Thread: Riva Pro OPAS B/O's~Worth it ??
10-12-2008, 07:26 AM #1
Riva Pro OPAS B/O's~Worth it ??
2006 RXP with essentially a 'Phase 1' kit + Riva Rear Exhaust system.
I am experiencing extreme porpoising, almost a hard "bucking" action at approx. 70~71+mph.
Feels like the Intake Grate is momentarily loosing its bite and planing under the scoop, then regaining the 'bite' and slamming the Hull down (repetitive/oscillating).
This is a really unnerving feeling, almost out of control at higher speeds.
Have already tried shimming the RPlate rear bolts down over 3mm w/o any change (scrubs 1/2mph) and tried removing the Pump Wedge w/o any noticeable change.
Has anyone tried the RIVA Pro OPAS Blocks to cure this "Porpoising" problem ? I had read somewhere they essentially extend the lateral planing surfaces enough to cure the problem but would like to get more info. from owners before I spend the cash on these.
Also considering sending the RPlate to Jim, or both.......
All comments and suggestions are appreciated.
10-12-2008, 07:32 AM #2
12-05-2008, 08:04 PM #3
Anyone else ever experience this "bucking" problem ?
What did you do to fix it ?
12-05-2008, 08:19 PM #4
If you are talking about the porpoising problem I can tell you that the RE's help greatly with this condition.
12-05-2008, 08:37 PM #5
The re's free up the ski makes it ride like a normal old 2 stroke. They do help with high speed porpising issues. what conditions is this happing in chop and how high is trim. or does it make any difference ? Dave i do know you maken fly (SKIS) and can ride like ya stole it.
12-05-2008, 08:47 PM #6
12-05-2008, 09:11 PM #7
12-05-2008, 10:10 PM #8
Dave the NOPAS will cause this I think it is better to leave opas on than nothing. The RE's stopped mine from porpsing at speed.
12-06-2008, 08:52 AM #9
I was thinking the same thing, will probably get the RE's along with Jim's RPlate majic.
That should smooth things out, 'ya think ?
12-06-2008, 08:57 AM #10
- Join Date
- Jun 2007
i have a set of riva pro bo's for sale
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