Yamaha RD350 Cafe Racer - Wrist Twisters
 
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post #1 of 19 Old 02-20-2008, 03:04 PM Thread Starter
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Yamaha RD350 Cafe Racer

Interesting craigslist ad I found today....

http://indianapolis.craigslist.org/mcy/579933316.html

Tell me something, since my knowledge of two-strokes is limited. The guy say "No stinkin' oil injection,removed pump and drive gear and installed block off plate from HVC"

How does the engine get lubricated then? I thought the oil injection pump mixed oil with the gas and that's how the lubrication system worked. Wouldn't you have to mix gas like a weedeater otherwise?

Wonder if he'd like to swap for my '68 BSA Thunderbolt in a basket?

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post #2 of 19 Old 02-20-2008, 03:13 PM
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Premix, just dump the proper amount of two stroke oil right into the gas

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post #3 of 19 Old 02-20-2008, 04:03 PM
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yep, premix.

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post #4 of 19 Old 02-20-2008, 04:36 PM Thread Starter
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Is that a common mod on old two-strokes? Does it have any detrimental effects?

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post #5 of 19 Old 02-20-2008, 04:43 PM
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If I remember correctly the early RD's had problems with the oil injector not always functioning properly causing engines to seize

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post #6 of 19 Old 02-20-2008, 05:15 PM
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Quote:
Originally Posted by voodooridr View Post
If I remember correctly the early RD's had problems with the oil injector not always functioning properly causing engines to seize
Yep.

The main drawback is when setting at a fuel pump without any premix oil. Kinda tough to get back home.

"Towards the end of the vid, it looks like she may have had a bafflectomy." - MarylandMike
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post #7 of 19 Old 02-20-2008, 06:42 PM Thread Starter
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What do you think about this bike? Looks cool, remember my brother's RD350 was a screamer, wonder if an old two-stroke would be worth the trouble though? Not sure if I like the mods, looks a bit too naked with the side covers gone, but I'm intrigued by it. Especially if he was interested at all in my BSA, which I'll probably never get around to restoring.

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post #8 of 19 Old 02-20-2008, 07:00 PM
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Older 2smokers can diffenetly have there problems. Carberation can be a challange if they have been Modified and the lwr end seals/crank seal are everything. Pipes and cumbustion chambers can clog but in good mech. condition they really get dwn the road. Nothing wromg eith premix but depends on other factors listed

YAAWZZU!!!

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post #9 of 19 Old 02-20-2008, 07:04 PM
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What is the BSA thunderbolt? single cc's just curious

I see you also have a 599 any chance the side covers would fit a 919, they make some really nice CF one's for the 599, also ever heard of someone considering a 599 complete front end swap to a 900??

YAAWZZU!!!

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post #10 of 19 Old 02-21-2008, 05:00 AM
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There is currently a RD350 listed in our craigslist for $1800.

We removed the oil injection pump from our Yamaha and use premix.
From what I have read on rebuilding these bikes, it is pretty well split between people using the oil injection and people using premix. We didn't want to take a chance on the system going out; by the time you know it, it is too late.
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post #11 of 19 Old 02-21-2008, 06:16 AM Thread Starter
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Quote:
Originally Posted by JEFFREY HERRELL View Post
What is the BSA thunderbolt? single cc's just curious

I see you also have a 599 any chance the side covers would fit a 919, they make some really nice CF one's for the 599, also ever heard of someone considering a 599 complete front end swap to a 900??
The BSA is a 650cc twin. Got it free from a friend after it sat in my shop for three years leaking oil on the floor. Decent condition, tank and fenders look good, turns over but doesn't run. Would definitely be a good restoration project, just haven't gotten around to it and kind of a foreign beast to me, definitely not a Honda.

The 919 and 599 side panels are not interchangeable, but there are nice carbon fiber ones available for the 919, see my pics below. Here's the thread where they were discussed: https://www.wristtwisters.com/forum/s...ht=side+panels

http://i196.photobucket.com/albums/a...s/DSC01067.jpg

http://i196.photobucket.com/albums/a...s/DSC01077.jpg

You can see the 599 side covers are a totally different design...http://i196.photobucket.com/albums/a...DSC01197-1.jpg


Don't know that anyone has swapped a entire 599 to 919 front end, or that you'd want to, I'm thinking the 919 suspension is superior. The 599 guages and headlight are cool though, our fellow wristtwisters mod-a-aholic, 9nineteen, swapped a 599 headlight to his 919, looks very great.
https://www.wristtwisters.com/forum/s...=599+headlight

