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Old 07-07-2013, 09:09 AM   #16546
gmansyz
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Questions

Hiya All, new here and am thinking of another DR350SE.
First, how big can I make it? 93mm = 480cc's and 95mm = 500cc's.
Anybody ever try?
And I would go with wider wheels front and back and was even considering a 19" front or even an 18". And a 3.5x18" rear with a very aggressive dual sport tire.
Tnx
G
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Old 07-07-2013, 01:14 PM   #16547
Thanantos
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Originally Posted by 2bold2getold View Post
3.25 X 21 K270. I went bigger on both ends. No bad manners yet.
Good to know. I will keep it in mind.

Since my new to me bike is sporting 14 year old rubber I plan to get some new tires soon, but I'll stick with stock for the first set to get an idea how the bike is supposed to handle.

After that....
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Old 07-07-2013, 01:22 PM   #16548
redleger
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Quote:
Originally Posted by gmansyz View Post
Hiya All, new here and am thinking of another DR350SE.
First, how big can I make it? 93mm = 480cc's and 95mm = 500cc's.
Anybody ever try?
And I would go with wider wheels front and back and was even considering a 19" front or even an 18". And a 3.5x18" rear with a very aggressive dual sport tire.
Tnx
G
Mine is 440cc and it screams. If I could shave 70lbs off it I would make it my permanent trail bike. Never heard of anything bigger than that. But I am by no means an expert. If you do do that I would be interested in results. I would like to go even bigger if I keep it. I am still up in the air about it. Maybe Mr. Bender will have some input on it.

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Old 07-07-2013, 04:16 PM   #16549
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Searched around and couldn't find an answer, but this n00b needs some help with cartridge forks.

My recently acquired '99 has cartridge forks which I have no experience with.

Adding to that, I am a big guy (230#), and I need to change out the 14 year old fork oil anyway.

Can I replace the stock oil with a heavier weight (I am thinking 10w) without causing a problem? Or even better, should I? What do you bigger DR riders find works for you?

Thanks in advance.
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Old 07-07-2013, 04:48 PM   #16550
gmansyz
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Cry Bigger is always better!

Redleger
I used to make pistons for a living and while I don't get deals anymore, I can still get special pieces made. Trouble is, I need to buy four/4 at once. And while everyone likes Hi-Compression, it makes it harder to start and gas will always be an issue. So a low compression BIG engine will lope fin down the road on regular gas while a hi strung, hi-comp engine will need good gas all the time and can be problematic to start, I did think of a small turbo. But if you fall over while boosting, the turbo won't last long. Although there is a new, sealed turbo out there.
I would think HD studs to hold the cylinder on?
And, if there are any buyers out there for the other three pistons would help as well. Do you guys like coatings too?
Red, how light is your 350??
Tnx
for listening.
Greg
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Old 07-07-2013, 05:21 PM   #16551
2bold2getold
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Quote:
Originally Posted by Thanantos View Post
Searched around and couldn't find an answer, but this n00b needs some help with cartridge forks.

My recently acquired '99 has cartridge forks which I have no experience with.

Adding to that, I am a big guy (230##, and I need to change out the 14 year old fork oil anyway.

Can I replace the stock oil with a heavier weight #I am thinking 10w) without causing a problem? Or even better, should I? What do you bigger DR riders find works for you?

