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Old 05-04-2007   #7 (permalink)
dazco
Senior Member
SOTP Vintage Series
 
Join Date: Jun 2005
Location: L.A., Ca.
Posts: 5,619
Well, it's really a matter of "to each his own" isn't it? If we all felt the same as you there would only be one brand and model of bike ! On the other hand i am somewhat in agreement with you in that i am quite happy with the speedmaster. But 2 things.......it's a bit underpowered for MY personal preference even with the mods i've done, and second, the pipes provide me with that extra bit but at the cost of noise. I prefer quiet pipes and the bigger twin would allow me to keep it quiet while not only giving me as much power as the speedy with mods, but even MORE. Not to mention a stock bike is IMO almost always going to run and idle the best. If i left the speedmaster stock, then it would be much too underpowered for MY taste.

And yep, side gapped plugs going strong here too. On a side note tho, while they don't work quite as good, i started using iridium's side gapped because i found with normal plugs side gapped, the gap widens and goes out of spec too fast due to wear. I found the bike feeling a bit sluggish after a few weeks or even less, then would have to re-gap them as they'd become too wide. I even experienced the plugs not firing as consistantly and fouling. The iridiums are made of.........well, iridium ! A metal that wears far slower. In fact, i checked them after a couple thou miles and they hadn't changed at all, plus i never felt the bike start to lose any power or had any fouling issues. The iridiums when side gapped like i said seem to give slightly less improvment than standard plugs side gapped. But it's not enough to warrant the trouble of constantly removing and re-gapping the plugs which i had to do with standards.

Quote:
On 2007-05-04 08:34, 1962gypsy wrote:
I would like to ask you guys something, and I am not trying to start anything. I believe everyone should ride whatever bike or style of bike floats their boat. But I was wondering what the deal is with the "spiraling arms race" in motorcycle engine displacement? I mean really guys, your Speedy's are either 790 or 865, niether of which really strikes me as a puny engine. I know, I know, thats small in comparison to todays huge v-twins and the Rocket3. But really, don't you find that your Speedy's pull real hard, cruise at legal and even extra-legal speeds effortlessly? With bags one can easily load up and cross the nation w/o worry on a Speedy. Hell, I did it once on a 78 T-140 and the performance of it's 744 cc mill was never lacking. This is not putting down anyone who wants the supeersize version. Just wondering is all. Daz, my side gapped plugs are still firing away!
__________________
2005 Speedmaster, Neon Blue, Thunderbike pipes, snorkel removed, UNI filter, drilled airbox, 130 mains, TBS needles.(2 shims) And speaking of Speedmasters, HERE'S MINE
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