Trying to get a few parts together for some regular maintenance that I'll be doing here shortly and have a couple of questions.

1. Plan on using Amsoil MC 10W-40 in it but would like to get some opinions on going with 20W-50 instead. I ride a bit in the winter here in Kansas so the 10W-40 seems good for that but are the engines quieter with 20W-50? 20W-50 still good for riding in the 20s?

2. Plan on going with NGK Sparkplugs P/N DPR7EA-9. Any others work better?

3. Need to change my fuel filters that have never been changed. Yamaha filters or something else?
P/N 1FK-24560-10-00 from Yamaha for the one by the fuel pump? The book also talks about another filter that requires carb removal but I can't find that P/N or even if it needs replacing. Ideas?

I have an 2003 Roadstar with 31K on it, any other ideas on what I can take care of to keep me occupied this winter?

Thanks for all the help guys!

Either oils good....I use 20-50 because I just like heavier oil in an air cooled engine..it also made it quieter...but I dont ride in the winter. Usually 40s is all I will see.
Spark plugs... I started using the iridium plugs 2 years ago....they still look new and I noticed a difference right away when I put them in. Bike sounded better as soon as I started it...youll get different opinions... but it was worth the money to me. They last forever, milage came up 2 mpg's. ...engine seems stronger. I guess cause its 'combusting' better.
I use yamaha fuel filter.....the one in the carb is just a screen at the gas inlet. Some guys pull them out for better flow. Mines still there. Havent had any problems...I suppose next time I pull the carb I might pull it...just to prevent a " clog on the road".

Could I get the P/N of the plugs from you? Thanks!

Iridium.... NGK DPR7EIX-9

If you have the extra cash go with the suggested irridium plugs but if no extra cash go with the std NGK's.

On the oil if you regularly ride in 20-30 deg weather/temps no way on 20-50 and yes the 10w-40 amsoil mcv would be a much better choice for cooler temps.

But if your bike sits outside in 20-30 deg temps another choice would be to run Shells full syn 5w-40 rotella that has 1300ppm zddp per Shell oil tech dept so it has the minimum zddp required to properly protact the R*'s FT cam & liftere R*.

The 5w base wt oil in the shell syn will be a little easier to spin over in 20-30 deg temps then the the 2x thicker 10w base wt oil in the amsoil.

Max air larger hi capacity battery-starter cables,optional hi perf 310cca battery,a battery maintainer to keep battery fully charged-warm in 20 deg temps can also help a R* fired up in 20-30deg F temps.

Thunder fire hi trq starter & warrior starter relay would be a great help getting a R* fired up in 20 deg f temps too.

Scott

Add stem bearings, grease fittings in the neck and fork oil and you got my winter project(s).

GP

I'm running the same as Blacrodie but I am in Texas and it stays warm down here. You can go with the 10W-40 in the winter and 20W-50 in the warmer months and do just fine.

My bike began to get hard starting when cold weather hit, I had the dealer change my oil for lighter oil. Starts just fine now. They use Yamalube though.
When I change back to summer oil I'm going as Scott suggested.

I have heard a lot of good things about the iridium plugs and I think I will give them a try just for kicks and giggles.

Don't look like I'm in a big rush since snow is on the car tops this morning. Bluk!

I use Amsoil 20 / 50 in Brithish Columbia and ride as low as freezing with no problems. I find my bike does not shift as smoothly with 10/40