dyno jet
05-11-2010 | 07:08 PM
#1
Thread Starter
Member
Squid
Joined: Mar 2010
Posts: 84
From: Boca Raton FL
dyno jet
hi i am planing on changing my exhaust pretty soon , and i keep on hearing that i must jet the carb can sumone give me a explanation why i have this done . also i,ve been look on ebay for a kit . can sumone tell me it this all that consist of a jet kit.
http://cgi.ebay.com/ebaymotors/Honda...Q5fAccessories
MODs: blue led light/Timing advance/ intergrated turnsignal/tailight,
http://cgi.ebay.com/ebaymotors/Honda...Q5fAccessories
MODs: blue led light/Timing advance/ intergrated turnsignal/tailight,
05-11-2010 | 11:07 PM
#3
Senior Member
MotoGP
Joined: Aug 2007
Posts: 2,547
From: Way Out West
The picture on ebay is missing some parts-- the springs and the "D" tool for adjusting the pilot screws. Maybe he just didn't put all the parts in the photo as the kits (9 available) are listed as new.
If you stay with the OEM air filter and get street baffle slipons, you probably don't need to rejet. If you change filter and/or get race baffle cans, you probably do.
If you stay with the OEM air filter and get street baffle slipons, you probably don't need to rejet. If you change filter and/or get race baffle cans, you probably do.
05-12-2010 | 06:35 AM
#4
Destructive Tester
Superstock
Joined: Oct 2009
Posts: 263
From: N.E. oHIo
The pic in the Ebay listing is generic. Notice there are 4 needles..........
Rex
05-12-2010 | 09:58 AM
#7
2nd mouse gets the cheese
SuperBike
Joined: Jan 2008
Posts: 1,697
From: Beaverton, OR
if you don't drill though you have to use the old springs, if you do you have to use the dyno jet springs. I don't think it really matters, but after trying to put the stock springs back in you might be frustrated enough to try the shorter springs for that reason alone.
As far as the issue on hand no need to rejet just yet, change the exhaust, ride the bike, then if you notice any flat spots or carb back fires (sound like a clack under the tank) then and only then does it require jetting. Unless you are on a quest for those mysterious couple of hp gain. The only way to get that reliably is to jet and dyno tune it for performance which is going to cost some coin. So IMO I say only fix what isn't working right.
As far as the issue on hand no need to rejet just yet, change the exhaust, ride the bike, then if you notice any flat spots or carb back fires (sound like a clack under the tank) then and only then does it require jetting. Unless you are on a quest for those mysterious couple of hp gain. The only way to get that reliably is to jet and dyno tune it for performance which is going to cost some coin. So IMO I say only fix what isn't working right.
05-12-2010 | 11:18 AM
#8
Senior Member
SuperSport
Joined: Feb 2010
Posts: 667
From: NY State
A high flow air filter will require rejetting more so than a pipe. You may be able to get away with a shim under each needle. Cheap and easy, but you should ride it beofre doing anything to see what might be needed.
JB
JB
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