10-08-2008, 11:56 PM #1
Re: Ported engine life expectancy (All chime in)
As I'm currently putting two together, I find myself wondering what to expect from them. I'm also surprised that so many low HR top ends go up for sale as often as they do.
I'd appreciate some input from those with first hand results.
1.) How many hours do you have on your ported engine?
2.) Do you trust it? meaning would you ride it for 10-20 miles at a time etc..away from your trailer
3.) Has it ever seized? what did you do different afterward
4.) Any advice to incorporate for longevity/reliability?
10-09-2008, 05:12 AM #2
50hrs on my 1300 tripple..........
I do trust my ported ski thats cause Ben Herman built it.
and for advice..........well I don't claim to be a builder, or tuner.......so make sure the person knows whats he's doing when building a performance ski. I also check my ski after ridding,
10-09-2008, 05:47 AM #3
30 hours on a TJ ported 1300 Non PV motor.
I go on 60 mile trips with it, never worry about the motor.
Key to longevity is simple: I keep my efi controller velcroed to my lid right below the handle bars. That way I can tune it on the fly with ease. I have presets for different styles of riding. 1 - set up for racing and 2 - setup for cruising. With #1, I only hold it wide open throttle for so long and just do short spurts. With #2, I run it very rich and cruise all over the river with it. Why run her so close to the edge everytime you are out riding, thats just a recipe for disaster. So know your setting for racing and your setting for cruising. Makes the motor much happier. I can hold mine WOT for miles and miles and never a hickup.
Running rich is a good thing when cruising mainly on your 2nd pod. It helps keep the ski running a lot better between 5000 to 6000 rpms. Thats when the temps on the EFI's are the highest, just like on carbs.
Hope this helps.
10-09-2008, 08:39 AM #4
I would expect a properly ported motor to last as long as an OEM motor. I never had an issue with my older Kawi it had over 100 hours on it, my 1300 had 60 hours on it in it's first life as a 1200 and I put another 20 on it as a 1300 before sellling it. The pitfalls I have seen are motors that were ported after plating. these can have issues with the plating delaminating, a good portsmith knows how to work around this. The key to sucess is who does the porting. I can't say enough about choosing the right person to do this work, this is key in how long and how much enjoyment you will have with your ported motor.
10-11-2008, 11:56 AM #5
I have 450 hours on my '03, almost all after the jugs were ported.
(1) lean seize due to a failed RIVA controller. Completely & totally reliable. Will run all day wide open or half throttle. My advice on longevity - premix
10-12-2008, 08:53 PM #6
10-12-2008, 10:00 PM #7
107 hrs on a 1300 P/V motor TJ ported as of today All good! 176 on a TJ Non P/V today 250 on a ported 701 TJ and 20 min on a 760 ported Tj. Lee
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