At long last....
At long last....
six weeks after I had dropped it off at the shop, (too) many incidents and costly discoveries later, I will be picking up my bike tomorrow. Another (virtually complete) rebuild has been done (new pistons and rings, almost new OEM cams in place of the Yoshis, new piston pins, new piston pin bushings, new crank bearings, 4 new exhaust valves and guides, new retainers and seals.....SOB had better stay together for a looooooong time after this.... $$$$$$$).....
Thanks. The riding season is rapidly coming to an end here but I hope to squeeze a few more rides in.
As for the shop that did the work, I went to Ami Sport in Laval. The have been doing all the work (except for the stuff I can do at home in my garage) since I bought the bike back in 2001. Great guys, great service.
As for the shop that did the work, I went to Ami Sport in Laval. The have been doing all the work (except for the stuff I can do at home in my garage) since I bought the bike back in 2001. Great guys, great service.
Thanks. The riding season is rapidly coming to an end here but I hope to squeeze a few more rides in.
As for the shop that did the work, I went to Ami Sport in Laval. The have been doing all the work (except for the stuff I can do at home in my garage) since I bought the bike back in 2001. Great guys, great service.
As for the shop that did the work, I went to Ami Sport in Laval. The have been doing all the work (except for the stuff I can do at home in my garage) since I bought the bike back in 2001. Great guys, great service.
Congratulations on getting your machine back.
thanks. I took it out for about 120 miles today (endless rolling on and off the throttle, trying to seat the rings properly; changed the oil afterwards -had a slight metallic colour to it). Everything seems fine, engine is uncannily smooth and pulls very well (very linear, no spikes or dips anywhere). The jetting is a bit off (have a dyno session scheduled for tomorrow PM to remedy that).
Will let you what the dyno says tomorrow.
cheers
Will let you what the dyno says tomorrow.
cheers
Season ending? Put some handguards on & get a tourmaster jacket & your season doubles.
You are using dino oil for break in right?
Mikstr did you leave the forum then triumphantly return or were you just quiet?
You are using dino oil for break in right?
Mikstr did you leave the forum then triumphantly return or were you just quiet?
Just been quiet for a while.... As far as extending my riding season, I can and do ride in all weather except snow (am a snowmobiler too so I have no shortage of cold weather gear). Living in Montreal, snow is an annual reality, a fact of life you can't get around. As for the break-in oil, it was indeed dino.....
The bike spent some time on the dyno yesterday and the results are as expected, that is to say the power comes on and falls off earlier (compared to Yosh Stage 1 cams).
In terms of actual results (note: with OEM cams and ignition box), the torque curve is impressively flat, climbing over 60 lb-ft at 3k rpm and staying there until 9800 rpm, peaking at 75 lb-ft at 6800 rpm (down from 76.6 at 7K with Stage 1 cams). Peak hp was down to 113 hp but, looking at the two dyno readings side by side, the drop (from 122 after first rebuild) is due to the torque curve tapering off earlier (example: new rebuild makes on average 4-5 lb-ft less from 8000 rpm on, hence the loss in top end numbers). On the other hand, the torque curve crosses the 60 lb-ft mark 600 rpm earlier with the OEM cams.
While less impressive for "bench racing", for street riding (where my bike spends most of its time in the 3.5-6.5k rpm range), the bike should now actually run even better and pull harder than before. I won't say I wasn't hoping for better peak numbers but the feel from the saddle is pretty good so far, especially considering how cool it was out (rode home at 5 deg C, or 40 F). Also, the bike is certainly not yet quite fully broken in either (will likely have to wait until next spring, however, given the projected dip in temps in the coming days).
I will try hooking up the HRC ignition box again at some point in the future (NOT for dyno running however!!!!!) to see if I can feel a difference from the seat of the pants.
cheers
P.S. The sound of the ignition cutting off during the dyno run was music to my ears, lol
In terms of actual results (note: with OEM cams and ignition box), the torque curve is impressively flat, climbing over 60 lb-ft at 3k rpm and staying there until 9800 rpm, peaking at 75 lb-ft at 6800 rpm (down from 76.6 at 7K with Stage 1 cams). Peak hp was down to 113 hp but, looking at the two dyno readings side by side, the drop (from 122 after first rebuild) is due to the torque curve tapering off earlier (example: new rebuild makes on average 4-5 lb-ft less from 8000 rpm on, hence the loss in top end numbers). On the other hand, the torque curve crosses the 60 lb-ft mark 600 rpm earlier with the OEM cams.
While less impressive for "bench racing", for street riding (where my bike spends most of its time in the 3.5-6.5k rpm range), the bike should now actually run even better and pull harder than before. I won't say I wasn't hoping for better peak numbers but the feel from the saddle is pretty good so far, especially considering how cool it was out (rode home at 5 deg C, or 40 F). Also, the bike is certainly not yet quite fully broken in either (will likely have to wait until next spring, however, given the projected dip in temps in the coming days).
I will try hooking up the HRC ignition box again at some point in the future (NOT for dyno running however!!!!!) to see if I can feel a difference from the seat of the pants.
cheers
P.S. The sound of the ignition cutting off during the dyno run was music to my ears, lol
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