suck out water from your hull. Install an electric bilge pump and get rid of the siphon tube.
@@jgaddis68 forgot to ask...how much do you charge for retainer service?
@@jgaddis68 can you maybe heat it up and bend it so that it doesnt hit the cone?
No you need to remove it. It hurts performance.
What's the mods in this ski for 89mph
This is the Riva stage 2 kit, but with the MaptunerX stage 2 9200rpm AGR tune. All available in the GreenHulk Store at discounted prices 👍
Where are you located
Morgan City, Louisiana
Does the GP1800 svho have a limited until break in hours are met
It does not
@@GreenHulkGarage mine has 3 hours on it and it won’t go over 6000 rpm and stays under 55mph any idea what would cause that
@@cameronmoody3472 boost leak! Check the hose that attaches to the throttle body. It likely came off a little bit causing a boost leak.
@@GreenHulkGarage I’ll check that I appreciate it
I have a 22 gp and let’s just say I have almost everything including a big 26 lb supercharger wheel, I’m on e85 , 2100cc injectors, and a lot more , my motor is 100%stock, I’m hitting 99.5 on a really hot day, this is with stock 87 nozzle , do you think with that lucky 13 cone I’ll be able to hit 100? Is the lucky 13 cone good for getting a bit more top speed ?
Yes, the cone will easily add 1-2 mph once you have it dialed in on your setup. It will also reduce cavitation on hole shot and it will improve acceleration. The fastest skis in the world are using this cone.
I just got my pump cone and installed it Aswell , I have one last question, I’m in Miami weather is really hot what washers do you recommend me to run ? I’ll really appreciate the help
Like usually very interesting
Are you in Florida?
Louisiana
Great contents! Got a new Sub 😃, stay safe!
Thanks!
How much did you opened the nozzle?
Not much. Maybe 1mm max. Even after boring the nozzle it’s still 200 rpm less than the stock pump cone.
I just measured it with my calipers to know exactly. I bored it .75 mm
@@GreenHulkGarage thanks!
"buckets are shimmed to match spring" 🤣
Would you say they’re not? On top of each valve is a shim to place the the bucket exactly where it needs to be. If you start mixing shims and buckets then the spaces between the cam lobes and tops of the buckets will not be correct. This could close the gap entirely and not allow for the valves to properly seat or even open the gap.
@@GreenHulkGarage clearance between valve stem and cam base circle not the spring 😀 great content though
Gp1800r or kawi ultra 310r?
Depends on what you’re doing. If you want a performance ski then the GP1800R. If you want something comfortable then you may prefer the Ultra 310
How you like dean's team tunes vz riva
I honestly couldn’t tell a difference. The main reason I go with RIVA tunes is no one else tunes on an engine dyno with egt/afr being monitored in each cylinder. This showed when I pulled the spark plugs on the deans tuned SVHO; plugs 1&4 showed it ran considerably more rich than 2&3(2&3 are known to get more air because of the intake design).
do u think gp1800r can do stuff like rxtx 300? for example this video ruclips.net/user/shortskEPUEJP-IBw
I don’t recommend that anyone does that on any watercraft…but the GP1800R is far more capable than the RXTX 300
@@GreenHulkGarage i heard that the gp1800r have holeshot issues is that true?
All Yamahas will cavitate. There are fixes for this depending on how bad. Lucky 13 pump cone, RIVA gen 2 intake grate, and a solas impeller will help tremendously. Ultimately, throttle control will be your friend to holeshot a yamaha
@@GreenHulkGarage yeah i am after the jetski leaving the water like the video hahaha so usually i put the trim all the way up and hold it wide open so i think the gen 22 intake and then solas impeller will do the job with a stage 1
Calibrate steering. 😄
at least 1000 $ Job Uh!I