93 Blaster Budget mods

[McLovin727]

Hello everyone,
I just joined the forum, and I am brand new to skis so I apologize for my lack of water toy knowledge. Now that I've said that I'll get to the good stuff. Lol

Late last summer I scored a sweet deal on a mint 93 blaster. It has a brand new reman 701 with single carb, but I had to finish assembly. Previous owner was moving out of state, and selling off toys. My more knowledgeable buddy helped me get it together, and solved many bugs that you typically find with a half assembled project. It's together now, and running pretty good minus a carb rebuild/tune up, but is SLOW!! It's obviously all stock as far as i know. It gets out of the hole really quick, but tops out fast. I've read a lot about mods, but im jus getting more confused. I'm more familiar with working on cars, and motorcycles not 2 stroke engines.

So my questions are:
What's the best way to increase speed/power?

What is the cheapest, and best options to make that happen?

Ski has a protec ride plate and I installed a large scoop intake grate since the stock easily unloads in tight turns.

All my buddies leave me in the dust with their HX, old tigersharks, and kawi standup. Soon to have a hurricane kick my butt!! Lol
I'm trying to make it faster on a budget. It's a really fun ski to ride and I enjoy it, but I don't really want to sink a Ton of money into it to go really fast. If I'm going to throw a ton of money at it I'd rather sell it to get a faster newer 4 strike stock ski.

I appreciate any knowledge and advice you guys can share!!

 

[jetx]

Your not going to get the speed your looking for on a budget...typical mods are pipe, head, prop, cdi and it will really wake it up and add a few mph on top...probably hit like 52/53 mph

If you do want a fast blaster your best bet is too find a donor ski and do an yami 1200 or kawi 1100 triple swap, but again this to me is. Not a budget conversion to do it properly.

A head, pipe and prop will probably run you about $1200 give or take what parts you buy...but it will really wake up the ski. Blasters are good at what they are designed to do but if speed is what you want than sell it and buy something else.

 

[jetx]

This is a good read

http://www.x-h2o.com/index.php?threads/maxing-out-my-701cc-blaster-update-57-4mph.143375/

 

[McLovin727]

Thanks for sharing that thread.

What speed is a stock blaster supposed to run?

I thought I read before a stock one would go about 35mph which is about what it feels like. My buddies tigershark 640 leaves me in the dust! We speed checked his at about 45mph. Honestly I was just thinking to try and get into the mid 40's, but if you're saying for a bit over 1k I should be able to get to about 50mph or a bit faster that's not horrible. That's reasonable for the performance gains. Now with those types of mods is the engine still very reliable and what grade fuel do people use?

I can brapp for hours right now, and she isn't crazy thirsty. My buddies rxp will make you go broke with fuel consumption. Lmao

 

[High Speed Industries]

If you just do bolt ons it will be pretty reliable. Most people set them up to run on premium pump gas.

Here's my girlfriends blaster build.
http://www.x-h2o.com/index.php?threads/im-just-a-dumb-girl-blaster-build.145948/

She actually built the ski, I just kinda supervised.

If you want cheap simple mods here is what I'd go for.

Advance the timing (free)
Mill stock head/ protec head ($200 or less)
Dry out exhaust (free)
Aftermarket flame arrester ($50-75)

It also wouldn't hurt to find somebody that is good at tuning. For all you know your carb isn't adjusted properly and there may be more power left in it as is.

 

[McLovin727]

I will be going through the carb in the next few weeks. I know it needs a rebuild after what my buddies have seen in their carbs, and I know it needs to be adjusted. If I held the ski at Wot for a little while it would start to foul the plugs, and lose speed. I had to back down to about 3/4 throttle, and she would speed back up. I'm not positive that my fuel wasn't a bit rich since that was the first tank ran through the brand new engine.
My buddy is good at tuning carbs so he's looking at it soon, and once the michigan weather warms up enough it's getting tethered off to be tuned in the water.

 

[High Speed Industries]

I'd suggest doing your carb asap. I sell
The rebuild parts individually. It would be about $25 to get it dialed in. It would be well worth your time.

More than likely you are going lean at WOT, not rich.

 

[McLovin727]

I'm going to try to pull the carb this weekend, but I have a few other projects on higher priority atm. I need to reassemble a 2009 R6 to put for sale asap then the ski project will get more attention. Bike season starts before ski season up here!!

Rdrttoy, i will let you know if I need any parts once I get it pulled apart. I'm sure the rubber diaphragm is shot and who knows what else I'll find. I have the manual somewhere, but as far as a stock 701 engine goes do you know what needles, and jets should be in the carb or what is the best size to run?
Last weekend my buddy pulled the carb off his HX to find out it had the wrong parts in it, but it ran ok last summer. It didn't like WOT out of the hole. lol

As far as aftermarket flame arrestors go what's a good brand or model to get? It has the stock box on it now, and I was planning to change that out.

 

[Zak]

The stock

 

[Zak]

Sorry on my phone the stock air box provides very good water protection some people like to take a couple of the screens out to make it less restrictive so you can go that route if you want before you buy an aftermarket arrestor. I run a Tau Ceti flame on my blaster and I have no complaints

 

[McLovin727]

I'm hoping to get it pulled out of the shed this week and get it fired up after being winterized. I'll be pulling the carb for a rebuild amd hopefully she runs good after that.

 

[Zak]

Nice man its amazing what a good rebuild can do. Just make sure to get genuine mikuni parts for the rebuild and tuning will be a breeze for a single sbn44. The tuning manuals are a great help too if you are interested watcon sells them for $5 https://www.watcon.com/mikuni-carb-tuning-manual?filter_name=tuning

 

[mmille_mr2]

I have a 94 blaster that woke up quite a bit with just a protec pipe. Didn't gain much on top though. If all your looking for speed your 4-stoke option is best but you sacrifice all the fun advantages of small skis (quickness, maneuverability, something that takes skill to ride). 4-storkes have a boat feel to them due to their weight and size. straight line speed is fun for a few days but gets old real quick and you'll want your blaster back. You can make it fast, but it will take more than a budget build. IMO

My neighbor bought a new supercharged sea-doo 4 stoke a few years back. After a few days all it did is sit in his garage while he rode his older 90's sea-doo because it wasn't quick enough in the turns and too heavy to jump.