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.040 to .060 range 60 being a little safer. Check stuff out before you start cutting. Seems like you should have higher pressure then 150 to start with.

Mine are set at 28 psi. Are your filter baskets clean in the carbs?

West coast 550 tank. listed on eBay for 200$. But. Pm me an offer and I can bring it.

Ok so I had a few questions when I started re wiring this thing. Here is my previous thread. http://www.x-h2o.com/index.php?threads/Msd-4270-starter-relay-hook-up-%3F%3F%3F%3F%3F.154259/ I was instructed to tee into the green pickup wires and hook them into the stop/lanyard switch the black...

But wouldn't it make the light on the brain blink erratically?

Ok I just checked the fire on a different ski (one I rode yesterday) and it has consistent purple/blue spark. Now over the the raider with total loss and It seem like the spark is good but gets sporadic and some times it disappears all together.

I have this already. I am grounded from the battery to the starter mount, and then I have a 12gauge wire going from the battery to the total loss enclosure. I tested for voltage this morning at the starter relay. Because this is where I pull power to the brain. 12.6 to start then while starting...

Should the brain be grounded or completely insulated???

I just swaped the wires. No change.

Well I replaced all wires with new why rebuilding the ski. Soldered all connections and covered with watertight heat shrink. I have learned my lesson of half-azz electrical work. If the pick up was giving trundle wouldn't the light on the brain not light?

Haha yea I got hit after I first bought it. Shoulder and arm hurt for two days. I was turning the flywheel over buy hand and it rocked back and forth right over the pick up got me 3 or four times hahahaha.

Is there a firing order. I thought that both plug fired at the same time. Isn't the 4270 a single channel unit? I will try and swap them. Any thing is worth a shot at this point.

I have spark. I set the timing at 27 by the light.. It won't fire. Some times it looks like the spark is intermittent. It looks good at the bare wire end but looks week on the plug. I'm using an oem coil and have tried 3 different ones. 4 new plugs all the same. It's a msd 4270. The red light...

Thanks. Here's one of it complete.

Sounds like a plan.

75$. And it's yours. Would you want it before the free ride.

Had not planed to be but...... Let me see whats goin on. I wanna ride.

Yep I have a almost new one skat 15. Make me an offer. It's for a js not a sx.

I might have one or be able to get one for you.

Stock bore. But I can taper bore it to 85mm if needed. I just did the one I put on the raider.