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Post by patrick on Jun 20, 2017 13:18:02 GMT 10
Hi Guys chasing some advise want to fit cobra or VH pipes to my 2015 VT750 shadow the problem is there is lots of confusing information around
1 I have decided that I will have the O2 sensors fitted to the pipes (can anybody recommend where in Vic I can have the pipes welded and sensors positioned? 2 as the bike is fuel injection do I have to fit an aftermarket ECU to Adjust fuel mixture ? 3 Do I need to change the air filter for more air ?
Original plan was to fit the pipes and O2 blockers job done HA HA so much for easy plans and low cost help with SMART advice would be appreciated as its starting to look like a hard and expensive exercise with may have to go into the too hard basket for now the costing is starting to look like this
Pipes $900 welding $100 ECU $500 Air filter $120 Dyno tune $200
Minister for finances has fallen over laughing and said bike is just fine the way it
Thanks Pat
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Post by Rayd on Jun 20, 2017 18:08:03 GMT 10
Don't have to get the holes done in pipes as you can by $23 eliminator from eBay to fool the computer . However I believe it's best to do it . Put a K&N sir filter in instead of oem filter .Will only need a fuel management system iff you dyno . V&H Cruzers I believe are best for the Shadow . Pipes sound awfully dear .. Any decent tig welder can do your pipes .Better than mig .Neater . Rest of tuning god bike the on board computer should fix up .Easier bring EFI fuel management than carby 👍🙂 Cheers Ray
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Post by shane1800 on Jun 20, 2017 20:40:44 GMT 10
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Post by SPINAL on Jun 21, 2017 7:52:26 GMT 10
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Post by shane1800 on Jun 21, 2017 19:37:28 GMT 10
This is the manufacturers recommendation
Yes, you should re-jet your carburetor equipped bike with a jet kit or re-tune your fuel-injected bike with a Fuel management unit when you add an aftermarket exhaust system. In order to pass increasingly stricter emissions standards, most modern motorcycles arrive from the factory in a borderline lean condition. This means that the air fuel mixture is set with less fuel and more air than the bike needs to perform at its full potential. By adding a freer flowing exhaust, or air filter or both, the air fuel ratio becomes even leaner. The motorcycle will exhibit conditions such as backfiring on deceleration, an uneven idle or surging at constant throttle settings. This lean condition can also make your engine run noticeably hotter.
In most cases, re-jetting (for carburetors) or adding an FI management system for fuel injected models will correct these conditions by optimizing the air-fuel ratio and allow the motorcycle to reach its performance potential.
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