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Dude, that blowup doesn't look like detonation. new engine and slighty lean maybe, you butted the rings, then blew out the top of the ring land, needed to file ring gaps a little looser when assembled

has team neptune decal, could have some go fast goodies in it

I have both. email me at supertune1@tampabay.rr.com

pistons not the same as dasa

nobody saw this coming it was run with the piston in backwords you can see the sharp edges the ring end cut port is aggressive but not the only reason

wow 28 posts and not one mention of type of ignition/curve pipe used carb setup pump/pitch/nozzle/hull then asking for advice?

correct again

correct seadoo 800 race dry pipe makes good high rpm power but seadoo starters dont like it and fail a lot

2 wires in each 2 rear holes tricky is right just use some black silicone around holes in the grommet

wow really nice love the color cant wait to hear ride report!

1st ? yes you turn on the #4 switch for led timing on to time with the led-dont forget to to it back to off when done for run mode 2nd ? no no need to mess with any other switches to set static timing-brain not in function mode when led is switched on

i like externals to remove pump from vibration of the engine on stroker setups

the gp1200 has inherent fuel pump internal round disk valves that go bad and cause weak fuel pump pressure problems and blowup as shown dont know the cause but they all do it replace them annually gp 1200 have 3 stock sbn pumps on them before on the 1100 used external pumps and didn't have this...

worn shell wrong squish angle sleeves dropped head studs and not torqued correctly use sealer instead of grease

run forest run

jump on these great prices i have this one... oldie but really good professional tool its a little long snap on makes shorter a one but really pricey http://www.ebay.com/itm/Proto-6006-2-3-8-Drive-Ratchet-Torque-Wrench-/262046832201 Another one...

you can use the 62t headgasket for both models of 701 castings but only can use the 701 61x gasket on a 61x head only 701 61x casting heads are early model head see the cooling holes here on the 61x gasket http://www.ebay.com/itm/like/141734568644?ul_noapp=true&chn=ps&lpid=82 and late model...

i think dynos can give some useful info in developing a engine setup ultimately on water performance tuning is the way to go look at xscream engines winning almost every flatwater competition around the world and owning the podium in the top 3 most of the time

salt water riding .032 fresh water riding .042

40 lbs on 10mm cylinder bolts 20 lbs on the 8mm head bolts no need for locktite use case sealer instead like 3 bond 1211 permatex moto seal-gray yamabond 4 ultra black gasket maker silicone follow arts advice on cooling line jetting and pipe setups or take to a professional