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Old 07-10-2012, 06:21 AM   #4861
elsalvadorklr
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Joined: Nov 2008
Location: el salvador
Oddometer: 4,076
stuff and advice needed

soo thought id update again and get some advice

it seems after riding 3 hours to work yesterday and testing my "topend" that albeit everything is ok, I am running high temps...

and I wont push the bike like I used too

it seems that the mikuni tm38 has improved performance and midrange, but not topend, and its there from about 1/2 throttle to wot that I am lean as cruising down the highway(yes i know 14/50 gearing doesnt help) but its a desert bike no?) is where I get the highest temps...

I can make the oil get to 290f

sooo

my question is

anybody know what desert racers used to get for oil temps? normally? wuth or without a cooler?

also

maybe my tm38 was not bored out to xr's only specs at 41mm, if so would this be the reason I cant get my stock topend?

the upjet from 210main to 230 was noticeable and I do not have the "flat" or lean spot that I used to feel

I do however notice that my temps did not change one bit! same temps....

soo

what to do?

OIL COOLER? yeah I know...but if I cant get my topend back then whats the point?

the old kehin got lower temps and better topend by about 10mph...

or keep upjetting my main on the mikuni? to say a 250?

xrsonly kits come with a 17.5 pilot and a 240 main

thanks
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Old 07-10-2012, 03:33 PM   #4862
Mike the Yank
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Thumb

Thanks Christian, gives me something to work with. Now I just have to talk the missus into hold the tape measure!
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Old 07-10-2012, 07:39 PM   #4863
motomike14
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Location: Florida
Oddometer: 1,653
Have you taken a look at the plug? If it is really lean, the plug will tell the tale. I've heard of iridium plugs making air cooled engines running hot; not sure what you have in it, but if you have an iridium, may be the source of your issues. Try running a cooler plug possibly (bigger number = cooler plug). Maybe also check your oil lines to make sure you don't have any pinches or issues?
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Old 07-10-2012, 08:37 PM   #4864
elsalvadorklr
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Joined: Nov 2008
Location: el salvador
Oddometer: 4,076
thanks man

I read my plug on a weekly baisis and with the new carb after every ride and during

it looks great

I also posted a pic a few pages back..

its on the lean side if good to my eyes

I will be putting a dpr9 as soon as I can get one...that is only for high speed riding

not to be done during normal riding

this heat issue is related to the new carb

also I must mention that my old carb was still in fact rich if you compare plug to plug chop.


ps. no oil line pinched...pump has new seals and check valve....if anything Im extremely paranoid about that kind of stuff...

cheers man
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Old 07-13-2012, 06:54 AM   #4865
elsalvadorklr
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Joined: Nov 2008
Location: el salvador
Oddometer: 4,076
5th page really?

come on guys post pics or something,

if youre riding then you are excused but man...

took my five clicks and I dont know how many seconds to find our thread so I could post this useless post

jajaja

later dudes

maybe next week I ca get a small ride in

busy busy at the bar

so its summer...up north, anyone want to ride down?

jeje

christian
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Old 07-13-2012, 12:18 PM   #4866
deejay_xr
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Joined: Mar 2012
Location: Netherlands
Oddometer: 496
You want a picture ??


Here's a work in progress I've been working on again today, far from finished but taking shape





Stained glass Dodge Challenger

You can't really see the colours of the glass since it's on a board.
This is a LOT of work

Carry on gentlemen...
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Old 07-13-2012, 12:36 PM   #4867
MentalGuru
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Quote:
Originally Posted by elsalvadorklr View Post
come on guys post pics or something,

if youre riding then you are excused but man...

took my five clicks and I dont know how many seconds to find our thread so I could post this useless post

jajaja

later dudes

maybe next week I ca get a small ride in

busy busy at the bar

so its summer...up north, anyone want to ride down?

jeje

christian

Shoot me your address so I can send you the header....
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Old 07-13-2012, 10:55 PM   #4868
Dino3310
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Location: waikato gravel and sand
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Quote:
Originally Posted by elsalvadorklr View Post
come on guys post pics or something,
christian
Fine i will - Thompsons track NZ



the track



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Old 07-13-2012, 10:57 PM   #4869
Dino3310
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Location: waikato gravel and sand
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oh and one of the happy rider
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Old 07-13-2012, 11:06 PM   #4870
Callahan
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Originally Posted by dino3310 View Post
oh and one of the happy rider
like a pig in shit
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Old 07-13-2012, 11:43 PM   #4871
Dino3310
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Location: waikato gravel and sand
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Originally Posted by Callahan View Post
like a pig in shit
Ooooh Yeah
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Old 07-14-2012, 05:48 AM   #4872
adventurer
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Location: Geelong Victoria Australia
Oddometer: 70
xr600 conrod

Guys
I was after opinions on my conrod, i pulled my top end down today due to alot of oil usage, i found the top end in really good condition (the rings are worn out and will need a rebore and new piston ) but there was no damage, no scuffing to the piston or bore so its going to be getting a rebore, new piston and rings, new timing chain and valve grind but im not sure about the conrod as it shows wear through the copper but is still smooth, whats everyones opinions




thanks
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Old 07-14-2012, 05:51 AM   #4873
mcma111
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Location: San Francisco,Ca.
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Quote:
Originally Posted by adventurer View Post
Guys
I was after opinions on my conrod, i pulled my top end down today due to alot of oil usage, i found the top end in really good condition (the rings are worn out and will need a rebore and new piston ) but there was no damage, no scuffing to the piston or bore so its going to be getting a rebore, new piston and rings, new timing chain and valve grind but im not sure about the conrod as it shows wear through the copper but is still smooth, whats everyones opinions




thanks

How does the wrist pin fit/feel? Some looseness is the normal.
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Old 07-14-2012, 06:00 AM   #4874
adventurer
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It has some play if wobbled but no actual up and down play
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Old 07-14-2012, 06:15 AM   #4875
mcma111
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Location: San Francisco,Ca.
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Side to side at the big end/lower part of the rod is normal. Put the wrist pin in but use the END, not worn center of the pin to check loosness.
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BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
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