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xs650 > > Motorcycle Systems > > Exhaust > > Mikes "stock" vs "commando" |
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Mikes "stock" vs "commando"
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jpowell Full Member
Joined: Sep 04, 2008 Posts: 193 Location: Cincinnati, OH 1978 SE(special)
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Posted: September 10, 2008, 9:13 pm Post subject: Mikes "stock" vs "commando" |
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My bike was laid down before I got it, and the pipes are pretty beat up on one side, and broke at the weld between the header and muffler on the left. I've been looking around for a whole new exhaust. Mikes had a replica for $450, and the "performance" commando for $299. I'd like to think the performance would be better, but have always been a believer in "you get what you pay for" anyone use either of these? Mine is a 78 special, so may be a bit different. also, with the commando, do I need to change my jetting?
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whynot2 Full Member
Joined: Jun 25, 2005 Posts: 56 Location: upstate new york
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Posted: September 25, 2008, 8:51 pm Post subject: Re: Mikes "stock" vs "commando" |
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I have posted several times about mike's XS replicas. I put a pair on my 1981 and changed the carbs with john's needles and the bike is my favorite out of my four. I have not tried his others, but I like the XS relicas so much I am going to buy another set for my 1980 SG and sell the BUBS. Greg
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xackley Full Member
Joined: Jun 22, 2008 Posts: 77 Location: Finger Lakes, NY
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Posted: September 26, 2008, 9:24 am Post subject: Re: Mikes "stock" vs "commando" |
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i bought the commando. The fit is good, and they look good and sound good.
As to performance, I would not re=jet your carbs until you have them installed and run some test.
They quiet down with some miles. I took the tuning bolt out of the mufflers the other day as it was sounding too muffled (and to test what removing the bolt did to full throttle at 4000+ rpm). Removing the bolt did help remove a slight stumble at 4200
_________________ Stock 1980 Special with a 78 engine, 1959 BMW R69
WANTED: BREATHER HOUSING FROM AN 80-83, SINGLE NIPPLE |
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: September 26, 2008, 5:20 pm Post subject: Re: Mikes "stock" vs "commando" |
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Our (UK)proper commando silencers (mufflers) dont have any baffles in them & sound great , those 'Mike' silencers look nothing like Norton items..
_________________ 1 running 650
2.5 bikes in bits,
no time,
gradually losing intrest... God help me... |
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motoretro New Member
Joined: Sep 27, 2008 Posts: 5
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Posted: September 26, 2008, 8:33 pm Post subject: Re: Mikes "stock" vs "commando" |
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whynot2 wrote: |
I have posted several times about mike's XS replicas. I put a pair on my 1981 and changed the carbs with john's needles and the bike is my favorite out of my four. I have not tried his others, but I like the XS relicas so much I am going to buy another set for my 1980 SG and sell the BUBS. Greg |
Are your Bubs the Commando style? Can I ask why you did not like them?
How much for the Bubs?
thanks,
otoretro
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whynot2 Full Member
Joined: Jun 25, 2005 Posts: 56 Location: upstate new york
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Posted: October 2, 2008, 9:32 pm Post subject: Re: Mikes "stock" vs "commando" |
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My BUB's are the commando style. There are the ones described in the "Minton Mods". They are also about 16 years old. They are loud, and I like to wear a full face helmet, and the noise is too much for me. Earplugs just make it worse. I don't know why. Performance wise they are great! As good as my '81 is with Mike's replicas, the '80 with the BUBs is better, faster, revs freer to redline. They sound fantastic on a hot humid summer evening after the sun goes down. I just can't deal with the noise everyday. Having said that they'll stay on the bike for a while. I've been riding the '80 since june of '89 and although I am going to change it, I'm not in a rush. Greg
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motoretro New Member
Joined: Sep 27, 2008 Posts: 5
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Posted: October 4, 2008, 6:52 pm Post subject: Re: Mikes "stock" vs "commando" |
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thanks for jogging my memory, I had a set of these on a 74 Commando and 79 Bonneville and they were very acceptable on noise. I put a set on my 78 Yamaha in the early 90's and they were noisy as you stated. Seems like either the inlet or outlet or both were larger on the 650 specific Bubs and header pipes were shorter leading to alot of BLAT.
otoretro
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