T
timgs850
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1980 gs 850. To add a vance hines 4:1, and a k&n stock air box filter, what are the jetting changes ? (michigan)
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'80 gs 850 vance & hines 4:1 and stock air box k&n filter add on.
On my 82 GS850GL, with the exact same combination, it goes like this: Main jet increased from 115 to 120 and the needle is raised by replacing the stock plastic spacer with 3 metal washers. The combination was put together by Bill (chef1366) and has worked out great.
OK, I understand, but it just seems like a lot of extra $$$ when the components I gave works great for the combination that was given. Just saying that a DJ kit is not always the only, or sometimes even the best, solution. Now if pods were involved, then I'd be going a totally different route.
Ray,
Agreed that the DJ kit offers a lot more adjustability. I understand what you're saying about that, but this particular combination of components is a piece of cake. Been done so many times that it's like clock work. Now if the setup was some other more obscure combination of components then I'd say jump on the DJ kit for sure. Just didn't see the NEED in this case. I was just trying to save the OP the cost ($95+) for the kit when 4 120 mains and a pack of washers will set you back a whopping $20. I'm riding on the exact same combination with beautiful response and great mileage.
Tim, either way you go just make sure you do a thorough job of cleaning the carbs before you start the modifications.
Agreed that the DJ kit offers a lot more adjustability. I understand what you're saying about that, but this particular combination of components is a piece of cake. Been done so many times that it's like clock work. Now if the setup was some other more obscure combination of components then I'd say jump on the DJ kit for sure. Just didn't see the NEED in this case. I was just trying to save the OP the cost ($95+) for the kit when 4 120 mains and a pack of washers will set you back a whopping $20. I'm riding on the exact same combination with beautiful response and great mileage.
Tim, either way you go just make sure you do a thorough job of cleaning the carbs before you start the modifications.
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