XJ550 Blaster

[79xs]

this thing is bas ass. tell me where i can get one of those 50t back sprockets!!

Parts Unlimited. (see the link below) Yamaha was nice enough to use the same sprocket on a lot of motorcycles too. So that 50 tooth is really a cross reference to a dirt bike. They list up to a 52 tooth for most Yamaha quads. Any dealer should be able to order it. It doesn't have to be a Yamaha dealer. Are you sure you want a 50T?

http://www.parts-unlimited.com/part/getItemDetails.do?partIds[]=201806
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[mmajay]

How much did the 50T sprocket help the street bike gearing out??

 

[88' blaster]

Parts Unlimited. (see the link below) Yamaha was nice enough to use the same sprocket on a lot of motorcycles too. So that 50 tooth is really a cross reference to a dirt bike. They list up to a 52 tooth for most Yamaha quads. Any dealer should be able to order it. It doesn't have to be a Yamaha dealer. Are you sure you want a 50T?

http://www.parts-unlimited.com/part/getItemDetails.do?partIds[]=201806
.
.

id imagine that would pull alot of power

 

[79xs]

How much did the 50T sprocket help the street bike gearing out??

No test drive yet. My testing field was plowed before winter. Plus its still really muddy outside.

 

[xKroniK13x]

id imagine that would pull alot of power

I'd say way too big for a stock engine.

 

[79xs]

Below is a start to my new harness. Lower left is my new fuse box. It's always useful to cut a harness out of an old car before it's send to the scrap yard.

 

[79xs]

Building the new harness is going well sofar.

 

[1995blaster]

hey i think ends and the little heat shrink stuff is expensive for a small amount at like auto zone so i went to harbor freight if you know what that is there ends are actually good and i got a set of 500 for like 8 bucks

 

[79xs]

hey i think ends and the little heat shrink stuff is expensive for a small amount at like auto zone so i went to harbor freight if you know what that is there ends are actually good and i got a set of 500 for like 8 bucks

Thats where I got the heatshrink from. The crimp terminals are from a site called Mike's XS. Its the same spec hardware Yamaha uses to make their bike harnesses. They work a lot better than the standard crimp terminals you can buy at a hardware store.

 

[79xs]

Small update. Got the battery all setup. Also used the airbox cover in a new way.

 

[79xs]

The new harness tested good. I hooked up just enough to start it and test the alternator.

 

[79xs]

Got the voltage regulator/rectifier all sorted out.

Ignition box and battery

Cover

 

[sicivicdude]

You have far too much time on your hands but do some TOP notch work

 

[79xs]

You have far too much time on your hands but do some TOP notch work

Thanks. It's really only a full afternoon of work (time wise).. I only work on it when I need to relax.

 

[79xs]

Yes..the build that never ends.

I finished making the adapters for my "quiet" mufflers. Everything went pretty well.

 

[xKroniK13x]

Hows it sound now?

 

[79xs]

Hows it sound now?

Not bad. I might keep them on there full time. I got some upperend sounds going on. You can hear near the end there. The timing chain is fully adjusted so i'm going to pull the motor out of the frame and see if something is up with the valves or timing chain tensioner.

 

[xKroniK13x]

Not bad. I might keep them on there full time. I got some upperend sounds going on. You can hear near the end there. The timing chain is fully adjusted so i'm going to pull the motor out of the frame and see if something is up with the valves or timing chain tensioner.


YouTube - Yamaha Blaster 550 quit mufflers

I think it sounds very nice, might as well just keep them on. You like the power it is giving you?

 

[79xs]

I think it sounds very nice, might as well just keep them on. You like the power it is giving you?

I didn't get a chance to ride it. The motor came out to shim the valves and replace the valve cover gasket. I also had a tick so wanted to check all the cam bearings. Everything looked good. 5 out of 8 valves will need to be re-shimed (tight). The motor has close 19,000 miles on it (18,800 miles on the speedo when i took it out of the motorcycle) so i'm thinking it was due for a valve adjustment.

 

[79xs]

It seems like my tick/knock was caused by the hydraulic primary chain tensioner. I guess this motor is known for that chain slap sound at low RPM. That explains why I didn't hear it until after I synced the carbs. I was never able to have it idle below 1500 until after the sync. Anyways, I have 7 out of 8 valve shims installed. Shim #8 will have to wait until next week due to an error in my math.