yamaha1200r

[frank rizzo]

Can somebody help me, I want to know if a 1300r, cylenders can be put on a 1200r case, Also can you use a 1200r crank,, Or NOT,,, OR is better to fine a motor,, I'm trying to build a fast ski for my son,, I't ran great till the crank went,,,

Thank u
frank rizzo

 

[Mile9c1]

Yep, the 1300 is just a bigger bore and I think some had exhaust valves and some didn't, but I could be wrong.

 

[frank rizzo]

I just want to build a fast,, stock looking gp1200r
I have reeds,jetworks plate, Stinger mod, Water box, free flow exhaust, prop, intake, rideplate, Trim tabs, just want alittle more,,,

 

[the only couch rider]

sell it, buy a used rxp put 1K into it and run 70's all day....

 

[jetski9010]

can any of the cylinders fit on the 1100 motor in the waveraiders?

 

[iptamenos]

buy the factory pipe exhaust system and bore the cylinders so you will have 1300cc .also put a riva or ada head

 

[vomitspot]

crank is the same
1300r cylinders have a different bolt pattern for the head
most peeps just big bore the 1200r cylinders
you can bore the cylinders form 80mm to 87 mm
you must replate the cylinders
i have a billet protec girdled head for the 1200r motor
could fit your ski with the correct domes

 

[yamanube]

can any of the cylinders fit on the 1100 motor in the waveraiders?

no

 

[WFO Speedracer]

tick tick tick

 

[frank rizzo]

Thenks for all the help

 

[frank rizzo]

ultra 150

Has anybody put a stx12-f, or stx15f,, Into a kawai ultra 150 hull, If so how hard was it, Any specail tips i need to now,,,,

 

[Matt_E]

www.greenhulk.net is your best best for that sort of stuff.

 

[Polish jet pilot]

group k big bore kit!!