Thanks in advance.
http://advrider.com/forums/showpost....postcount=7430

http://advrider.com/forums/showpost....postcount=7536

http://advrider.com/forums/showpost....postcount=8808
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Old 07-07-2013, 05:46 PM   #16552
redleger
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Quote:
Originally Posted by gmansyz View Post
Redleger
I used to make pistons for a living and while I don't get deals anymore, I can still get special pieces made. Trouble is, I need to buy four/4 at once. And while everyone likes Hi-Compression, it makes it harder to start and gas will always be an issue. So a low compression BIG engine will lope fin down the road on regular gas while a hi strung, hi-comp engine will need good gas all the time and can be problematic to start, I did think of a small turbo. But if you fall over while boosting, the turbo won't last long. Although there is a new, sealed turbo out there.
I would think HD studs to hold the cylinder on?
And, if there are any buyers out there for the other three pistons would help as well. Do you guys like coatings too?
Red, how light is your 350??
Tnx
for listening.
Greg
I believe the specs say 380lbs wet. It weighs every bit of it. Night and day compared to my drz250. I would love to bore my drz but I have not the mechanical experience nor the money to do it. I wish I could trade them both in for a do it all bike like a 350exc-f but wish in one hand..... I love both my bikes but eventually I want to race amateur.

I digress. The SE that I have is heavy. If you can make it work and can afford 101 octane I think it would scream down the back roads.

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Old 07-07-2013, 05:59 PM   #16553
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Originally Posted by redleger View Post
I believe the specs say 380lbs wet.
DR350 Wiki has it at 286lbs dry -- http://dr350.wikia.com/wiki/Specifications
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Old 07-07-2013, 06:11 PM   #16554
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Originally Posted by juda5 View Post
DR350 Wiki has it at 286lbs dry -- http://dr350.wikia.com/wiki/Specifications
My kickstart DR350 weighs 301 lbs with a couple of gallons of gas on board - pretty close to the same as an e-start WR or KLX250. For reference my DL650 weighs in at 505. I've never weighed my DR650 but this thread has made me curious so I'm going to do so tomorrow.

ADDENDUM: my DR650 with a full 4.9 gal tank, luggage and side bag racks, GPS and tank bag weighs 381lbs. The gas weighs about 33lbs so the "pig" DR650 is a bit less than 350. Not bad for a Japanese 650.

thump! screwed with this post 07-08-2013 at 06:28 AM
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Old 07-07-2013, 06:23 PM   #16555
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Quote:
Originally Posted by gmansyz View Post
Redleger
I used to make pistons for a living and while I don't get deals anymore, I can still get special pieces made. Trouble is, I need to buy four/4 at once. And while everyone likes Hi-Compression, it makes it harder to start and gas will always be an issue. So a low compression BIG engine will lope fin down the road on regular gas while a hi strung, hi-comp engine will need good gas all the time and can be problematic to start, I did think of a small turbo. But if you fall over while boosting, the turbo won't last long. Although there is a new, sealed turbo out there.
I would think HD studs to hold the cylinder on?
And, if there are any buyers out there for the other three pistons would help as well. Do you guys like coatings too?
Tnx for listening.
Greg
I have to say that I am interested - but - How big? How low? What kind of coating?
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Old 07-07-2013, 07:20 PM   #16556
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Only one of those posts even mentions fork oil at all and that was with a completely new suspension.

Apparently you had about as much luck as me searching for it.
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Old 07-08-2013, 01:22 AM   #16557
redleger
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Yea 286 dry. I had my numbers jumbled up. Still with bigger plastic tank full its over 300. The drz is about 100lbs lighter. Still heavier than a rmz but in comparison I move it around so much easier than the DR. I want the power of my dr in the weight of a drz and street legal. :(

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Old 07-08-2013, 01:23 AM   #16558
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Anyway point being. I wanna see how it turns out with your piston swap.

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Old 07-08-2013, 04:11 AM   #16559
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I know you're were not being overly accurate with weights, but dry the DRZ is 253 lbs, so 35 lbs less than the DR.....that's still a lot but no where near 100lbs.
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Old 07-08-2013, 04:24 AM   #16560
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Curb weight of a new drz400s is 316lbs.(that's with 2.6 gallon stock tank), so the street model is pretty much on par with the dr350SE (286 dry), don't kill me for more or less 10lbs .

There aren't many options for a lighter dualsport that has the seat width to allow you to ride all day, I loved my xt225 (around 250 wet) because it would fall on me and I'd push it right off, but it's too dang small. The dr350 really is the way to go...
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