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Discussion in 'Thumpers' started by CSMonte, Dec 8, 2008.
Easily in 1st. You have to help it a little in 2nd. Itll due about 105 MPH.
Cool site !
The XR600 tank covers are all for '88 and up unfortunately
Are the earlier tanks different?
Yeah they are, if you look at my picture on the previous page you'll see that <'88 the side panels didn't line up with the gas tank like they did later on.
Because the >'88 gas tank connects to the side panels, the 'tip' of the tank under the seat has a flat edge that the earlier models do not have
That is exactly how manufacturers rate their engines; at the crank. IMO, a big port XL600 should be capable of over 40rwhp in uncorked stock trim (they were rated at 43bhp), but probably not an '88+ XR. Bikes generally have about 14% driveline loss on a dyno with a street tire. Knobbies are substantially worse from what I have heard.
14% loss means 36rwhp is around 42bhp.
That old thread on TT with the guy saying his uncorked bike made 46rwhp and 49hp with minor mods is a joke.
Thanks for the reply HT
Yeah that's what I thought
I figured as much
Is it really true that the dual carb models made noticably more power than the later models?
I do notice my XR has lost some uber low end grunt. Even when considering I upped the rearsprocket tooth count. (40->43)
My old head gave me more torque (feeling wise..) around 2000rpm.. Now I sometimes downshift to avoid it from shuddering..
Went to work today with the piggy,
Now, thinking i've done pretty much errything, clutch slips :huh
If I WOT it in a higher gear on low speeds it slips a while and at the end it engages again.. Also, my clutch engages at the very end of my clutchlever.. eh, movement? Whats it called. If you release the lever, it will engage at allmost the last part of the movement it makes..
Me thinks replacing the springs AND plates... Any thoughts? and which brand and type? Preferable not too expensive..
I used the ebc clutch kit, and with the cam, 644cc piston and big carb/header it never slipped and made for awesome 4th gear wheelies
Damn dude !
The silver lining is that you don't have to remove the damn engine from the frame to fix that !
You sure you have enough free play in the lever right? Just to make sure that's not it.
Looks good btw
pretty happy about that too..
The lever has I think a cm or 2 of play..
how is the lever feel? I don't want a heavy clutch feel..
hard but adjustable asv shorty lever and it felt great to be honest.
hmm.. I had a aftermarket perch and lever on the to do (to buy rather..) list... so maybe it'll work out.. Is it linear or does the feel get heavier?
It is linear. You get more pull out of the asv lever vs stock lever. Feel is nice honestly. I would never go back if I put the xr back together.
Then I think i'll go for a EBC set, since its the only thing available in the Netherlands as far as I can see..
Clutch lever movement is called TRAVEL
royal congrats on the dyno, not bad at all in my book...
ps. like ht said yes all hp numbers honda and all manufacturers put out back in the day is crank hp...plus at least 10% jajajaja
my yammie xt was 43hp, the xr600 is supposed to be 46, my yammie had much more low end grunt from the dual carb and head design, STOCK
hopefully next week Ill be able to teardown my baby so I can see wtf went wrong, eeeeh, sucks...miss the bike and the forums!
keep on riding!
Good work Royal, it's great to know roughly what our bikes make and not just numbers which are chosen by the manufacturer (not saying that Honda made it up, but if it was my company I would post the highest figures without mentioning how I got it, ie fuel consumption I would also use highway figures so my product looks better)
Hey so what happened to selling the XR? Or more importantly, what happened to the bike that you need to tear it down again? I must've missed this somewhere.
Oh and FYI to the people on this thread, my rebuild is still happening...I am just waiting for the money to come in so I can buy all the parts. One big purchase sucks to save up for, but saves me hundreds in shipping.
well yeah the bike is for sale, permanently I guess!
nothing like getting offers for 1k...yeah sure.
about the bike I had a weird stalling cutting out issue that I have decided is from badly leaking valves or something else
I found a weird 1 out of every 3 or 4 kick cycles I get compression then it will just go through without any problems...so its leaking somewhere
I HOPE its not rings..but you just never know huh?
Hi fellers, I am wanting to fit an HID to my XR600R. I know the HID's work from a 12v DC source (battery) but my understanding is that the XR headlight is powered by a 12v AC source.
Has anyone got any idea if an HID will work on an XR? Has anyone done this before?
UPDATE: It seems it won't work, the HID requires a DC supply.