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bryan
i hate to disagree with you but be careful on raiders. On most raiders there was a factory recall http://www.geocities.com/coscaperformance/page5.html
if you had the recall done then the jetting will be different on the middle carb. the high and low jet wont be able to flow wenough fuel because the jets are smaller. with the 2.0 N&S it doenst sound like you had the recall done. personally I woudl rejet the carbs like this
115 high 105 low and the 2.0 N&S are fine but you can step up to a 2.5. ( I changed to 80 gram springs (silver color at least I tink they were 80 gram rated but they were sliver)Pop off ended up 15 PSI)thats what i did on my raider when i had the 38s and flame arresters. also get rid of the chokes and add a primer kit. if you add flame arresters make sure the filter adapters have a oil injection nipple. otherwise you have to take off the okld oil injector fittings from the air intake base. they come off with a pair of vice grips and twisting. now you have to remove the manifold and drill the outside turn ( facing the hull) not the inside turn. and then press fit the nipples in there. Dont worry I have a extra intake manifold for a raider ( my old one) that you can have cheap ( pay for shipping and its yours) if you screw it up. basically drill the holes slightly smaller and tap the fittings in. or you can jb weld them in the hols being careful not to plug up the oil injector hole. the reason for doing the oil injector fittings lower on the manifold instad of up high is because when you run the ski lots of the oil will get blown back out the air filters. In fact group K does this exact mod to the raiders. I wouldnt put the oil injectors up high like they were before jsut because of the blow back will take the oil and splatter it all over the place. also make sure that the #1 carb has a restrictor in the return fuel line. It will stop it from bogging and stalling. If it doesnt have a restrictor then jsut take the smallest high speed jet you can find. and shove it in the return line with a screwdriver ( thats what i did to mine) soem people will tell you to change to a different carb rejet set up but thats what worked for me.
I also went to pre mix on my raider. If you go to pre mix then still do the oil fittings incase you sell it and the other guy wants the oil injection, but plug them up with small rubber caps
let me knwo if you need anymore help on the raider
Rob
i hate to disagree with you but be careful on raiders. On most raiders there was a factory recall http://www.geocities.com/coscaperformance/page5.html
if you had the recall done then the jetting will be different on the middle carb. the high and low jet wont be able to flow wenough fuel because the jets are smaller. with the 2.0 N&S it doenst sound like you had the recall done. personally I woudl rejet the carbs like this
115 high 105 low and the 2.0 N&S are fine but you can step up to a 2.5. ( I changed to 80 gram springs (silver color at least I tink they were 80 gram rated but they were sliver)Pop off ended up 15 PSI)thats what i did on my raider when i had the 38s and flame arresters. also get rid of the chokes and add a primer kit. if you add flame arresters make sure the filter adapters have a oil injection nipple. otherwise you have to take off the okld oil injector fittings from the air intake base. they come off with a pair of vice grips and twisting. now you have to remove the manifold and drill the outside turn ( facing the hull) not the inside turn. and then press fit the nipples in there. Dont worry I have a extra intake manifold for a raider ( my old one) that you can have cheap ( pay for shipping and its yours) if you screw it up. basically drill the holes slightly smaller and tap the fittings in. or you can jb weld them in the hols being careful not to plug up the oil injector hole. the reason for doing the oil injector fittings lower on the manifold instad of up high is because when you run the ski lots of the oil will get blown back out the air filters. In fact group K does this exact mod to the raiders. I wouldnt put the oil injectors up high like they were before jsut because of the blow back will take the oil and splatter it all over the place. also make sure that the #1 carb has a restrictor in the return fuel line. It will stop it from bogging and stalling. If it doesnt have a restrictor then jsut take the smallest high speed jet you can find. and shove it in the return line with a screwdriver ( thats what i did to mine) soem people will tell you to change to a different carb rejet set up but thats what worked for me.
I also went to pre mix on my raider. If you go to pre mix then still do the oil fittings incase you sell it and the other guy wants the oil injection, but plug them up with small rubber caps
let me knwo if you need anymore help on the raider
Rob
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