2004-2006 F4i -1 sprocket instal
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2004-2006 F4i -1 sprocket instal
Alright, so I posted a question up here last week about changing the front sprocket and got a few requests to do a write up, so this is my first newb-ish attempt at a write up, please limit the flaming...
This Saturday I bit the bullet and dove head first into going -1 on the front with a vortex sprocket.
The actual process of changing it is a total of maybe 15-20 minutes.
- You do NOT have to take off the fairing
- You do NOT have to remove the shift linkage
-you DO have to loosen the rear axle, but only in order to tighten the chain after the install is complete, because the smaller sprocket obviously means more slack in the chain.
- first things first, pull the 3 vent hoses out of the way, they come out of their little "bracket" quite easily, fold them up out of the way for now.
- Next there are two bolts to remove on the front sprocket cover. Once these are out, the plastic cover will pullstraight off towards you, there is also a metal do-dad that appears to take the role of a gasket, don't lose it.
-now, find somethinglong, hard, and malleable, I used a piece of PVC pipe, but something like a wooden broom handle willwork as well. Use this like you would if you were "that kid" that used to throw a wiffle ball bat through your neighbors spokes on hisbike. The desired result isto prevent the rear wheel from spinning by using the swing armto stop the spoke, rather than cranking on the transmission if it were put into gear.
- Now break loose the nut holding the sprocket on. A nice long ratchet and a BFH to shock it loose works really well. Remove nut and washer.
- At this point you can wiggle off the sprocket. I did not have to loosen the chain tensioners, but it may be different per each application. But some strong fingertips and a little wiggling will get it off.
- I got held up here, because I noticed the rubber cush on the stock sprocket, and the lack of said object on the new sprocket. I attempted to pry off the rubber to put it on the new one, only to notice that the geniuses at Honda somehow managed to mold the rubber ONTO the sprocket... so you can’t pry it off. I continued to go around the whole thing with an exacto, but all the little connecting tabs, and attempt to put them on the new sprocket, only to find it didn't fit, nor was it necessary. So now that you wasted time reading this, put away the stock sprocket.
- This is a little tricky with a tight chain, but you can now put on the new sprocket. Put the chain on the sprocket then line up the sprocket with the drive shaft, get it started, then tap tap taperoo with a rubber mallet to get it all the way on.
- re-install the bolt with the large washer onto the drive shaft, and crank to stock torch setting (not sure what it is, so I’m not going to guess and be wrong)
-now tighten the chain according to the manual's specs, reinstall the sprocket cover, including the little metal "do-dad" replace the 3 vent tubes into their plastic bracket, and go take it for a test ride. Make sure everything feels tight and you don't have any awkward sounds or shimmies.
feel free to add anything to this if you see that I missed something!
This Saturday I bit the bullet and dove head first into going -1 on the front with a vortex sprocket.
The actual process of changing it is a total of maybe 15-20 minutes.
- You do NOT have to take off the fairing
- You do NOT have to remove the shift linkage
-you DO have to loosen the rear axle, but only in order to tighten the chain after the install is complete, because the smaller sprocket obviously means more slack in the chain.
- first things first, pull the 3 vent hoses out of the way, they come out of their little "bracket" quite easily, fold them up out of the way for now.
- Next there are two bolts to remove on the front sprocket cover. Once these are out, the plastic cover will pullstraight off towards you, there is also a metal do-dad that appears to take the role of a gasket, don't lose it.
-now, find somethinglong, hard, and malleable, I used a piece of PVC pipe, but something like a wooden broom handle willwork as well. Use this like you would if you were "that kid" that used to throw a wiffle ball bat through your neighbors spokes on hisbike. The desired result isto prevent the rear wheel from spinning by using the swing armto stop the spoke, rather than cranking on the transmission if it were put into gear.
- Now break loose the nut holding the sprocket on. A nice long ratchet and a BFH to shock it loose works really well. Remove nut and washer.
- At this point you can wiggle off the sprocket. I did not have to loosen the chain tensioners, but it may be different per each application. But some strong fingertips and a little wiggling will get it off.
- I got held up here, because I noticed the rubber cush on the stock sprocket, and the lack of said object on the new sprocket. I attempted to pry off the rubber to put it on the new one, only to notice that the geniuses at Honda somehow managed to mold the rubber ONTO the sprocket... so you can’t pry it off. I continued to go around the whole thing with an exacto, but all the little connecting tabs, and attempt to put them on the new sprocket, only to find it didn't fit, nor was it necessary. So now that you wasted time reading this, put away the stock sprocket.
- This is a little tricky with a tight chain, but you can now put on the new sprocket. Put the chain on the sprocket then line up the sprocket with the drive shaft, get it started, then tap tap taperoo with a rubber mallet to get it all the way on.
- re-install the bolt with the large washer onto the drive shaft, and crank to stock torch setting (not sure what it is, so I’m not going to guess and be wrong)
-now tighten the chain according to the manual's specs, reinstall the sprocket cover, including the little metal "do-dad" replace the 3 vent tubes into their plastic bracket, and go take it for a test ride. Make sure everything feels tight and you don't have any awkward sounds or shimmies.
feel free to add anything to this if you see that I missed something!
Even cell-phone camara's do alright. But otherwise, nice write-up!
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Joined: Jul 2008
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From:
i did the -1 +3 on my f4i i love it but tops out at 160. but love it for the wheelies alot easier than stock i can do 2nd gears wit no problem 3rd sit downs also and wen the gas is low 4th gear stand ups. im mostly going off of 3rd gear its alot easier to find the bp.
