09-15-2007, 08:37 AM #1
Dump water overboard back cylinder
Having stock head milled on 03 1300R. Ive seen people dumping the water overboard from the rear line and plugging off the exhaust where it used to be. Is this OK to do? I will NOT be running a jetworks mod. Or should I leave the stock water routing? I also will be using an 05-07 head gasket.
09-17-2007, 05:05 AM #2
That is the way I do it except that I do run the jetworks mod. You should run the jetworks it's a great mod for the hole shot on the GPR or as far as I can tell any Yamaha.
09-17-2007, 06:47 AM #3
09-17-2007, 07:01 AM #4
I will try to get a picture and post it later today.
09-17-2007, 10:33 AM #5
- Join Date
- Sep 2006
- West Palm Beach, FLORIDA
All you're doing is changing the location of the water exit from below the water line to above; "injected" is right, the jetworks mod will help dry out the waterbox at low rmp's and enhance your holeshot, just like more compression will.
09-17-2007, 11:34 AM #6
If thats the case then I can just leave the water routing the way it was using the stock head milled. I thought dumping the line overboard would help in keeping it run a little cooler. (discharging hot water from cylinder sooner)
09-17-2007, 10:12 PM #7
09-18-2007, 04:40 AM #8
Sorry I didn't get a chance to take a picture last night. Hopefully I can get it this evening.
09-18-2007, 06:21 AM #9
09-18-2007, 02:55 PM #10
- Join Date
- Feb 2007
- Cape Town, South Africa
anyone done this on a stock 1300r motor (2003) ?
Im keep to do it, as im busy with my rebuild and jetworks pro.
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By MNAPR in forum Yamaha How To & FAQsReplies: 23Last Post: 08-18-2012, 07:49 PM
By MJE in forum Yamaha PWC Performance (2-stroke)Replies: 7Last Post: 07-09-2009, 02:54 PM
By yami_rida#26 in forum Yamaha PWC Performance (2-stroke)Replies: 11Last Post: 11-07-2008, 11:20 PM
By PilotSmith in forum Sea Doo Sport BoatsReplies: 12Last Post: 02-25-2008, 04:14 PM
By mrbtd in forum Yamaha PWC Performance (2-stroke)Replies: 1Last Post: 09-07-2007, 08:15 AM