Thread: Idle RPM for 96 SPX
09-04-2009, 10:17 AM #1
Idle RPM for 96 SPX
I just purchased a 96 SPX 720 in great shape for the wife. It has the original grey fuel lines so over the winter I'll make it my project to get her up to par for the next summer season.
In the mean time I noticed this model ski doesn't have an RPM gauge and wanted to know how I can confirm proper idle RPM in/ out of the water?
It starts up fine with no problems & idles great, haven't put her in the water yet.
I'll post some pics shortly
09-04-2009, 10:51 AM #2
- Join Date
- May 2008
- Elephant Butte New Mexico
proper idle in water should just provide a little bit of forward motion..enough to make perhaps 3-4 knts.
buy a tiny tach or other 2 cylinder tach and set out of water rpm to 2500-3000..spec is 1500 in water if my feeble memory is working today.
I went with another brand of tach that was substantially cheaper, as I didn't need the tiny tach feature set..and that tach works on 2 and 3 clyinder engines..tiny tach as a model for two and another for 3
09-04-2009, 02:25 PM #3
09-04-2009, 02:47 PM #4
Wow! shes in really good shape for an ol' girl Nice score
09-04-2009, 03:46 PM #5
- Join Date
- Aug 2009
- Beaumont, Texas
agreed, if you had the tach it should read something around 1500, i keep mine around 1,500.
09-05-2009, 10:51 AM #6
1500 is the norm,, best set by ear,, as posted the ski should just move along at idle,
HOWEVER, I would NOT be running it in the water till you replace the grey fuel lines and clean the filter/s in the carb/s
if it is as nice as you say and has the grey fuel lines you may end up with a nice ski with a toasted motor
09-05-2009, 02:01 PM #7
Rest assured, she won't be in the water till I replace those grey fuel lines, rebuild carb, change oil/ filters, change pump oil & wear ring. Also, I noticed the drain plug gasket needing replacing. So, a little TLC & shell be ready for the water. Honestly, overall she is in great shape & hope to keep it that way.
09-12-2009, 09:41 AM #8
- Join Date
- Sep 2008
what is that bag on the back end of the ski? is it just a storage bag and if so where can I get one. Storage on a ski is a valuable thing
09-12-2009, 12:48 PM #9
09-13-2009, 08:53 AM #10
I just noticed this but I think you may need to add a little hydroturf inthe foot wells
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