13-tooth you need to do this mod!!
#1
05-05-2006, 07:28 PM
Guest
Posts: n/a
13-tooth you need to do this mod!!
I finally got the oem one off and the new one on. The trick to getting the oem one off is to put your socket on the nut and give it a quick jerk and it will break right free. Of course you need someone heavy sitting on the bike in gear with the back brake on hard.
Anyways, the new power is immediately felt. It is amazing what it did for the bike. The power comes on quicker and you can actually feel it come on, kind of like a mini powerband like I'm use to. Whereas before there was no power surge, just a smooth nothing that wasn't any fun. Granted I weigh in at 150 and 5'7 I'm probably feeling more than some of you but it still helped out. The sprocket puts out no noise and was a perfect fit. I bought from dennis kirk, the XR650L sprocket is the one you need, it comes with shoulders so no spacers required. The only thing I noticed is of course you have to tighten up your chain since you lost a tooth.
Now I can't wait to get some sort of exhaust and rejet the carb and add the KX 500 intake.
One question, why do you drill out the slide hole? What's this do? thanks, Travis
Anyways, the new power is immediately felt. It is amazing what it did for the bike. The power comes on quicker and you can actually feel it come on, kind of like a mini powerband like I'm use to. Whereas before there was no power surge, just a smooth nothing that wasn't any fun. Granted I weigh in at 150 and 5'7 I'm probably feeling more than some of you but it still helped out. The sprocket puts out no noise and was a perfect fit. I bought from dennis kirk, the XR650L sprocket is the one you need, it comes with shoulders so no spacers required. The only thing I noticed is of course you have to tighten up your chain since you lost a tooth.
Now I can't wait to get some sort of exhaust and rejet the carb and add the KX 500 intake.
One question, why do you drill out the slide hole? What's this do? thanks, Travis
#2
05-05-2006, 08:00 PM
Senior Member
Join Date: Dec 2005
Location: Just South of the Ocala Nationa Forest
Posts: 1,262
RE: 13-tooth you need to do this mod!!
Travis,
The hole you refer to is the way vacuum is presented to the area above the diaphram in the Keihin CVK40 carb. Opening up the hole that the air passes through will let the slide react more quickly to the throttle opening. A CV carb such as we have, actually does not open a butterfly valve as we are used to. Opening the throttle "allows" the slide to move up, which is how the fuel mix is presented tot he intake of the engine. Gettting that slide to move a bit quicker is one of the things you want to do.
Hope that explains it.
The hole you refer to is the way vacuum is presented to the area above the diaphram in the Keihin CVK40 carb. Opening up the hole that the air passes through will let the slide react more quickly to the throttle opening. A CV carb such as we have, actually does not open a butterfly valve as we are used to. Opening the throttle "allows" the slide to move up, which is how the fuel mix is presented tot he intake of the engine. Gettting that slide to move a bit quicker is one of the things you want to do.
Hope that explains it.
#4
05-06-2006, 01:39 AM
RE: 13-tooth you need to do this mod!!
ACCORDING TO THE INVENTORY, I ORDERED THE LAST 13 TOOTH D.K. HAD IN STOCK! SORRY GUYS!!
#5
05-06-2006, 04:10 AM
RE: 13-tooth you need to do this mod!!
ORIGINAL: Iowaguy
Granted I weigh in at 150 and 5'7 I'm probably feeling more than some of you but it still helped out.
Granted I weigh in at 150 and 5'7 I'm probably feeling more than some of you but it still helped out.
#6
05-06-2006, 04:57 AM
RE: 13-tooth you need to do this mod!!
ORIGINAL: a16tony
Umm, you sayin' somthin' 'bout my lack of metabalism?[sm=bustedsign.gif]
ORIGINAL: Iowaguy
Granted I weigh in at 150 and 5'7 I'm probably feeling more than some of you but it still helped out.
Granted I weigh in at 150 and 5'7 I'm probably feeling more than some of you but it still helped out.
#7
05-07-2006, 08:28 AM
RE: 13-tooth you need to do this mod!!
Hey guys so I am hearing I haven't replaced a sprocket front or rear? so if u install the 13t you need to adjust the chain cause u take a tooth out? just wondering thanks?
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