:: Yamaha Virago XV Forums That Rock!!! Tech Help Rear cam (SOLVED)

#1:  Rear cam (SOLVED) Author: connormcmanus Post Posted: Thu Aug 06, 2009 1:10 pm

Is it possible to remove the rear camshaft without taking the engine out of the frame? I want to do this as easily as possible because I don't have a lot of time to work on my bike as she's at my brother in laws garage over and hour away from me so I only get about 1 weekend a month up there and usually only a couple of hours to actually work on her. I don't have a new rear cam yet, but mainly I just want to see if I need one because as soon as I replaced the front cam and rockers, cranked her up and the rear started making the same clicking noise. The front was a breeze to replace save one very stubborn rocker shaft. I'm hoping the rear can be the same. I only paid $500 for her knowing the front cam was bad, by brother thinks I should just buy and evo engine and build a bike around it or just outright buy an 883 sportster, but I told him there was more to the rago than just having a cheap fixer upper, plus why would I poor thousands of dollars towards a bike I don't need when I can put a few hundred into a good bike I already own and make her better? Anyways, any help would be appreciated, and if anyone knows where I can get a good cheap new or used rear cam, preferably out of a newer (85 or so up) bike so I don't have to worry about getting a crappy made cam like mine was.

Last edited by connormcmanus on Wed Jun 30, 2010 2:41 pm; edited 1 time in total

#2:  Re: Rear cam Author: terrys920 Post Posted: Thu Aug 06, 2009 5:48 pm

yes it is possible to replace rear cam like you did the front on my 920 it was caused by an oil filter in backwards by po. the same things hold true for the rear as the front . in replacing the rockers its easyer to do it after the cam is out. you are replacing the rockers? i got mine at a salvage yard here in illinois for about 150 with shipping if you want i can get you his number

#3:   Author: grazingazer Post Posted: Thu Aug 06, 2009 5:53 pm

when you replace the rear cam make sure it has the number one stamped or cast on it...the front and rear cams are different and the bike will not run with a #2 cam in the rear cylinder...the rear cylinder is #1 cylinder on our viragos...use the T mark to time the cam and adjust the valves on the rear cylinder...good luck

#4:   Author: connormcmanus Post Posted: Thu Aug 06, 2009 8:34 pm

i'm not sure if i'll have to change rockers or not but i already have a good set of rockers and shafts that i got from a guy on ebay for next to nothing for all 8 pieces.

#5:   Author: scootermcq Post Posted: Thu Aug 06, 2009 9:22 pm

I hope they are labeled for position. When I replaced mine the first time, I did not know what position they were in previously. I did not think it would matter, because the rockers & shafts are interchangeable. Turns out that is only when NEW. They get married to a particular cam and in their particular position (either exhaust or intake). They would only hold the proper clearance for about 3 days and then the lash would grow.

I changed them with another set I pulled from a 750 and labeled them in zip lock bags as I pulled them. They held lash for about 5,000 km before I had to adjust it again (and that is hopefully because they were getting used to their new home and will last longer now)

#6:   Author: connormcmanus Post Posted: Sat Jun 12, 2010 1:25 am

If I'm lucky and quick, I've found a complete head on ebay for $50 from a bike that had 2000 miles on it so if I can score that then I'll have a complete set of cam, bearing, and rockers/shafts that are already mated :)

#7:   Author: Matthew Post Posted: Sat Jun 12, 2010 3:42 am

Id do the cam bearing upgrade while your in there, search

#8:   Author: totallyredvirago Post Posted: Sat Jun 12, 2010 7:14 am

if you win the head... pull the cam out and make sure it has a #1 on it......dan

#9:   Author: connormcmanus Post Posted: Sat Jun 12, 2010 10:13 am

oh it's coming out, I plan on pulling mine and replacing, I don't have the space (apartment complex) to take her apart enough to replace the entire head, otherwise I'd buy up both heads and replace both :)

#10:   Author: connormcmanus Post Posted: Wed Jun 30, 2010 9:59 am

OK, so I missed out on that one cam while waiting for funds. Question, I know that most cam's from other models, 700 1100 and such interchange yes? What about the 535? I found an excellent 535 cam for $40 shipped.

#11:   Author: connormcmanus Post Posted: Wed Jun 30, 2010 10:43 am

I've checked sku#s and the only difference is the 535 starts with 22u and the 750 starts with 4x7, but both are 12171-01-00. These were looked up on babbits and they are the only ppl i've seen using the new number for the 82. The shaft in the listing looks like it should and has #1 on it. Here's the link:

#12:   Author: smprince Post Posted: Wed Jun 30, 2010 10:44 am

You need the rear Cam? I have a set of heads from a 700, i was going to get them reground but if you are still looking for one I could pull the head apart, send me a pm.

#13:   Author: connormcmanus Post Posted: Wed Jun 30, 2010 10:53 am

Thanks smprince, pm sent :D

#14:   Author: connormcmanus Post Posted: Wed Jun 30, 2010 2:40 pm

Thanks again smprince. Marking as Solved

#15:   Author: connormcmanus Post Posted: Wed Jun 30, 2010 4:11 pm

Well, an update. I changed the oil today and discovered, of course, the PO put the filter in backwards. I learned a lesson today, I gave him the benefit of the doubt as he was an engineer, but that didn't mean maintenance on a motorcycle would be easy to him. Don't get me wrong, he's a great guy, and he keeps a whole hospital running, but I've learned that just because you're good at what you do, doesn't mean you'll be good at something similar.

#16:   Author: smprince Post Posted: Wed Jun 30, 2010 5:03 pm

Found the right head.. I will ship it out tomorrow.. Cam looked good.. and I made sure to send the #1.

#17:   Author: smprince Post Posted: Thu Jul 08, 2010 11:30 am

connormcmanus, did you receive the cam? I was told you should have gotten it on the 6th or 7th. I just want to make sure it went through. Good luck with the bike. Tech Help Rear cam (SOLVED)

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