Minimalist Touring Thread (250cc and under) - Page 292

NJ-Brett · 10-28-2011, 06:20 PM

Some people are just timid, and tend to think any changes will ruin reliability, or that the factory make something the best it can be (and ignore emissions and noise restrictions).
I have modified all my bikes for more power and never had one wear out, or blow up, or break down.

I never had a bike wear out a motor, but have got some stock used ones that were worn out.
I put a big bore kit in an old xl250, plus a cam, and that thing ran great for a long time with lots of abuse.

Now I don't think you could double the power output of a motor without running into issues long term, but your usual 20% seems fine.
I am sure your typical bike looses at least 10% of its power in intake noise and lean burning mandates.
And that only makes the motor run hotter and have a shorter life.

Oddly enough, my current bike does NOT seem to be limited by the usual intake, exhaust and lean burn restrictions.
It seems to be valves and cam stuff that limits power.
Even if they made a big bore kit, it would do nothing...

kYLEMtnCRUZr · 10-28-2011, 06:24 PM

Im not against displacement changes, but what's with that jittery graph for the 351?
Different dyno or something?

bumblebee1 · 10-28-2011, 06:26 PM

I guess some people like to smooth out their graphs.

Klay · 10-28-2011, 06:28 PM

What happened to our font?

Spud Rider · 10-28-2011, 06:31 PM

Quote:

Originally Posted by Klay

What happened to our font?

X2!

The previous pages of this thread are fine, and other threads at this forum are fine!

Spud

Klay · 10-28-2011, 06:35 PM

I've observed the effect in several places on advrider.

Spud Rider · 10-28-2011, 07:31 PM

Quote:

Originally Posted by Klay

I've observed the effect in several places on advrider.

I believe you.

I haven't noticed it in the other threads to which I'm subscribed. However, if it can happen to this thread, I don't see why it can't happen to other threads. I hope they fix it.

Spud

Spud Rider · 10-28-2011, 07:35 PM

Holy cow, Klay! I just noticed; you have almost 71,000 posts at ADVRider!

That's a lot of posts, even with your 6-year anniversary arriving next month! Congratulations, and thank you for all the great information you share.

Spud

Klay · 10-28-2011, 07:38 PM

cug · 10-28-2011, 07:55 PM

What happened is that the post with the dyno charts had an embedded style tag. Probably pasted from an external text editor to create that table. This had a font definition in it that screwed the page.

Spud Rider · 10-28-2011, 07:58 PM

That sounds like a reasonable explanation, Cug.

I'm glad starting a new page fixed matters.

Spud

bumblebee1 · 10-28-2011, 08:03 PM

sorry

bumblebee1 · 10-28-2011, 08:04 PM

I think it was the spreadsheet that did it.
Should have pasted it in a word processor first.

cug · 10-28-2011, 08:30 PM

Quote:

Originally Posted by bumblebee1

I think it was the spreadsheet that did it.
Should have pasted it in a word processor first.

Na, they all create pretty crappy HTML - it isn't too much of a problem normally. Have seen worse.

bumblebee1 · 10-29-2011, 07:04 AM

All in all, the numbers are quite interesting.
the 351 makes power much lower than the wwr, but the wwr beats it in the end.
The KLX on the chart is a fuel injected model, something we don't have here in north america.
I read some place else that it only does about 17 hp at the rear wheel with a carb.
I never could understand why the numbers are all over the place.

10-28-2011, 06:26 PM	#4368
bumblebee1 All bikes are dirt bikes Joined: Mar 2008 Location: Ottawa Oddometer: 1,431	I guess some people like to smooth out their graphs. __________________ And what are you planning to do with your one and only life?

