>Please add me to your mail list. I just purchased a new 1998 Suzuki
>DR350SE and have done a few modifications to the bike. I cut the top
>off the airbox and added a Cobra ISDE exhaust. Due to the pipe
>change I went from 127.5 jet to a 135 to help richen it up. I then
>put a shim in to raise the needle up a little to further richen the
>mixture. A set of pro grip dual-sport grips take care of the black
>marks on the palms, although the factory grip glue makes the
>installation a hassle. The stock gearing was not low enough for off
>road hill climbing so I changed the front sprocket from 15 to 13
>tooth. I still cruise at 55 mph at 5600 rpm. I now have 1500 miles
>on the bike and the stock tires, which were not very good anyway, are
>being replaced with Pereli MT21 front and rear. These have a much
>better lug spacing so they should not clog up with mud like the
>stock tires did. The person who installed the tires said that the
>new tires had a much stiffer sidewall than the original. Any other
>good information on these bikes would be great. Eric
------------------------------
Date: Mon, 7 Jun 1999 11:04:10 -0500
From: Andy Graham <graham@si2.org>
Subject: RE: (dr350) (noDRcontent)Short ride report on the YZ250WR
Well to a point - marine engines:
1. Are cooled with a heavier water jacket
2. Have typically lower compression
3. Are multicylinder w/ valve timing to make torque at lower RPM's
I have a Yamaha 1100 triple watercraft with a TBO longer than a
2 stroke dirtbike for these reasons.
Andy --
- -----Original Message-----
>From: George Kovacs [SMTP:mtctech@acronet.net]
Sent: Saturday, June 05, 1999 11:53 PM
To: dr350@lists.xmission.com
Subject: Re: (dr350) (noDRcontent)Short ride report on the YZ250WR
Hi,
Not for argument, but for conversation, i agree with everything but,
>
> > >There are drawbacks you cannot hold a 2 stroke at high rpms for any length of
> time
> > >or you will blow the motor.
i would disagree with that, marine outboard engine run on same mixture of gas-oil
( the newer one can vary the amount of oil) and it runs in top or near top RPM
range constantly.
>
> > >Last is the maintainance you must rebuild these motors every
> > >60 hrs or so new piston rings and cylinder honed.The parts wear down
> > >faster as the motor is not lubricated as well as a 4 stroke.
again, marine engines run for 10+ years without any re-ring. Most of the 2 smoke
riders rebuild because of competition, and want to run it at top performance to
win the race.
George
------------------------------
Date: Mon, 07 Jun 1999 09:07:50 -0700
From: Scott Aldrich <scotta@sr.hp.com>
Subject: Re: (dr350) Tires
Mark Tynan wrote:
>
> Please pardon a potentially old question. Has anybody used Pirelli MT-21 or Maxis C6006 tires? I'm looking for new tires for my '95 DR350SES. I ride back and forth to work in the spring and summer and do some desert riding (black rock desert Nevada). I'm thinking that a 50/50 tire would be a good choice. IRC GP 110's might be a little less suitable for offroad, though I don't do anything really harsh when I am offroad.
I've been using a Dunlop K695 in the rear and a Dunlop 755 up front.
I've been riding about 70/30 street/dirt. The Dunlops are pretty good
on the street, but I have spun out the rear once on some black ice. I
think any street tire would have done the same. In the dirt the tires
are pretty good, but I made the K695 pretty useless in a short amount of
time. The 755 is just now starting to round, but it's not rounding like
the a rear tire would. It's actually rounding on the braking side.
I've had them on for about 1500 miles, and there's still a little knob
on the rear, but not much.
I'm going to try a set of Michelin M11's next (these tires have been
replaced with the M12). These are very aggressive looking knobbie's, so
I doubt they will be very good on the street. I'm going to enter a dual
sport up at Tahoe at the end of the month, so I wanted something more
for off-road. We'll see how quickly I wear down the knobbies on these.
