SWAFIA

ok i got two jet skis for free a xl 1200 and a xl 800 the 1200 the motors was blow so im useing it ass parts

first issue is the dash computer on the 800 didnt work so i but the 1200s dash computer in the 800 all plugs match exspect one so i matched the pin number to the old one to the new on and the 800 started so now it runs but its sounds like its misfireing or somthing my question is does the dash computer have anything to do with the spark....


second issue is after i run it today at about 45mph it would shake till u let off the fuel then give it fuel it would do it again so i ran it for a bit and it would go away for a little while the it would come back so the question is is it cavitaion \

when i washed it a found a pease of something thst lookind like a houreshoe and it thin is it a shim lol

any info would help

tiagobaracho

Hi .. .the dash computer does not have anything to do with you misfire..
In this case you need to have a good idea about the overall situation of the engine..
you need a compression test, clean up the carbs.... check/change the spark plugs... then you try again and see what happens... there are a lot of variables that can do that in those cases of parked away jet skis for a long time....First step compression test, second clean the carbs and test/change the spark plugs... then if problem still the same, think about spark coil....
The shake probably is very bad bearing/ turbine blade bent / turbine drive shaft bent...
there are a lot to check.. there is no " one answer" for those kind of skis..

SWAFIA

ok i have cleaned the carbs and done a compression test with both being 125 psi and before i wwnt out so now im going to rebuild the carbs and buy new spark plugs and get dock fuel and see what happens thanks for the info but i found this on the floor in the motor bay can u tell what it is for

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tiagobaracho

this is the spacer... you use it underneath the engine mount to align perfectly the coupler with the driveshaft.

SWAFIA

so could this be my shaking problem if so is this going to be a b!@@h to repair plus im headed to the parts house to get a carb rebuild kit and some spark plugs is there anything elts that i might need whilke im there

thanks for everything tiagobaracho you have taken a load off my mind

tiagobaracho

this problably is not causing the shake problem...

SWAFIA

thanks ill grease that baering that holds the shaft and get this motor running right and go from there thanks for all the help and i hope i can help you one day

tiagobaracho

ahhaha... dont worry... first you could try releasing all for screws form the mount... and slide de engine forward to loose the connection with the drive shaft.... then you could spin the drive shaft using a drill attached to a round rubber piece and touching on the drive shaft... and you will see if will shake.. if it shakes you can now see where is shaking... your drive shaft can be bent.... the turbine itself me be broke and unbalanced....... investigate and you will find.... you need not only grease the bearing.. if the bearing is cousin , its completely bad and need to change... its cheap... and need to change the seals too..

SWAFIA

Thanks I'll give that a try I'll work in it this week end and post what happens lmao hope ur around if it don't work