Need some direction here,
I have a sorry wee 90 that is in dire need of attention, I build an engine that will scare the bejesus out of me. First things first is to convert to a 4 speed motor right? The question is will the 3 speed shaft hold a 4 speed box or do I need to source a newer 4 speed shaft? Also where abouts on the engine will I need to reinforce with welding? I was looking at a brand new 4 speed box from SIP till I saw the prices, so whats recommended? many thanks in advance.
Converting 3 speed to 4 speed smallframe
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bryansmudge
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- Joined: Mon May 17, 2010 2:21 pm
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The shaft is the same. How much is the conversion ? I may be able to help you.
Sponsors: Performance Tuning. Ve Uk. Scooter Center Koln. LTH . DRT
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Wayne Miller
- registered user
- Posts: 345
- Joined: Wed Jan 07, 2009 12:52 pm
- Main scooter: Vespa 50 Special (Rotax Proto)
- Location: Rothwell, Northants
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I do a SIP discount service on smallframe parts, I could do this item http://www.sip-scootershop.com/main/bas ... a=1&sort=0 for £120 plus £5 p&p for signed for courier delivery. Saves you about £15 if that helps mate?bryansmudge wrote:Need some direction here,
I have a sorry wee 90 that is in dire need of attention, I build an engine that will scare the bejesus out of me. First things first is to convert to a 4 speed motor right? The question is will the 3 speed shaft hold a 4 speed box or do I need to source a newer 4 speed shaft? Also where abouts on the engine will I need to reinforce with welding? I was looking at a brand new 4 speed box from SIP till I saw the prices, so whats recommended? many thanks in advance.
I can supply all nuts, woodruffs, gaskets and oil for the job. In fact I supply all of the parts that you need for you motor. If you want something to scare the bejesus out of you the why not have a falc
I dont currently have any in stock but the next batch is ready in about 10 days 
Send me a PM if you need my help to save some dough 
Stay tuned..............