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52K views 302 replies 17 participants last post by  Steve.k 
#1 ·
Im wondering with the 705 kit ,pipe can and updated cams this boosts the klr to nearly 50 rwhp. That's almost the same as a heavier versys or vstrom at rear. Think those bikes mid 60 flywheel. So with my weight 195 I should be close to a 220 lb rider and the extra weight of other two style bikes. Or is the klr still a little hp handicapped?
 
#204 · (Edited)
We raced triple rotax snowmobiles. Those things so smooth the power delivery was crazy.As the cc goes up they need counter balance. On two stroke triples on snowmobiles the never ran balance shaft till 1000cc. Artic cat. Doo never had on 809.Nor on 800cc twin. I have 872 twin no balance shaft however my 1000 twin had.
 
#205 ·
Steve.k,
Please refrain from comparing/confusing the issues of KLR650's & motorcycles in general with two strokes & snowmobiles like too many of the FB & Adv Rider sites allow.
 
#209 · (Edited)
#208 · (Edited)
They do require them on big bores. Anything around 500cc per cylinder.You don’t usually see counter balancers on 800 cc triples or 4 cylinder bikes. Big twins usually.Or like a big cylinder klr. Here good explanation https://www.bikesmedia.in/reviews/motorcycle-engine-counter-balancers-all-you-need-to-know.html
 
#210 ·
Any single cylinder will benifit from counter balance shafts because of the pulses on a 360* firing engine. The early 250-300cc two strokes would vibrate and chug along and vibrate all the bolts out. Then take a 300 twin. Zero vibration cause of the 180* firing. Way less pulses. Bikes are no different they were trying to eliminate the heavy pulse. When sleds started to get the bore size up they started to use shafts but all the mfgs went back to smaller bores and ported them differently to make the same power.
 
#211 ·
Any single cylinder will benifit from counter balance shafts because of the pulses on a 360* firing engine. /QUOTE]
I can't recall ever loosing a bolt from vibration on my KX500.

But It has cracked the exhaust mounting tab near the cylinder of the FMF Gnarly Gold Series expansion chamber even tho it is a Rubber Damped Mounting.

But you best keep your feet 'Firmly Planted' on the pegs.
 
#215 ·
Well it pulls more air fuel mixture.....I don't see how it would change jetting requirements to any significant degree. I don't plan on rejetting from my KLX kit when I finish my 685 this winter. jetting has more to do with your airbox mods, and to a much lesser degree, exhaust than it does with a small displacement bump. Unless your jetting was off to begin with, I doubt there is any need. Now a 719 with a ported head and matching intake/exhaust mods? sure.

Maybe ChuckB can chime in as he's got AF results with various jetting combos on stock and BB KLR's.

2 cents,
Dave
 
#221 ·
Too funny; I lived near Morningside for a few years back in 1973. :smile2:

Yes, lots of good riding; Near Lumby, down Noble Canyon Rd. (Douglas Lk. Ranch Land) is/was the site of our local Hare Scrambles race for many years. My buddy Mark built much of the trail system there. Bear Creek ORV park on Kelowna's west side was also where we spent many, many days riding over the years.


Cheers,
Dave
 
#231 ·
I'm pretty sure that I will get the new Tiger 900. I have to wait until about mid-year. Next week I'm getting a new knee and will be recovering for a while. In March I'm going overseas for a couple of weeks, so I'll think seriously when I get back in April.
 
#232 ·
Tom did you ride the 800? Sounds like they a cool bike also. I’ll get some seat time on klr see if i like. My son maybe interested in coming along so maybe sell him klr over time. Tough for young guys to get ahead in Canada now with our gov. Really enjoy if he could ride along with us.
 
#233 ·
No, I haven't yet ridden the 800. I looked hard at one a couple of weeks ago and could have taken one out, but what they had left on the floor was not exactly what I was looking for. Had it been a 2018 or 2019 Tiger XRT I'd have ridden it home, but it was an XCS. I didn't see any reason to take their stuff out if I wasn't going to buy it.
 
#235 ·
I'm looking at it as a replacement for my RT. It's 50 pounds lighter than the RT.

Probably similar weight to my KLR, but more than 2X power.
 
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