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Old 01-30-2009, 11:58 AM   #1
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Default New OS Speed II thoughts?

I know this engine is new but compared to the standard Vspec, what are your thoughts?

Is it harder to tune? Does it lose tune easily?

Also is it worth the extra dough?
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Old 01-30-2009, 11:59 AM   #2
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Originally Posted by Slippery Dan View Post
I know this engine is new but compared to the standard Vspec, what are your thoughts?

Is it harder to tune? Does it lose tune easily?

Also is it worth the extra dough?
Same as older Speed, just lighter head and smaller carb inserts.
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Old 01-30-2009, 12:01 PM   #3
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Yes, but I guess what I am asking is whether the speed in general is worth it.

And is it finicky to tune?
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Old 01-30-2009, 12:08 PM   #4
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speeds are as easy to tune as the regular vspecs, which is very easy to tune, the old mag heads were a little bit of a issue because they wouldnt cool very efficiently, but the alum heads are simple and easy to tune, no matter if its the speed 2 or the original alum head
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Old 01-30-2009, 12:09 PM   #5
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The speed along with the standard v spec are among the most simple engines to tune, as well as the JX .21=OS based. If your not to concerned with a milled head get the alum none milled head, it is the same deal but less than the new one, very good motor, very easy on tune and runtimes, and they last much longer than a standard v spec in general when taken care of, buggy or truggy the motor haul's the mail all day and no monkeying around with needle settings.
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Old 01-30-2009, 01:28 PM   #6
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The other thing that is different on the new one is the idle screw is more assisible. Its on the other side of the carb on top.
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Old 01-30-2009, 01:35 PM   #7
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that was allready on the alum head speed verison 13897, thats when they changed to the js carb just before the new version
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Old 01-30-2009, 01:55 PM   #8
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that was allready on the alum head speed verison 13897, thats when they changed to the js carb just before the new version
I didn't know that.
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Old 01-30-2009, 10:49 PM   #9
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Quote:
Originally Posted by Slippery Dan View Post
Yes, but I guess what I am asking is whether the speed in general is worth it. YES

And is it finicky to tune? NO

Speeds are one of the cheapest motors out there. Yeah when you buy it they seem high, but if you take care of that motor it will laaaaaassssssst and perform. Plus, the ones I have seen have a decent resale value.
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Old 01-30-2009, 11:16 PM   #10
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just broke mine in today and it is great. the crank is a little different on the new one it has a little bit different mod to it, and the carb is a revised version of the 21j. all in all its fast, easy to break in, and really easy to tune.
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