03-18-2024, 07:46 PM
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#1 |
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Join Date: Mar 2024
Location: Wollongong NSW Australia
Posts: 4
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Hi from OZ
Hi all, thanks for accepting me
I'm from Wollongong just south from Sydney Aus. A few years ago I built this little hybrid for vintage endurance, useing a 78 PE 175 frame with an XR 200 motor. Since finding this site I plan to upgrade the motor to a 250 CB motor, apparently they use the same engine mount layout as the XR motor. I've also read you can liven the CB motor up by changing the carb to a 30mm PKW and using a 4° offset magneto key. Am I correct with these mods ?, any input greatly appreciated. Thanks Mark |
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03-18-2024, 08:08 PM
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#2 |
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Moderator
Join Date: Jul 2010
Location: Elburn, IL
Posts: 5,759
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Hiya.
I've been to Wollongong. 21 years ago. Cool bike.
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Cheesy ______________________________________ 07 Hi Bird Enduro-Flown the Coop 07 Ural Gear Up 79 Honda CX500 77 VeloSolex 4600 V3 73 VeloSolex 3800 I'm making this up as I go.-Indiana Jones Telling me something 'is for my own good', is a fast way to a fat lip.-Me I don't even care about my own problems, why should I care about yours?-Quote on one of my favorite t-shirts |
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03-19-2024, 08:07 AM
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#3 |
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Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,533
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Welcome aboard!
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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03-19-2024, 12:01 PM
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#4 | |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,193
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Quote:
The CB250F (zongshen 172-FMM, 249cc, 20 hp) would be a feasible upgrade but you already have an ancestral engine in that frame. If it is an old engine with a played out top end/bottom end, and loose transmission, then it might worth the effort. I see you have adapted an upper engine mount already. I am not sure about the exact placement of the lower mounting bolts, and there could be slight output sprocket alignment to deal with. If so, this could be dealt with using shims on the mounting brackets. I think you were suggesting the upgrades for the CB250, not the XR200, but the performance mods would liven up the 200 as well if it's in good shape. Either way, you clearly seem to have the fabrication skills needed.  Welcome to the site 
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-2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it |
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03-19-2024, 12:22 PM
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#5 |
Join Date: Jan 2024
Posts: 85
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Welcome! Really interesting build!
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Templar X 250 Vespa GTS 300 Vespa ET4 150 Triumph Legend TT 900 |
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03-19-2024, 08:35 PM
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#6 |
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Join Date: Mar 2024
Location: Wollongong NSW Australia
Posts: 4
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 thanks guys
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