927 Blaster 1 Project

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I've always wanted to build something like this. And God just "so happened" to put this '95 B1 in my lap for free. So how could I resist?
The plan is to put a GP800 in it with.... GP1400 cylinders, another friend is "coincidentally" donating.
Just today, I got a whole '00 GP800 donor ski for $550.
So now it's just a matter of having the time to dedicate to this "lil" project.

OH, btw (blaster800)- I think I forgot to mention, although I strictly stick to service & repairs (no super-mods), I've been blessed with my own company Mobile Jet Ski Services for 11 yrs now.
So that means I still need as much advice as possible from folks who have already taking this route.
Greatly Greatly appreciated,
Gil.

 
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Sorry guys, I was copying & pasting the pix, so I guess that's the reason why I was the only one that could see 'em.
So I guess I'll have to open one of those "photobucket" accounts, huh?
My apologies, will do... 1st thing in the morning.
Gotta go pig out 2nyt w/the fam.
Gil.
 
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Sorry guys, I was copying & pasting the pix, so I guess that's the reason why I was the only one that could see 'em.
So I guess I'll have to open one of those "photobucket" accounts, huh?
My apologies, will do... 1st thing in the morning.
Gotta go pig out 2nyt w/the fam.
Gil.

No account needed , hit'' post reply '' , scroll down hit ''Manage attachments'', .......follow directions ! ... wow ,this makes me feel like I feel like a I.T. guy !
 
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Location
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Pix

Thank you Blaster 800, sir.
It only let me load 10 at a time, so I guess I'll do it again, if this works.


These are pics of the initial tear down.



Nice & dirty :-(



Let the itching begin.



These are the only parts that came with the ski.
But it was FREE, so I'm not complaining.


Top's not that bad.



This is the donor victim. $550


The dissection of the 800.


Making sure there's plenty of room for the 13 gal f/t
No problem, what a relief.



The necessary cut for exhaust clearance.



I decided to mount the electrical box BEHIND the divider wall.
At just the right angle, the s/p cables reach just fine.
Now I guess I'll just have to relocate the battery (using the 800 battery tray) on the floor, in the rear compartment.
ALL the cables reach everywhere they need to reach, without ANY problem at all.




HEY THIS IS STARTING TO LOOK LIKE A REAL THREAD ISN'T IT?
:cool:
 

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It worked, finally. \
Thank you very much.






Using the GP800 short-shaft, I was able to fit engine a whole 1 1/2" further back.
Tomorrow, I should have pix of my easy solution for the relocation of the 4 motor mounts.
The stopper bar improvised on the rear of the engine, let's me know exactly how far back the engine needs to sit WITHOUT having to have the crank installed.
Sure makes taking the engine in-n-out... a whole lot easier.


These are the 2 bolts holding the electrical box in place.


This is the donated GP1200 cylinder, already PORTED, & bored out to 86mm.
Very soon to be bored out to 87mm.


Used 3/8" X 3" aluminum plate, w/shorter $20 Kawi 440/550 m/m's.
I knew it was going to be about 1/16th or so on the short side.
But that allows for shimming. If I went to high... I'm (u no what).
The front set up was a cinch because the center bolt lined right up with prior & new m/m hole.


Now the rear was a little "funner", cuz new m/m sit's right on top of mounting bolt.
So my solution was to counter-sink 1 mounting bolt on each side.
What a relief... when I went down to my local Lowes hardware store & found 8Mx1.25 countersunk bolts. Couldn't believe it.
So I installed them where I would have to still grind them flat, purposely. That way there would be as much material as possible left on the plate.
So anyways, not worried 'bout them backing out, cuz the m/m sit's flush right on top & will never allow it.
Eventhough I always use never-seize on everything.


Here I'm just showing the 4 plates. I think I spent $100 for the whole set-up.
Including m/m's. Oh, & alot of sweat, lol.


This is the REAL test.
BataBing-BataBang ;-)
btw-Kawi mounts use 10Mx1.5 bolts for their m/m's, but their too short to use w/Yami cases.
So I'm gonna need some that are a lil longer. But I already found a place online that has s/s ones for about $2/each.

Let me know what you guys think?
Boy, I sure wish I would have thought of this back in '97, when I put that 1200 in my '95 Raider that DIDN'T have the optional m/m set up pre-installed.
 

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Like to thank you all for the support & encouragement.
Just ordered all the s/s bolts & washers, I'm gonna need ($12 including shpg) from boltdepot online.
Great website & even better prices.
Think I'll take the day off today. Maybe I'll get back to it 2mrw.
Still gotta install waterbox & strap, battery tray, finish exhaust hole, & install bolts for tank straps. Etc. Etc. Etc.

Will post pix ;-)

Can anyone tell me if going with a 155mm jet pump is worth the adaption?
 
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I don't think the 155 will really benefit you, you'd be much better off with a scat pump or something along those lines from everything I've seen.

Also, any reason you are running that giant tank? It's going to add a ton of weight to the front of that ski. That's an extra 6 gallons, that's 40ish pounds of weight in the nose.
 
What exactly are you planning to do with the motor set up

800 GP core with 1200GP pistons/cylinder ?? Do you just have to exchange the pistons and the cylinders are the rods/crank cases the same ? do the cases have to be bored ?
What head will you be running ?

Electrics ?
 
Location
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What exactly are you planning to do with the motor set up

800 GP core with 1200GP pistons/cylinder ?? Do you just have to exchange the pistons and the cylinders are the rods/crank cases the same ? do the cases have to be bored ?
What head will you be running ?

Electrics ?
Hey orangefinger,
It'll be all stock 800 bottom-end with ported GP1200R cylinder's resleeved with cast iron sleeves to fit 87mm pistons. With a stock head & gasket machined to fit the bigger pistons. Stock pipe and stock carbs with individual filters & pre-filters.
What occurred to me bout the bigger pump is the fact that the bigger diameter will force the shaft to not be centered when it comes into the engine compartment. And will force the short shaft coupler to be lower. It just might be more trouble -than it's worth.
Appreciate you input.
 
Location
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I don't think the 155 will really benefit you, you'd be much better off with a scat pump or something along those lines from everything I've seen.
-Thanks for your input on the pump. But I'm definitely not putting big $ into this project. So 144 w/a Solas prop it is.

Also, any reason you are running that giant tank? It's going to add a ton of weight to the front of that ski. That's an extra 6 gallons, that's 40ish pounds of weight in the nose.
-My reason for a bigger tank is so I won't have to come in for fuel every 2 hrs. There's usually at least a 1/2 hr ride to any decent surf round here. I figured, worse case, if I only put 7 gallons, it'll still weigh the same anyway. It just gives me the option to fill it, as much as I'll need. Plus I was able to locate it much further back then where the stock tank was; bout 1/2" from the motor, so the nose could be as light as possible.
 
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