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true dual cooling is 2 coming from the pump, 2 going into the manifold, 2 coming out of the head, 1 of the head one goes to a bypass pisser, and the other goes into the head pipe, then 1 out the head pipe into a T fitting, one end of the T fitting to another bypass pisser and the other to the...

so i was just working on my seadoo and noticed that the main feed like from the pump goes to the head instead of the exhaust mani. and from the classes i took in school about cars and talking to engine builders, i know that when u keep the heads cool and the domes cool u can run more timing...

i got my prop from impros, and the guy that did my port work is doc fang, he is a huge local Yamaha snowmobile drag racers, he clutches and tunes all my race sleds and we have a good friendship and i told him i wanted a all low end motor that will still be reliable, so he recommended carbon tech...

who does the best freestyle porting where u get the best low/mid hit??? with a good price tag, i have ridden a lpw and that felt pretty strong just wondering if there is anyone better out there???? or the pros and cons of the port jobs that people do??? im asking cause im kinda unhappy with...

well from my experience with the 400, 440, and 550 motors you can take the stator and advance it tell the plate wont allow you to no more and it will still start and run but it will pre detonate and fry a piston, and you can also take and retard the stator plate tell it wont let you anymore and...

sense you said the plugs are wet it is more than likely flooded, crank it over a few times and let it sit then put new plugs in her and give her some starting fluid and the throttle open a tad and it should fire if you have spark, compression, fuel, and air(make sure the butterfly in the carb...

i was always told by alot of ppl that the colder the water is the more effect it has, so shouldn't you run the water injection line off your main feed line before it is heated up by the pipe or motor??? and what was the results of doing this water injection the way you did it crab??

so i got 2 pretty good deals for pipe choice. i can get a riva freeride or a type 4. i hear people talking about how they are very similar pipes, if so what are the differences between the 2??

ya those should work u just have to cut that tab off. i have never been a fan of the after market starters, it just seems the oem ones last longer, so i get mine from my buddy that owns a pwc shop and take them off junk ski's

ok so i have a superjet with fully ported for freestyle, case porting, ada gridle head with 37cc domes, wiseco pistons, 13/15 3mm cutback solas concord, blueprinted pump, stock taper-bored 38mm carbs, ocean pro spark arrestors, msd enhancer, and maybe some other stuff. so im running a B-pipe...

there are the 2 bolts up front that got through the flywheel cover and to the starter, then there is 1 or 2, 10mm head bolts that are on the back of the starter. and if the starter is bad and u know how to use a hack saw then i would recommend getting a sea-doo starter off of the 800 motor...

from my understanding in the lectures i get from my motor builder any change of length or diameter of anything on a pipe on a 2 stroke whether it be the stinger length, header length, or length from the cylinder to the stinger will change the tuning of the pipe minorly or drastically. so the...

my pumps are separated ones under the mid shaft and the other one is between my gas tank and fly wheel cover. i guess i will just toggle the switch when i need to.

ones a rule 800 and ones a rule 500 manual/atomatic

does anybody else's bilge pump surge like when u have water in it and the water gets low were it sucks alittle air and will like surge alittle and when the hull fills up with more water it will just keep surging instead of sucking more water?? i have duals in my boat(under mid shaft and...

it sucks fuel just fine, it has great spark, and my compression test is at my shop cant get it tell monday, but with ur thumb over the hole it fells good(i know bad way to do it but it kinda works) i think my stator plate is just advanced to far and it is firing to soon. my battery is good...

im sry but if u deck a cylinder ur REMOVING material so the compression will go up and to get it back to the same compression as it was pre decking u would have to go to bigger domes or thicker base gasket.

when i first put it together my needle and seat were stuck open in the front carb so i rebuilt the carb and still not running. i took the ebox apart but didnt unplug anywires but the pink one for the temp sensor in the head(ada head dont need it) i ran the msd last year so i dont think its...

just got my motor back from the builder and put it all together and it wont run it only farted a few times and thats about it. pulled the plugs kinda wet from prime cranked it over with the plugs out it has great spark, and the air that is being pushed out is hot from the cylinders so it was...

is there a certain procedure to do to get it right??