Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Quads, Bikes, and Sleds
GL4x4 Live! GL4x4 Casino







Search
Reply
 
Thread Tools
Old August 16th, 2008, 04:45 PM   #1
bigblue2230
still goin
 
bigblue2230's Avatar
 
Join Date: 11-08-05
Location: Royal Oak
Posts: 940
iTrader: (11)
Mentioned: 0 Post(s)
Default Carbon

How much carbon buildup is considered normal. I just pulled apart the top end of my 2000 cr250 (I bought it back in January, so this is the first time I have pulled the top end on it) and there seems to be a lot of carbon. It also made the power valve very sticky. I went through it and cleaned everything, and the powervalve moves freely now. I put roughly 45 hours on this bike since I bought it, and the previous owner said he put less than 10 since a full rebuild.

Is this normal? Should I be rebulding this more often, or at least pulling it apart to clean these items?

I usually run 40:1 fuel/oil ratio.
bigblue2230 is offline   Reply With Quote
Old August 16th, 2008, 08:35 PM   #2
jeepguy74
Senior Member
 
jeepguy74's Avatar
 
Join Date: 08-14-06
Location: wellston (west of cadillac)
Posts: 2,861
iTrader: (22)
Mentioned: 0 Post(s)
Default

what oil do you run i have had great luck with belray and klotz beanoil and have had minimal carbon and i ran the bike a couple years between rebuilds ...however the power valve gumms up from oils that arent designed for powervalves ( the 2 oils i just talked about are for powervalve motors) also klotz r50 (i believe) a buddy of mine used and had no problems with it.......
jeepguy74 is offline   Reply With Quote
Old August 18th, 2008, 06:53 AM   #3
ScOoTeR
hoo dat. wat.
 
ScOoTeR's Avatar
 
Join Date: 11-09-05
Location: Howell
Posts: 21,355
iTrader: (35)
Mentioned: 5 Post(s)
Default

x2 on the oil brand. Oil is a science these days in a 2 stroke. Depending on how you ride, R50 might work well. It has a high film strength (like the old castor bean oils) without gumming up your PV. In my 300, it is bad because I don't ride on the pipe hardly ever. R50 caused me a few problems with fouling and spooge.

I recently changed over to amsoil premix and have had good results. Also, I run 50:1 in my bike.
__________________
@clarkstoncracker
ScOoTeR is online now   Reply With Quote
Old August 18th, 2008, 07:42 AM   #4
bigblue2230
still goin
 
bigblue2230's Avatar
 
Join Date: 11-08-05
Location: Royal Oak
Posts: 940
iTrader: (11)
Mentioned: 0 Post(s)
Default

Ok, I was definately not running the right oil (I used to run an 84 rm250, and ran the same oil as that. DOH!) I was probably running too rich a mixture too. I will try better oil and less of it this next time around. Thanks for the input.
bigblue2230 is offline   Reply With Quote
Old August 18th, 2008, 08:25 AM   #5
ScOoTeR
hoo dat. wat.
 
ScOoTeR's Avatar
 
Join Date: 11-09-05
Location: Howell
Posts: 21,355
iTrader: (35)
Mentioned: 5 Post(s)
Default

Quote:
Originally Posted by bigblue2230 View Post
Ok, I was definately not running the right oil (I used to run an 84 rm250, and ran the same oil as that. DOH!)
Golden Spectro? That's what I used to run in my old non-pv bikes.
__________________
@clarkstoncracker
ScOoTeR is online now   Reply With Quote
Old August 18th, 2008, 09:36 AM   #6
jeepguy74
Senior Member
 
jeepguy74's Avatar
 
Join Date: 08-14-06
Location: wellston (west of cadillac)
Posts: 2,861
iTrader: (22)
Mentioned: 0 Post(s)
Default

i would stick with the belray ....you can get it at most bike shops and the dunes also and mixing ix easy one bottle to a 5 gal can of gas

which is like 40 to 1
jeepguy74 is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Quads, Bikes, and Sleds
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -5. The time now is 07:17 PM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2005 - 2012 Cracker Enterprises - Powered by Linux
vB Ad Management by =RedTyger=
Page generated in 0.09511 seconds with 24 queries