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probably rich try lower popoff like 2.5N&S 80-95 gram spring 14-16lbs then reverse jet to: 120-125 low start at 2 turns 105-110 high start at 1-1/4

if your battery drain doesn't go away after disconnecting the bilge switch replace the rectifier/voltage regulator if a diode goes bad you will have a slow battery kill

drilling will work but will kill resell value i just screw in 8mmx1.25 heilcoils done

with that setup you would have to run a very large nozzle jet to keep the waterbox from overheating then you lose all upper rpms

msd tl will be needed for that setup pis on that uk crap

make sure you run lower popoff if you do that mod

make sure you have the pistons glass beaded you don't want any of that black on the piston have cylinder honed not a flex hone use rigid hone just a little to be sure of no high spots on the wall front cover mess is more than likely from the soaked bendix slinging all about

the reason seadoos came with the hs closed in later models was because of guys like us who raced the earlier models and turn them in to run leaner and fast with a homemade pipe jetting setup for water injecting we would sometimes seize it and we would put the stock water injection back on and...

put on all the bolt ons first before any porting pipe-head-carbs-intake-reeds-cdi/with better timing curves-prop/pump

xscream has a system fot the 62T cases they build with the xs900rr engines but don't think its sold outright requires special case cnc machining for them to fit it the same vf reeds they use in the xs12/xs14 engines biggest reed area i have ever seen for a 62t engine the xs900rr domintated the...

you are correct sir vumad has it wrong if the needle valve never opens fuel will never enter carb fuel cavity that feeds jets vumad is correct that: all fuel for low speed running and pilot (idle) feed all goes through low speed jet first fuel then feeds the pilot hole in throttle body adjusted...

take it apart first and make sure the ball is free and not stuck

dont use 1 line off the head to a pisser this would lose even more pressure to the valve unless you add a 2nd cooling line from tthe pump to ex manifold

i dont remember ever checking one but does have the right resistance for cdi type ignitions

most of the gp1200 non pv that I found after a seizure had bad creased fuel pump diaphrams in them this caused weak fuel pressure so always check those out on any non pv yamaha 1200 can you choke the top of the carbs wiith your hands to get it to prime fuel in the carb bores instead of relying...

looks fine other than plug the optional pisser #2 at the head pipe maybe later down the road you can add a small bypass to it to adjust the chamber tuning

eme hasnt had anything new in a long time not even competitive in the last few years stay with tpe xscream or dasa for customer sevice on engines

if you want gp engine platform, xscream got it going on them...pricey but killer performance they have won a lot of world titles not just the world finals but kings cup too

settings look fine make sure coils are grounded to the engine they act up when the eyelet ground connection goes bad

pull waterbox and see if you broke the baffle plate and causing engine to go lean