10-28-2011, 06:28 PM	#4369
Klay plainsman Joined: Nov 2005 Location: out in the great wide open Oddometer: 89,080	What happened to our font? __________________ _______

10-28-2011, 06:35 PM	#4371
Klay plainsman Joined: Nov 2005 Location: out in the great wide open Oddometer: 89,080	I've observed the effect in several places on advrider. __________________ _______

10-28-2011, 07:35 PM	#4373
Spud Rider Beastly Adventurer Joined: Jun 2008 Location: Idaho Oddometer: 2,949	Holy cow, Klay! I just noticed; you have almost 71,000 posts at ADVRider! That's a lot of posts, even with your 6-year anniversary arriving next month! Congratulations, and thank you for all the great information you share. Spud __________________ 2005 XR650L: Shorai Battery Relocation, Spud Oil Cooler, XR650R C/S Sprocket, Reinforced Subframe, Chain Slipper Roller, Performance Design Lowering Link, Baja Designs Headlight, FMF Hi-Flo Header, ManRacks SD Rack, CST Surge I Front Tire, D952 Rear Tire, Tusk D-Flex Handguards, Uni Air Filter, No-Toil Evolution air filter oil Spud Rider screwed with this post 10-28-2011 at 07:58 PM

10-28-2011, 07:38 PM	#4374
Klay plainsman Joined: Nov 2005 Location: out in the great wide open Oddometer: 89,080	__________________ _______

10-28-2011, 06:20 PM	#4366
NJ-Brett Brett Joined: Sep 2010 Location: Southern New Jersey Oddometer: 4,718	Some people are just timid, and tend to think any changes will ruin reliability, or that the factory make something the best it can be (and ignore emissions and noise restrictions). I have modified all my bikes for more power and never had one wear out, or blow up, or break down. I never had a bike wear out a motor, but have got some stock used ones that were worn out. I put a big bore kit in an old xl250, plus a cam, and that thing ran great for a long time with lots of abuse. Now I don't think you could double the power output of a motor without running into issues long term, but your usual 20% seems fine. I am sure your typical bike looses at least 10% of its power in intake noise and lean burning mandates. And that only makes the motor run hotter and have a shorter life. Oddly enough, my current bike does NOT seem to be limited by the usual intake, exhaust and lean burn restrictions. It seems to be valves and cam stuff that limits power. Even if they made a big bore kit, it would do nothing...

10-28-2011, 06:24 PM	#4367
kYLEMtnCRUZr Got Singletrack? Joined: Jul 2008 Location: Placerville CA Oddometer: 54	Im not against displacement changes, but what's with that jittery graph for the 351? Different dyno or something?

10-28-2011, 07:55 PM	#4375
cug . Joined: May 2009 Location: Sunny California Oddometer: 3,465	What happened is that the post with the dyno charts had an embedded style tag. Probably pasted from an external text editor to create that table. This had a font definition in it that screwed the page.

10-28-2011, 07:58 PM	#4376
Spud Rider Beastly Adventurer Joined: Jun 2008 Location: Idaho Oddometer: 2,949	That sounds like a reasonable explanation, Cug. I'm glad starting a new page fixed matters. Spud __________________ 2005 XR650L: Shorai Battery Relocation, Spud Oil Cooler, XR650R C/S Sprocket, Reinforced Subframe, Chain Slipper Roller, Performance Design Lowering Link, Baja Designs Headlight, FMF Hi-Flo Header, ManRacks SD Rack, CST Surge I Front Tire, D952 Rear Tire, Tusk D-Flex Handguards, Uni Air Filter, No-Toil Evolution air filter oil

10-28-2011, 08:03 PM	#4377
bumblebee1 All bikes are dirt bikes Joined: Mar 2008 Location: Ottawa Oddometer: 1,431	sorry __________________ And what are you planning to do with your one and only life?

10-28-2011, 08:04 PM	#4378
bumblebee1 All bikes are dirt bikes Joined: Mar 2008 Location: Ottawa Oddometer: 1,431	I think it was the spreadsheet that did it. Should have pasted it in a word processor first. __________________ And what are you planning to do with your one and only life?

10-29-2011, 07:04 AM	#4380
bumblebee1 All bikes are dirt bikes Joined: Mar 2008 Location: Ottawa Oddometer: 1,431	All in all, the numbers are quite interesting. the 351 makes power much lower than the wwr, but the wwr beats it in the end. The KLX on the chart is a fuel injected model, something we don't have here in north america. I read some place else that it only does about 17 hp at the rear wheel with a carb. I never could understand why the numbers are all over the place. __________________ And what are you planning to do with your one and only life?

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