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post #12 of 19 Old 02-21-2008, 07:06 AM
 
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Ive got a couple of the old Rds and man, are they a blast to ride ! Just fix the suspension and get some good sticky tires on it and they rail !As long as you check on the oil pumps they will work reliably, just get a Yamaha service manual and follow the maintance tables. The old 2strokes are fun, but, rember - these are old bikes that require diligence in maintenance, totally unlike the stuff we have now. It really stinks to hear people take bad about them simply becuase they wont maintain them - you must check your points, you must replace top ends etc. I can reccomend getting one of these as a play bike but, just rember to maintain them.

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post #13 of 19 Old 02-21-2008, 08:15 AM Thread Starter
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If it's still for sale when I get back from vacation I'll go check it out.

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post #14 of 19 Old 02-27-2008, 10:01 AM
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Just wondering

Quote:
Originally Posted by sbeau1960 View Post
The 919 and 599 side panels are not interchangeable, but there are nice carbon fiber ones available for the 919, see my pics below. Here's the thread where they were discussed: https://www.wristtwisters.com/forum/s...ht=side+panels

http://i196.photobucket.com/albums/a...s/DSC01067.jpg

http://i196.photobucket.com/albums/a...s/DSC01077.jpg

You can see the 599 side covers are a totally different design...http://i196.photobucket.com/albums/a...DSC01197-1.jpg


Don't know that anyone has swapped a entire 599 to 919 front end, or that you'd want to, I'm thinking the 919 suspension is superior. The 599 guages and headlight are cool though, our fellow wristtwisters mod-a-aholic, 9nineteen, swapped a 599 headlight to his 919, looks very great.
https://www.wristtwisters.com/forum/s...=599+headlight
sbeau,
Thks for the reply I am aware that the two side covers are different but I guess the ? should have been any chance you might see what it would take to consider mounting a 599 side cover to a 919 the shape is very different but the space looks similar?

This Pic is off the web site of an Italian parts promoter I just assumed that these inverted fork tubes were stock, but I haven't research to find out the newest 599 front forks available from the dealer. It's just an arrant thought anyway.
Attached Images
File Type: jpg Hornet599.jpg (60.0 KB, 4 views)

YAAWZZU!!!

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post #15 of 19 Old 03-20-2008, 10:03 AM
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I love RD350s and 400s. Back in the seventies when I was in college I had a motorcycle repair business. A few customers had RDs and I enjoyed working on them and test riding them. I was out on Central Avenue in Yonkers with a purple RD350 I had just finished tuning up. I'm sitting at a red light when a Harley pulls up next to me blipping the throttle making fun of the "smoking little bean-oil burner". He had straight pipes and from the lumpiness in the idle, probably an aftermarket cam. The light turns green and we both nail the bikes. It was tough to keep the front end down in first and second and I had to shift by watching the tach because those obnoxious straight pipes drowned out the Yamaha.

Well, the little "bean-oil burner' smoked Mr. Tough Guy, and I think he was so humiliated he wouldn't pull up next to me at the next light. He stayed a good 50' back and every time I turned around to look at him, he would look away.

Those bikes were alot of fun.

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post #16 of 19 Old 03-20-2008, 10:14 AM
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For some reason Harley guys think their bikes are faster than sport bikes in a strait line.

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post #17 of 19 Old 03-20-2008, 10:34 AM
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Hey Chris: Did you see this RD400F Daytona Special on eBay? One of the FZ1 board members had it for sale.


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post #18 of 19 Old 03-20-2008, 10:57 AM
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Quote:
Originally Posted by MisterMike View Post
Hey Chris: Did you see this RD400F Daytona Special on eBay? One of the FZ1 board members had it for sale.

Hi Mike. I did see it, but blocked out where it was located and the sale price lest I be tempted. Bringing home another motorcycle would probably push my wife over the edge. I'd love an RD, a CBX, a ZX14,.......I could name a bunch more but why torture myself.

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post #19 of 19 Old 03-22-2008, 08:32 AM
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Quote:
Originally Posted by MisterMike View Post
Hey Chris: Did you see this RD400F Daytona Special on eBay? One of the FZ1 board members had it for sale.

]
I remember sitting on a brand new Daytona back in the 70's and just wishing and wishing I had the yingum to get it.

I said I never had much use for one.
Never said I didn't know how to use it."
Mathew Quigley
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