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Post by islander on Sept 13, 2014 6:37:32 GMT -5
Just joined the forum and have found a lot of useful tips. I'm new to scooters as I just got a used 2009 Keeway Venus 50. The old owner forgot to mix oil into the gas and seized the piston. I bought a Hoca bbk, variator, and clutch as well as a new performance intake with CF reeds, a 21mm PWK carb, no rev limit CDI, performance coil, and an ebay performance muffler. Was looking forward to taking it out for a spin but will trying to tune the variator, the needle bearing gave out and seized the piston as well as gouging the cylinder wall. $165.00 down the tubes, just like that. Not wanting to spend another $165.00, I bought a bbk off ebay for $65.00 shipped and a wiseco bearing off of Amazon to prevent another major failure.
Considering all of the above parts and 7 gram sliders, what type of performance can I expect as well as top speed with a 198 lb rider? Forgot to mention the clutch is 1500.
Thanks for any input and it's great to be apart if this wonderful forum.
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Post by katastroff on Sept 13, 2014 7:00:19 GMT -5
Hi and welcome. Im no 2t expert but stick around im sure someone will answer you.  |
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Post by 90GTVert on Sept 13, 2014 7:03:35 GMT -5
 to the forum. Did you check out the crank and make sure the conrod and crank bearings all move freely and without much play? Would be a good idea after a seize, or really any time you have the top end off it doesn't hurt to check. If it's a decent pipe and the BBK is setup well and all is in tune you should be able to see 50MPH anyway and acceleration should be greatly improved from stock. |
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Post by 2TDave on Sept 13, 2014 7:04:42 GMT -5
Welcome! I think you'll need an expansion chamber pipe to see real top speed gains. I don't know what the gear ratio is in your Venus so a guess at top speed would be hard. With decent gearing maybe 50mph but with a good pipe 55+. You can check the gear ratio by marking the clutch and rear wheel and noting how many turns of the clutch it takes for the wheel to make a full revolution.
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Post by 90GTVert on Sept 13, 2014 7:13:32 GMT -5
My Venus was 11.08:1, but it's a short case so small diameter tires. I was doing ~9000RPM at 50MPH with a 90cc that peaked at 9000-9200RPM. Much beyond 50 I had to over rev.
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Post by 2TDave on Sept 13, 2014 7:21:42 GMT -5
I forget that at 140lbs I'm a feather weight and that's a big factor in top speed. There's a lot of wind resistance once speeds start getting up there too.
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Post by islander on Sept 13, 2014 8:00:37 GMT -5
Thanks for the welcomes and response. The crank and con rod are just fine. The exhaust is an expansion type and the Venus is a short case with 10" wheels. I really don't know how fast this scooter was stock as it was not running when I got it and since I had to replace the head, cylinder, and piston, I figured why not just build it up from the get go. At least now I have a ball park figure of what to expect for speed and perhaps make it a goal to obtain if my tuning should fall short. Thanks again for the input.
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Post by scooterpimp on Sept 13, 2014 9:12:45 GMT -5
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Post by Clank on Sept 13, 2014 13:52:47 GMT -5
:welcome:  |
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Post by Elektrey on Sept 13, 2014 15:02:55 GMT -5
 Welcome. Can't say exactly what your top speed is, but with 10" wheels it will be less than if you had 12 or 13". But better accel. |
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Post by Upgrayedd on Sept 13, 2014 16:51:54 GMT -5
welcome dude! we are fixing guamanian chicken tonight  |
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Post by craisin on Sept 14, 2014 1:56:34 GMT -5
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Post by islander on Sept 14, 2014 1:58:37 GMT -5
You talking about kelaguen or BBQ? I guess it really wouldn't matter, both are good eats.
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Post by twowheelinjim on Sept 14, 2014 8:58:10 GMT -5
Hafa Adai... Welcome. I absolutely loved living in Guam. I sometimes wish I would of never left. The folks here will definitely be very helpful and always glad to share information and enjoy your presence as well.
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