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nzjetboating.com Forums => Tech Library => Topic started by: dattojetboy on December 29, 2012, 13:22:03 PM

Title: Datsun Jet Boat
Post by: dattojetboy on December 29, 2012, 13:22:03 PM

Hello I have a Datsun powered jet boat and I've just put it back together. Everything is running smooth no flat spots or anything . Revs fine. Just when I take it out to the lake it won't come on to a plane. Now the Carby is a bit big and haven't jetted it back yet its blowing smoke but still revs ok. Is it possible I'm over fuelling the motor or is something going on with the jet. On the trailer in the water the jet pushes the boat well and truly up the trailer and can't hold your hand behind the jet .
Any ideas my mobile no is 0408203342.  Can send video to email addresses. Or phone no on request. I'm in Australia btw

Title: Re: Datsun Jet Boat
Post by: jetdesign on December 29, 2012, 16:22:27 PM

Pic's please
I gotta see this!!!

Title: Re: Datsun Jet Boat
Post by: boon on December 29, 2012, 16:43:09 PM

Im gonna say yip, probably the carb. What is it ?

Could be the unit: grill/blade pitch/noz size or a combination of the 3. Ie the pitch could be too coarse for the HP of your engine, the grill could be not letting enough water in or the noz is too small... The list goes on...

Title: Re: Datsun Jet Boat
Post by: Tones on December 29, 2012, 19:53:11 PM

Is the motor coupled to a Taipan jet? cou

Title: Re: Datsun Jet Boat
Post by: Matthewf/Norbert/TuiDog on December 29, 2012, 20:39:39 PM

same wee boat as Mofs.
sent you an email john

Title: Re: Datsun Jet Boat
Post by: dattojetboy on December 30, 2012, 11:22:13 AM

(http://i13.photobucket.com/albums/a259/Visions162/F2A3209F-8045-4C47-88BD-51BDBE528A1B-5631-00000440503F0970.jpg)
(http://i13.photobucket.com/albums/a259/Visions162/A0BC553B-D634-4C8D-9A61-8E1541555687-5631-0000044066521733.jpg)
(http://s13.beta.photobucket.com/user/Visions162/media/3FD20AA1-81F7-4F37-823E-BF6C2E0F4462-5631-000004409B639A57.mp4.html)


And it's a weber Carby jetted to suit a 2.0L  and it's a taipan jet

Title: Re: Datsun Jet Boat
Post by: Matthewf/Norbert/TuiDog on December 30, 2012, 12:21:27 PM

see 'MOF' in his Wizard design hull same as yours here

send mof a PM

http://www.youtube.com/watch?v=62A_jYxUitU&feature=share&list=UUKrPP1Q4qSTabWBu6OUzQig (http://www.youtube.com/watch?v=62A_jYxUitU&feature=share&list=UUKrPP1Q4qSTabWBu6OUzQig)