'new' 2002 DS650 BAJA, opinions on work already done
#1
'new' 2002 DS650 BAJA, opinions on work already done
Just picked this thing up last night.
Its a 2002 Baja, in decent/good shape.
The previous owner is a mechanic, and obviously knew his stuff well.
Last season the top end was rebuilt with a 720cc bore/piston, web cams, mild head porting, 1mm over-sized valves, and has a big carb and full exhaust to match.
He said it has been dyno tuned and produced 58HP. He also said that in his experiences, this particular dyno is not very optimistic, and other dynos such as the Trinity dyno (a bit optimistic) it might have produced 62 or 63 HP.
This thing feels strong. Real strong. (I've had a Banshee, Zilla, one 660 raptor, one 680cc raptor with a Hot cam, a 250R, etc)
I am just wondering how this big guy will do up the hills in the sand against your run of the mill 450s and Raptors/Banshees.
I am 180 lbs. The previous owner is a larger guy, 305 lbs, and said with the mods, he would hang side by side with the 450's and Raptors up the dunes.
Thanks for any input. This seems like a well built, SOLID bike.
Its a 2002 Baja, in decent/good shape.
The previous owner is a mechanic, and obviously knew his stuff well.
Last season the top end was rebuilt with a 720cc bore/piston, web cams, mild head porting, 1mm over-sized valves, and has a big carb and full exhaust to match.
He said it has been dyno tuned and produced 58HP. He also said that in his experiences, this particular dyno is not very optimistic, and other dynos such as the Trinity dyno (a bit optimistic) it might have produced 62 or 63 HP.
This thing feels strong. Real strong. (I've had a Banshee, Zilla, one 660 raptor, one 680cc raptor with a Hot cam, a 250R, etc)
I am just wondering how this big guy will do up the hills in the sand against your run of the mill 450s and Raptors/Banshees.
I am 180 lbs. The previous owner is a larger guy, 305 lbs, and said with the mods, he would hang side by side with the 450's and Raptors up the dunes.
Thanks for any input. This seems like a well built, SOLID bike.
#3
#4
Thanks Cobra, but i'm not really interested in hearing bad 'stories', but more interested in technical details of what goes wrong and why its so unreliable.
What physically fails with the 720 sleeve and piston.
I also cannot afford the 1500 dollar cylinder kit after purchasing the bike itself.
If anyone has any technical info or PERSONAL experience with a 720CC big bore DS motor failing, I'd greatly appreciate that info or insight on what happened.
Thanks very much.
ps. I'm a longtime atvconnection user (check join date..) and i'm glad to be back.
What physically fails with the 720 sleeve and piston.
I also cannot afford the 1500 dollar cylinder kit after purchasing the bike itself.
If anyone has any technical info or PERSONAL experience with a 720CC big bore DS motor failing, I'd greatly appreciate that info or insight on what happened.
Thanks very much.
ps. I'm a longtime atvconnection user (check join date..) and i'm glad to be back.
#5
#7
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
bzdok1234
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
30
02-23-2016 01:55 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)