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Old 01-04-2011, 07:49 PM   #31
cyclewizard
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Originally Posted by techforlife View Post
IIRC he wants people to download it..so PhotoBuggers doesn`t take a crap...and then just thank him...sooooooooooo THANKS HEADTRAMA....

There...am i safe now...or do i have to move to Siberia

B
Living way up there where you reside in the snow belt bug infested woodlands of no mans land I think your safe.
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Old 01-04-2011, 07:54 PM   #32
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Originally Posted by mcma111 View Post
Well that explains it, I guess. I have been using WISECO pistons....
Well stop using them then......


Kiddin


B
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Old 01-04-2011, 08:10 PM   #33
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Living way up there where you reside in the snow belt bug infested woodlands of no mans land I think your safe.
Well......i don`t know about snow anymore,,we got our first real snow yesterday,,6 inches.........it`s been at or above freezing till now..somebody go spray some R12 refridgerant and we`ll be like Florida in a few years..............sad but true...

B
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Old 01-04-2011, 08:17 PM   #34
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Well......i don`t know about snow anymore,,we got our first real snow yesterday,,6 inches.........it`s been at or above freezing till now..somebody go spray some R12 refridgerant and we`ll be like Florida in a few years..............sad but true...

B
Where the hell do you live ?The weather sucks here we've been ice racing on the lakes already.
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Old 01-04-2011, 08:36 PM   #35
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Many years ago I went through the whole thing with an XR650L. Carb, piston, cams, pipe, etc. It made more power but not enough for my unreasonable expectations I sold it. I bought my 690r a year and a half ago and right out of the box this bike makes great power. So I dunno. In retrospect I probably would not have done the cam and just maybe some carb mods and maybe the piston.
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Old 01-04-2011, 11:03 PM   #36
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As seen at the top of the chart, the 650L has a shorter connecting rod than the 600s and that allows the stock piston to sit even lower in the hole at TDC. Crunch the numbers with an XR600 rod and stock 650L piston and see what happens.

I will add that I didn't put the Wiseco 8.7:1 piston on the chart because it has the same CH as a stock piston, just with no dish in the top and it's a forging instead of a casting.
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Old 01-05-2011, 03:20 AM   #37
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Ok guys,

I am well impresses with your knowledge!
This conversation took us much far than I thought...but it has been well worthed.

The bottom line for me is to remember to my self why I bought this bike here in Europe where it is very hard to find it: it's well known reliability!
My bike only got 5000 miles and if no needed I won't touch cylinder and piston...to much hassle,risks and money.

To gain much more...I'll better get an XR650R or KTM 690

So my plan would be:
1)Carburettor
2)NX 2nd gear keeping my 14+48 final transmission.

After all I feel this is the best value for money/reliability.

What you think guys? Which carb would you go for?

Thanks

Nic
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Old 01-05-2011, 07:39 AM   #38
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The carb and the gears are the best noticeable improvements for sure without hurting reliability. the only time I would do a piston upgrade would be when the bore is beyond spec.

You have about 50,000 more miles to go before you need that..
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Old 01-05-2011, 08:53 AM   #39
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Personally, for the desert I'd skip the NX 2nd gear - I don't think it would be of benefit to you and it is quite a lot of work to install. I'm sure it would be of significant benefit if you rode a lot of tight terrain with frequent first-second gear shifts.

I'm not expert on the 650L, though I have ridden one a fair bit over the years. Most honda XRs respond quite well to a fairly mild performance cam (oft sold as "stage 1").

I would do the XR400R oil cooler first off, the performance mods after. If it were my bike and I were after more performance I think I would end up with a mild cam and moderately increased compression at stock bore size (but XR400R cooler and big fin head first). Realistically, I'd change out for an XR650R as the cost is the same (at least in the states). In fact, I did just that
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Old 01-05-2011, 02:28 PM   #40
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Realistically, I'd change out for an XR650R as the cost is the same (at least in the states). In fact, I did just that
You are right...if not for the fact that I have spent already a lot on this and the engine is brand new...

Ciao

Nic
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Old 01-05-2011, 02:29 PM   #41
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Any advice regarding carbs?

Mikuni VS Edelbroke

Ciao

N
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Old 01-05-2011, 02:38 PM   #42
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Where the hell do you live ?The weather sucks here we've been ice racing on the lakes already.
Yeah.Moncton,New Brunswick..up north in our province is bad,,but we kinda have a microclimate here that is generally nicer than most cities...we got hit bad last year with snow every few days.......but that`s unusual nowdays..it`s supposed to go to +1 celcuis this week with a low of -1 celcuis........right at the freezing point..

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Old 01-05-2011, 02:46 PM   #43
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Any advice regarding carbs?

Mikuni VS Edelbroke

Ciao

N
I would get the eddy for the kind of riding you'll be doing, it's simple to tune and you can find them used like new for 200 to 250.....
That's really all you need is either an XR650R carb or a pumper for a little better performance.
The eddy bolts right on with no modifications.
17E needle at 15 clicks from full rich, that's all there is to it.

The Micky is more difficult to tune if you're a novice bike wrench, if you're not a novice wrench than buy the Micky.
I think you would be more than happy with just a carb update.

I still like the eddy though for quick jetting changes.
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Old 01-05-2011, 02:52 PM   #44
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Any advice regarding carbs?

Mikuni VS Edelbroke

Ciao

N
What about a Keihin FCR........you can buy used FCR pumper carb on ebay quite often that is next to new for the price of the other non-pumper carbs...i won`t recommend a Edelbrock carb as i know a guy that had 2 on his XR650L that had problems...he now has the carbs in a bucket in the garage...and is using an FCR.........I also know quite a few people that found tuning the Mikuni a problem and gave up on them too......

This doesn`t mean you will have a problem with those carbs,,they may work great for you........but i do not recommend them to anyone anymore unless they are very good at carb tuning......the FCR seems easier to jet and set up properly..and i know a few people that can suggest jetting and needles for this bike...

Now cyclewizard i see recommends the EDDY........if he recommends it and obviously can help you jet it,then you can go with that...it`s extremely important in my mind to have someone knowledgeable help jet a non-OE carb unless you like frustration..i still like the FCR from the people i know...

B
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techforlife screwed with this post 01-05-2011 at 02:57 PM
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Old 01-05-2011, 02:56 PM   #45
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What about a Keihin FCR........you can buy used FCR pumper carb on ebay quite often that is next to new for the price of the other non-pumper carbs...i won`t recommend a Edelbrock carb as i know a guy that had 2 on his XR650L that had problems...he now has the carbs in a bucket in the garage...and is using an FCR.........I also know quite a few people that found tuning the Mikuni a problem and gave up on them too......

This doesn`t mean you will have a problem with those carbs,,they may work great for you........but i do not recommend them to anyone anymore unless they are very good at carb tuning......the FCR seems easier to jet and set up properly..and i know a few people that can suggest jetting and needles for this bike...

B
gawd damnit I forgot the FCR, that's by far the best carb on the market.
Get that one if you can afford it.........jezze I had another brain fart thanks TFLife.......
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