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Discussion Starter #1
Here's a chance for us to list all the modifications to the 610 both major and minor for helping when doing our own wrenching and to make suggestions for better engineering. Let's add pics when possible and please don't hijack this thread with beer consumption, tail chasing, hooligan stories....keep those where they belong in the "Lobby". That way we can keep this simple, use less bandwidth and make referencing a whole lot easier.
 

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For starters; the K&N RU-3190 definately fits better than the RU-1770. The oversize inlet allows for easier molding to the carb, only some trimming is needed to better angle the neck.

 

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Discussion Starter #3
Next I found that a simple garden hose washer fits the plug-cap end perfectly and should help to keep water out of the plug hole.

 

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From Advance Auto I found this little gem of a vacume right angle piece that when trimmed allows the carb bowl drain line to clear the top of the starter motor.

 

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I believe I might have had some air entering the mid-pipe causing a de-celerate poping, hope this cures it. I might also be jetted alittle lean and this will at least rule out the air-leak.

 

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hot damn! great thread goose.
i have nothin to offer just yet
tho. but cheers man, you rule!
 

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How about a lighter battery, anyone done that? I had a Yuasa YTZ7S sitting on the bench for my other project (that'll wind up not being done till the spring). I thought I better hook it up to something and use it instead of just trickling it.

To my horror I found the stock 610 Varta battery is larger than the battery on my RC51, a bike not well know for it's light parts!

A little bit of custom foam cutting and voila the small battery is in and secure and it turns over without the stock laboured, maybe I'll start, maybe I won't sound.
 

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Removal of smog stuff, compliments of speedzilla.

1. Disconnect the carb vent lines/fuel lines and remove the tank and the headlight unit.

2. Take a look at what goes where... where the hoses go.

3. Remove the manifold that is zip tied by the ignition switch

4. Remove the small cannister attached to the lower triple

5. Disconnect the hoses that connect to the pink carb vent lines and reroute the vent hoses

6. Disconnect the hose from the nipple on the intake side of the head, near the carb boot and plug it up with an automotive vacuum plug

7. Remove the large cannister and attached hoses.

8. Install one of those little aluminum no spill fuel vent fittings to the top fuel vent nipple on the tank.

9. Reinstall the tank and headlight and you're good to go. Don't forget to plug the nipple on the side of the head. It is a vacuum line and will suck air otherwise.
 

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Discussion Starter #10
Danke said:
How about a lighter battery, anyone done that? I had a Yuasa YTZ7S sitting on the bench for my other project (that'll wind up not being done till the spring). I thought I better hook it up to something and use it instead of just trickling it.

To my horror I found the stock 610 Varta battery is larger than the battery on my RC51, a bike not well know for it's light parts!

A little bit of custom foam cutting and voila the small battery is in and secure and it turns over without the stock laboured, maybe I'll start, maybe I won't sound.

I weighed the stocker from the 610 and it's just under 10lbs. I've done a search and come up with nothing less the 8lbs with the proper voltage and amperage. To me it's not worth the $60. or so for less than a two pound difference. The search continues however.

Also I am now running without the cooling fan. The weight of that did not justify the occational need for it....actually mine has never even come on.
 

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Goosedog said:
Also I am now running without the cooling fan. The weight of that did not justify the occational need for it....actually mine has never even come on.

you did it....
screw it, i rode in
tha NM heat all summer
an nothing. i'm ditchin
mine too...
 

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Goosedog said:
I weighed the stocker from the 610 and it's just under 10lbs. I've done a search and come up with nothing less the 8lbs with the proper voltage and amperage. To me it's not worth the $60. or so for less than a two pound difference. The search continues however.

Also I am now running without the cooling fan. The weight of that did not justify the occational need for it....actually mine has never even come on.
If it was just about weight I'd agree but it cranks better too. Maybe not something to rush out and get, more to fit into the frame when the stocker packs it in.
 

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Discussion Starter #15
This is a quote from speedzilla member 'just riding along' as a response to my battery question.

"Here's the lowdown on the battery with thanks to the source, ROGUE (where the elite meet)

Battery Type: Yuasa YTZ7S
Voltage: 12
Capacity: 6
Dimensions: 4 7/16" x 2 3/4" x 4 1/8"
Weight: 4.6 lbs.
Metric Dimensions: 113mm x 79mm x 105mm

Amps: 0.6
C.C.A.: 130

It's meant for a WR450 I do believe and think there are others on SMJ running with it."


Anyone else here using it? This battery would be 5.4lbs less than stock, that's enuf reason for me.
 

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That's me on Zilla by the way. I bet if you mooch around the dregs (Yamaha) some should have the $ on the battery.

I'll shoot a pick of my extra foam added to the battery box to snug the smaller battery in.
 
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