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  Topic Review (Newest First)
01-30-2011 10:20 PM
Banshee2Raptor
Quote:
Originally Posted by willykiller View Post
You must be pretty close by now though............
Ow so close Willy....I'm shooting for April. & by re learn I mean after ya switch to a 3 pluger you haft to more or less re teach your self how to jet..... You taught me that.
01-30-2011 06:04 PM
willykiller
Quote:
Originally Posted by Banshee2Raptor View Post
Yep, when I 1st got my 660 I spent a solid day tuning ,adjusting & tweaking till I got it spot on ( with the help of Willy , QuadManiac & others on the forum)..Now when spring comes & I get my bike going I will haft to re learn my tuning proses all over again. I cant wait
You must be pretty close by now though............
01-30-2011 04:19 PM
Banshee2Raptor
Quote:
Originally Posted by willykiller View Post
The best way to learn is experiment logically..............
Yep, when I 1st got my 660 I spent a solid day tuning ,adjusting & tweaking till I got it spot on ( with the help of Willy , QuadManiac & others on the forum)..Now when spring comes & I get my bike going I will haft to re learn my tuning proses all over again. I cant wait
01-30-2011 02:24 PM
QuadManiac
Quote:
Originally Posted by Brookie View Post
Just another thing I would like to add, when i ran the quad the other day I was a little naughty and blasted straight throught the gears when the engine was cold. It ran perfectly and shot straight upto 85 mph! No lag, no backing off it opened up properly all the way through, what does this mean to me, wot do I need to adjust? I'm going to try the jets 1 up and 1 down to see the difference.
Cold engine requires more fuel, if it runs better cold, it's too rich when warm (most likely).
01-30-2011 07:56 AM
willykiller
Quote:
Originally Posted by Brookie View Post
Just another thing I would like to add, when i ran the quad the other day I was a little naughty and blasted straight throught the gears when the engine was cold. It ran perfectly and shot straight upto 85 mph! No lag, no backing off it opened up properly all the way through, what does this mean to me, wot do I need to adjust? I'm going to try the jets 1 up and 1 down to see the difference.
The best way to learn is experiment logically..............
01-30-2011 06:30 AM
Brookie Just another thing I would like to add, when i ran the quad the other day I was a little naughty and blasted straight throught the gears when the engine was cold. It ran perfectly and shot straight upto 85 mph! No lag, no backing off it opened up properly all the way through, what does this mean to me, wot do I need to adjust? I'm going to try the jets 1 up and 1 down to see the difference.
01-27-2011 08:23 PM
willykiller
Quote:
Originally Posted by Brookie View Post
7000 rpm every gear, will not go above this limit even in neutral, perhaps I was just expecting more having been used to riding superbikes, I just expected a little more top end. Bottom end is great since I got it back a few hours ago its done nothing but slide as I've hit the throttle, its a lot of fun but just feels like it wants to go more and is stopped dead at 7000. If anyone else with a 660 could let me know if there's goes passed this point that would be great.
The high rpm power falls off very quickly on these 660s, like it hits a wall...........
01-26-2011 07:51 PM
QuadManiac You took such a large jump (from 170/175 to 155/160) that you may have gone through the sweet spot... from rich to lean.

The only way to tell is to change jets again OR change operating conditions and see what happens. If you have holes in your lid, cover half of them with duct tape. If you have no lid, cover half to 3/4 of the opening with cardboard and duct tape, if you have a lid, unclip it and hold it open a 1/4 inch with some cardboard...

Then ride again and see if the 'issue' gets better or worse. This will tell you whether it was due to being too rich or too lean, and then adjust mains/needles accordingly.

When you get this close to being right on, it can sometimes be a bit of a dance to get the rest of the way (unless you methodically change jets by one size at a time until you go through and beyond the sweet spot, then move back one size).
01-26-2011 12:08 PM
Brookie Willy? QM? looking for your input here, change jets or make adjustments elsewhere? Needle position? fuel mixture screw (they are extended now and easy to alter), thanks guys.
01-25-2011 03:38 PM
Brookie On closer inspection the quad seems to get to around 6000 revs before I have power issues probably around 5000 rpm in first gear and seems to be not as bad when getting to the higher gears, should I drop down one more size to 150/155? as I'm now running 155/160 and it has improved dramatically since moving down from 170/175, cheers for your patience guys. I've been having problems with the indicators so might aswell change em again whilst the plastics are off.
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