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Im having a problem with the insulator on my spark plugs breaking and the compression coming through them. I havent changed any setting and even tried solid stud spark plugs. Will run fine for about 30 min. Any ideas?

I've only had this head 4 seasons.

Is ADA the only way? anything better?

i have checked the for warping, if the sleeves dropped wouldn't it be noticeable? I have never seen one drop before but i have heard of it. It has blown in the same spot. I didn't notice any chattering of the domes, but i will look again. Also, how necessary is it to completely change out...

I'm having an o ring issue, i just blew my second compression oring on an ADA head in only 2 Hrs. Im debating a faulty install, but then again my cylinder sleeve is flush all the way around except for a 1-1/2" circumference spot that is actually raised almost the thickness of a piece of computer...

I'm having an o ring issue as well i just blew my second compression oring on an ADA head in only 2 Hrs. Im debating a faulty install, but then again my cylinder sleeve is flush all the way around except for a 1-1/2" spot it is actually raised almost the thickness of a piece of computer paper...

You called it half the oring was gone in one cylinder. Could be why i also could never seem to tune this ski properly. Got the oring kit, can't wait to see the power this thing really is supposed to have. The corrosion magnet inbetween cylinders cracked and fell inside the cooling ports too. How...

Where does the water go then?

Just blows my mind that it can get through all the fittings but not get through the cylinders.

Went out with some buddies the other day and blocked up my cooling sytem. I Pulled it on the floating dock, took stinger and head pipe off of factory B, checked all fittings and hoses, including pump pressure into the hull and all is good. What's next? i have An ADA head with a factory B pipe...

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Need advice. My top end is fine, but my bottom end lags hard. Here is what i am working with: 701 bored to 710cc 61x , Ada head 180 psi domes pump gas, msd enhancer, lightweight flywheel, vforce 3 reeds, factory b pipe, blowsion flame arrestors, dual cooling, and dual 38s. What should my jet...

Charging system is fine. What's the battery of choice then? im currently just running factory yamaha gel sealed battery. I've tried the odyssey, waste of money in my opinion. I ride all over, chippewa lake, edgewater during the good winds, sandusky bay, marblehead. I'll be out at edgewater...

Broken reeds usually run good on the stand but in the water under a load it falls on it's face. But that usually happens when it's flooded.

Hey i know that guy!!!!!!!!!!!!!!!!!!!!!!!!!

What he said ^. I think i did 2 coats on each. Wait untill it tacks up nice and stick it. Haven't had a problem in 3 years. dap red can that is!

I've had it with these dual pumps killing my battery. In Cleveland the waves are not spaced out enough to pump out. What are the best one way valves? Do the valves pull more volume than dual 500s?

Awesome how much?

Snapped a 650 square nose handlepole 2 days ago, whos got one laying around and wants to sell?

Hahaha that's what i thought too Supercharge Yamahammer