It is much easier to uninstall/reinstall exhaust with the engine out (may not even be possible with it installed). You will need to unhook your fuel lines, exhaust tubing, throttle (and choke) cable, remove your electrical box from its mounts and set it on top of the engine then remove the four...
I just sold my ski with mine in it, the port height was the same as a 62T cylinder on mine and it had the auxiliary exhaust ports. I ran mine at 82mm with 35cc domes and a couple degrees of ignition advance and it ran very well, I was really happy with it. I am not sure that ProTec sells the...
I thought this too but how they made the vertical cuts had me scratching my head...almost seems like they did it with the sleeves out. There was a decent amount of time spent on the transfers, and removing the sleeve for that matter, why chop the exhaust port like that?
Some nice work there...
http://www.ebay.com/itm/Yamaha-61x-Ported-Cylinder-superjet-Waveblaster-waverunner-701-cylinder-/111848451476?hash=item1a0aafed94:g:xZUAAOSwbdpWbHd0&vxp=mtr
Used 61x 701 ported cylinder. Needs bore. One sleeve has some weird chunks out of it. (See pics) was removed...
Mcmaster has a couple styles in grey.
http://www.mcmaster.com/#cable-ties/=1098w1k
You can also get these and use colored cable ties.
http://www.mcmaster.com/#cable-ties/=1098wky
While beer is a good solution for problems requiring brute force or crude manual labor, it is generally not recommended for problems requiring some forethought and problem solving and can result in busted parts.
A wetbike has a very similar engine setup, outboard style powerhead with jet pump, I think the old Sea Ray jetboats had Merc outboard powerheads as well.
An outboard......
@CHRIS@EZ-SKI you want to add a cool feature to your hitch haulers? Weld a spline tool inside the inner end of of the receiver portion and a ring to support the driveshaft into the outer end.
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