Another Isolastic question.
- Thread starter MS850
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acadian
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The general idea is to lever the engine to the right (timing side) and take your measurement from the primary side... so if you're showing 12 thou this way, you should have 6 thou on both sides (in theory anyway). Just make sure you check at multiple point around the iso collar
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Thanks for the info!
Great straight answers, I'm a bottom line guy.
Although reading the ebb and flow of conversation on this forum are very interesting and helpful.
Every new bike I get I learn how much I don't know, that's fun part, learning. Other than riding (of course).
Great straight answers, I'm a bottom line guy.
Although reading the ebb and flow of conversation on this forum are very interesting and helpful.
Every new bike I get I learn how much I don't know, that's fun part, learning. Other than riding (of course).
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I'm at the same point. I'm not too sure how much shake/rattle/roll I should be expecting. I can see the engine vibrating in the cradle at start-up and at idle (~ 1100 rpm) but its smooth as can be on throttle while riding. I didn't bother with the measurements; far too fiddly for my liking. I just tighten the forward iso bolt 1/16 of a turn until it looks/felt right.
And it seems to be working which would say to any sane (read non-Norton) person; don't fix it. But I'd still like to know how much shake is too much.
BC
Toronto
71 Commando
68 TR6P
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Stillreel said:
That's not really the right way to go about it as pete.v already explained to you.
vernier-isolatic-adjustment-t12662.html#p152340
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My bike before adjustment at about 3500 rpm it wound start smoothing out, the sweet spot is about 4200
from what you said it would seem you are at least 500rpm higher when smoothing out than when Commando ISOs are set correctly, maybe you are too tight?
from what you said it would seem you are at least 500rpm higher when smoothing out than when Commando ISOs are set correctly, maybe you are too tight?
baz
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6 thou will be good ,i will be hung for this but i have vernier isos on mine including an extra iso under the gear box and another iso as a head steady and i just adjust them until they are tight and then back them off until the motor and transmission will go up and down ,the bike is not as smooth below 2500 rpm as a stock commando but i like it this way the handling is superb cheers bazMS850 said:
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MS850 said:
Took on test drive, the results, before below 3500 low frequency vibration now a higher frequency vibration. Above 3000 a slight vibration felt mostly in the foot pegs. The engine feels tighter, less movement. I'll live with this for now.
(On a side note, I had the Carb off and found a slightly plugged pilot jet, runs better at 0-1/4 throttle.
On another note the rt pea-shooter weld broke near header pipe. The weird thing is I ordered a new set of pea-shooters from Commando Specialties 3 days ago.I ordered new ones cause the chrome was bad.)
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