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big700r
04-06-2007, 06:48 PM
ok a buddie of min has a 660 and when he goes into reverse it sounds like its going to die on him and still backs up but not very good anyone know whats wrong
WILSONatv
04-06-2007, 11:41 PM
did you check the bike jetting?
might be the prob.
i dont know
YFZ450Ridr
04-06-2007, 11:56 PM
theres usually a very low rev limiter in reverse on quads, atleast on z400s i know for sure. if it runs fine going forward, reverse wont be any different. my guess is the rev limiter, or somthing in the CDI box. possibly a lose wire or bad ground somewhere.
Robin Hood
04-07-2007, 09:45 PM
There is a reverse limiter on the 02 raptors and up. If you give it too much gas it tends to cut out and bog down. There's a way to remove it though, so I would look into that. :D
big700r
04-08-2007, 08:09 AM
how do u remove it anyone know
Raptorman660
04-08-2007, 03:06 PM
#1 bad idea to buy a 660 in the first place. i had one and i had nothing but probelms from the starter to the card to the battery to the brakes complete garbage quad but to answer your question i used to go fast in my reverse on my raptor and i did nothing to mod it so there must be a lose wire because my raptor used to haul *** in reverse lol
big700r
04-09-2007, 08:27 AM
as hes letting the clutch out it starts soundign ****ty any help
o ya i know the 660 are **** thats why i had a 400ex and went to a 700r
katch26
04-09-2007, 08:31 AM
as previosly stated the 660s have a rev limiter on reverse with alters the spark. Its a really bad design IMO. I hated using reverse when I had my 660, you could probably replace the cdi and be done with it.
10sec89
05-12-2007, 11:13 AM
under the front drive sprocket you will find a single wire with a L shaped plastic plug on it. Pull this straight off the stud. Cut of L shaped connector and place back on stud to cover it. Take cut end of wire strip it back and install a ring terminal and ground it to the chassis. You will no longer have a reverse rev limiter. Only downside is that the reverse light won't come on anymore.
Best 5 minute free mod there is. I have included a pic showing the plug(you can see the wire is cut. Second pic shows ring terminal installed and grounded.
http://www.tamparacing.com/photopost/data/500/medium/660_reverse_cut_001.jpg
http://www.tamparacing.com/photopost/data/500/medium/660_reverse_cut_002.jpg