03-17-2013, 11:03 AM #1
rpm too low !!! need to help !!!!
hi guy !!!
i have setup my new rxp-x 260 ski racing parts below :
riva valve train
torx racing stage 2 camshaft
rotax racing intercooler
et-68-140 superchager kit
et water cooler cover
riva intake mainfold upgader kit
walbro 255 fuel pump
riva water box
thru hull exhaust
riva open loop cooling kit
skat-trak 3 bade impeller 14/19
riva reduction nozzle size 83mm
r&d auto trim nozzle
riva ss wear ring
r&d intake gate
r&d trim plate
riva 4 inch power filter kit
riva catch can
turbosmart fpr 800 (set static fuel pressure 58psi)
vtech 1100cc injector
vtech remap ecu rpm 9000
riva sponson kit
i setup finish ! go to test ski , rpm only 6700 , why rpm too low , i have check piston comporresor , superchager cluth slip , change to riva solas 4 bade 15/19 impeller and last change spark-plug , also same !!!! any guy can get me some advice ?????
03-17-2013, 11:06 AM #2
03-17-2013, 11:10 AM #3
03-17-2013, 11:22 AM #4
i have check everything hose and clamp , everything is good !!! any advice ???
03-17-2013, 11:24 AM #5
Usually boost leak as mentioned already, or exhaust leak, or SC slip is low, these are the most common (that and old/bad gas or spark plugs). Try riding with the seat off (if exhaust leak, it will run good with seat off), if rpms don't come up, its not exhaust leak. How does it run? Idle good and at what rpm? Does it accelerate smooth, but just hit a wall at 6700 rpm?
Is throttle blade able to open fully?
03-17-2013, 11:51 AM #6
03-17-2013, 12:18 PM #7
03-17-2013, 09:24 PM #8
Do a compression check, and post the results.
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