From: owner-dr-digest@lists.xmission.com (dr-digest) To: dr-digest@lists.xmission.com Subject: dr-digest V1 #45 Reply-To: dr-digest Sender: owner-dr-digest@lists.xmission.com Errors-To: owner-dr-digest@lists.xmission.com Precedence: bulk dr-digest Monday, February 21 2000 Volume 01 : Number 045 (dr) 1993 DR 350 Re: (dr) mmmmmm ... DualStar (dr) Grease specification RE: (dr) re: Vortex air box ---------------------------------------------------------------------- Date: Sat, 19 Feb 2000 15:05:43 -0800 From: "Jesse Wardlow" Subject: (dr) 1993 DR 350 I have a 93 DR 350 that has been flawless for since the day I bought it new. I havent rid it in about 6 months and when I went to start it, I broke the compresion cable. No big deal. I have started it several times with out one. Well this time I could not get it to start. So I left it alone and ordered a new cable. After installing the new cable I have found that I have no compression now. I can crank it over with my hand. After investigating further I have found that the compression lever on the motor is some what stiff. So I moved it around by hand and after turning it to the corect postion for the motor to be running, I have more compresion, but cn still kick it over with my foot easly. After taking off the caps on the top of the engine I have found that when I pull the cable and the decompresion lever opens, after kicking it over, It does not click and go back to the closed postion. Any help would be great. Thanks. - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. ------------------------------ Date: Sat, 19 Feb 2000 22:18:37 -0800 From: Mike A Hyers Subject: Re: (dr) mmmmmm ... DualStar Lisa, Dual-star's web site is http://www.dual-star.com/ , unfortunately there is not much up for dr's yet. It's worth checking out for the klr stuff though. Mike - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. ------------------------------ Date: Sun, 20 Feb 2000 20:04:21 +0000 From: Iain Wilson Subject: (dr) Grease specification Hi, Could I ask which preparation of Castrol grease is best for the suspension on my 99 DR 350 please? Thanks, Iain - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. ------------------------------ Date: Sun, 20 Feb 2000 23:56:18 -0800 From: "Jesse Kientz www.kientech.com" Subject: RE: (dr) re: Vortex air box Hi Jan, I have a fellow that is supposed to bring one over this coming week to check out the feasability of fitting one up to the late DR650. Regards, Jesse Kientz http://www.kientech.com/ - -----Original Message----- From: owner-dr@lists.xmission.com [mailto:owner-dr@lists.xmission.com]On Behalf Of Jan Bradley Sent: Saturday, February 19, 2000 8:07 AM To: Comobu@aol.com; gregl@aptix.com; dr@lists.xmission.com; dr350@lists.xmission.com; jesse@rvi.net Subject: RE: (dr) re: Vortex air box Hey Jesse, Is there, or is there ever going to be a Vortex air box for the DR650? JB >>> "Jesse Kientz www.kientech.com" 02/18/00 08:34PM >>> Well put Greg.....Jesse - -----Original Message----- From: owner-dr@lists.xmission.com [mailto:owner-dr@lists.xmission.com]On Behalf Of Greg Lara Sent: Friday, February 18, 2000 6:05 PM To: Comobu@aol.com; dr350@lists.xmission.com; dr@lists.xmission.com Subject: (dr) re: Vortex air box Ideally, an air box should be tuned like a pipe, but to deliver the opposite effect. In the case of a pipe, after an exhaust pulse leaves the port and travels to the end of the pipe, a negative wave (a pulse of low pressure) reflects back from the opening at the end of the pipe and travels back to the exhaust port. A performance pipe is tuned so that the negative wave arrives at the exhaust port just as the port is opening. This encourages the exhaust gasses to exit the combustion chamber more quickly, allowing for more rapid replenishment of fresh fuel-air mixture. In this way, a tuned pipe allows the engine to breathe even more freely than an engine with no pipe at all. That is, a tuned pipe helps suck exhaust from the engine. A similar even takes place within the air box. The engine gulps in air, lowering the air pressure inside the air box. Outside air then rushes into the air box under atmospheric pressure. Even as the pressure inside the air box becomes equal to pressure outside, the momentum of the in-rushing air carries a little more air into the air box, raising the pressure inside the air box above atmospheric pressure. If the air box is tuned right, the pressure inside the air box should reach its maximum just as the engine takes its next gulp of air. In the ideal case, more air flows into the engine with the air box than with a bare carburetor. In other words, a tuned air box can help cram more air into the engine. - --Greg DR350SE '94 CR250 '91 XR650LE '94 VFR750 '91 - -----Original Message----- From: owner-dr@lists.xmission.com [mailto:owner-dr@lists.xmission.com]On Behalf Of Comobu@aol.com Sent: Friday, February 18, 2000 5:35 PM To: dr@lists.xmission.com Subject: Re: (dr) (DR350) Gearing Change Inlet valves opening, still air chambers filling, engines being satisfied...I love it! >From what little I know, I'm going to say Jesse's right.. an airbox is better thru out the RPM range than just a sock airfilter... there's some mysterious sonic wave pulses within the box that's part of the design and overall tuning of the motor... like a flute meant to resoanate at different notes... because I know you can't just drill big holes indiscrimintly (in a hurry my spelling sucks) in the airbox... it ruins the awesome powerband of the DR! Guy - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. - - to unsubscribe to dr, send an email to "majordomo@xmission.com" with "unsubscribe dr" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message. ------------------------------ End of dr-digest V1 #45 *********************** - To unsubscribe to $LIST, send an email to "majordomo@xmission.com" with "unsubscribe $LIST" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.