Thread: 1998 Sea-Doo SPX
03-22-2006, 07:32 PM #1
- Join Date
- Mar 2006
- Ontario Canada
1998 Sea-Doo SPX
What is the easiest way to gain some more speed and I would like to make my machine sound alittle meaner. A ny suggestions
03-22-2006, 09:46 PM #2
VE Cylinder and Spec II
Really though add compression flame arrestors, 85/88 nozzle combo, 17/22 swirl prop after that you get into serious mods
03-22-2006, 10:31 PM #3
I'm going to assume it's totaly stock.
Maybe not the easiest but the cheapest gains to wake up that ski for under $10:
1. modify flame arrestor - remove the F/A element from the cage its in and take out all but the cource mesh one fine mesh piece and reinstall. (remove 5-6 fine layers)
2. rejet carbs by changing LS jet to 75 and an 80 gram spring in each. ($5-$10)
This is a MUST and not a performance mod;
3. clean the carbs, filters and replace all tempo fuel lines. I like Gates fuel line ($20) and Thomas & Betts zipties w/ the stainless insert ($13). clean the fuel selector and tank.
You will see great gains for a little change.
BONUS - for that last 1MPH run the boat with no intake grate. ($...priceless)
03-22-2006, 11:05 PM #4
Fly filters and rejet
75pilots, stock spring, 2.0 n&S
145 mains, Remove choke plates and install primer.
High speed screw ar 1/2 turn out
Low speed screws about 1 1/8th turn out
Head with 44cc domes 180 comp.
Solas XO prop and R&D 85-88 nozzles.
This will make you smile.
If still not enough you can steep it up to a Factory pipe specII
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