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Thanks bro. I just rebuilt engine to a 120p and it lasted 10mins. Had lean condition grated one of rear seal blew out but I had to up jets and n/s etc, got pop off to like 28lbs. In order to change jets I gotta take motor out of hull..got a B1 so trying to cover my bases. I had a 110 pilot and...

Also do you think.the DF 62-702 external fuel pump is better than the carb internal fuel pump?

Okay got it. So you are saying that I want to drill the restrictor orfise out? What's the benefit? Is it less pressure on fuel pump which gives better fuel supply? But why add one in the return like..sounds like defeating the purpose. Thanks man!!

My 44 carbs are stock other than Pro tec tapped boring them. Do I need to drill out carb restrictors? If so where are they located? I have block off plates due to deleting internal fuel pumps.

Okay thanks!

Yes the triple. I put a 1200 jug on a 1100 and heard out pipe difference. So it's the 1200 stinger i want not the 1200 pipe? I have the entire 1100 exhaust. Thanks!!

Rocket. Just put a 1200 jug on my 1100 case..need more power. Trying to decide to go with external fuel pump or stay with pumps on carbs.

I've been told that the 1100 stinger performs best with a 1200 pipe..My question, will they bolt/clamp up and is this true? Thanks

Thanks!

Is that why the 1200 exhaust manifold gasket has the front 2 cylinders cooling water restricted allowing most of the cooling water to enter into the rear cylinder? I added dual cooling lines with a water outlet on head above the center cylinder.

Anyone know the max compression on a GP1200 for 93 pump gas..I was told 160 max. Thanks!

Yeah I hear yeah. Wish there was a way to test the fuel pump, engine tore apart.

Brandon from Havasu PWC told me that a external fuel pump won't work on the 1200. Said it sends the wrong signal, my thoughts were it was due to having just one pulse line and not 3, one for each carb to keep each carb pressurized to its matched cylinder. These external fuel pumps are new to me.

Yes I agree. Torrent makes them for 2 cylinders, I told Brain he should make them for 3 cylinders that most B1s are triples now

Yes but making up all the block off covers are gonna be a pain. I don't know anyone that sells them for a triple

I'm lost on the restrictors, I have mikuni 44 BN which are taper bored. I didn't drill and restrictors out of carbs nor do I have any restrictors in my return line. I have a external fuel pump with each having it's own fuel line from the mikuni DF62 fuel pump. I would have to way to monitor...

Oh im good at tuning carbs that's what saved me from destroying my engine. When I had carbs on the 1100 that engine lasted over 8 years till I decided to go with a 1200 head. I'm more worried if the external fuel pump is sending wrong signal to carbs.

No I never drilled them out so I should be good. I was running 110 pilot jet 135 main, 2.0 n/S , 95 gram spring with 25lbs pop off. I think I had a case leak causing the lean condition .