04-04-2008, 12:00 PM #1
New 2008 Ultra 250x modification prablom
i have New 2008 Ultra 250x
when i try it befor modificaton it don 66 mph
i made some preformance
1-RIVA Ultra 250X Performance Power Filter Kit
2-RIVA Ultra 250X Performance Ride Plate
3-RIVA Ultra 250X Top-Loader Intake Grate
4-R&D POWERSHOT ADJUSTABLE FUEL TUNER
5-R&D PUMP SHOE SEAL KIT
now when i try it only do 64.5 mph
so what is the prablom
i used to ride it on smooth water and i want it for top end speed
and i order R&D ENGINE PERFORMANCE KIT
dose that will help me for top end speed for smooth water
please help me for build modification
04-04-2008, 12:35 PM #2
The Riva intake grate will slow you down. Also, you don't need the Powershot fuel tuner on a stock motor.
04-04-2008, 12:43 PM #3
04-04-2008, 08:49 PM #4
his problem is different. He is running the powershot fuel tuner thus making it run too rich. another member did the same thing and as soon as he removed it it went back to normal. Also the intake grate scrubs some top speed.
You cant run the fuel tuner only, needs pulley too.
04-04-2008, 11:17 PM #5
The R & D Powershot can be adjusted into many different configurations, but you need a AFR Gauge to tune it, other wise you are just guessing, and run the danger of running to lean or to rich.
And the Top Loader intake grate will scrub speed in smooth water dramatically.
04-04-2008, 11:40 PM #6
First off how did you get a RIVA top loader Intake Grate??????
Also who sold you a Power Shot controller. Yank that thing off and save it for the pulley kit.
Before you go spend a bunch of your money you should read up on stuff around here or at the Project 250 site. Man it will save you alot of money and head aches.
Put the credit card and the phone down and walk away from them. Now sit here for a day or two and do a search on all your parts you think you want and find out what they do and how they work. Also see how others have done and read on their input.
Oh and welcome to the GH, The Meca of Performance Information. and parts on our fine on-line store.
04-05-2008, 11:43 AM #7
thanks every body
tody i remove R&D POWERSHOT ADJUSTABLE FUEL TUNER
and also i remove intak GRATE
tody my jet did 65.5 mph
09-08-2008, 01:47 AM #8
This is semi related to this thread, but is the 08 250x slower than the 07? My 07 has run 188.8.131.52 consistently since the 10 hour break-in. The only slight difference is 93 octane vs 91 octane.
It seems that what I've been reading is the 08 is a tad slower, but yes I do realize the speed limit mandate by USCG.
SO in my greenie best: what were the conditions when you ran stock vs running now? how much gas, wind, temp, humidy, fuel grade, tune ups, chop etc??????
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