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TOPIC: Whymee's RT3 Resto Mod.

Whymee's RT3 Resto Mod. 19 Dec 2017 22:42 #1

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Gentleman.

I am going to document my 1973 RT3 360 being brought back to life. Then I will decide which way this resto is going to go. Enjoy...

On 12-19 I bought this 73 RT3 from Craigslist in Pennsylvania. Been looking for one for quite some time. Most did not have titles or were priced way out there. This is what I am starting out with.



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1974 Yamaha TY250
1973 Yamaha RT3 360
1972 Yamaha LT2 100
2018 Husqvarna TC250
2018 Pitster Pro LXR190
1983 Honda CR480
1983 Honda CR250
1983 Suzuki RM250
2017 Yamaha FZ-10
1997 Honda PC800
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Whymee's RT3 Resto Mod. 19 Dec 2017 23:26 #2

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I have seen some amazing restorations on this site. I do not see how or where some peeps come up with NOS parts that have been out of production for years. This is truly an art I am sure. Or a disease!

This machine will be rebuilt to be a fine example of the breed, not over restored. Rebuilt & massaged my me & me only. No parts will be sent out to be refinished. I will do all the work myself. Polishing, wiring, painting and media blasting will be done in house. Exceptions are cylinder boring & crank rebuilding. I am not a professional. Just a West Virginia woodtick looking to get his wintertime rocks off with a yearly restoration of a machine that means something to me.

During this process if someone needs clarification of how I completed a process, feel free to ask & I will go in depth. Sometimes I gloss over the mundane tasks.

Yesterday I took close inventory of what I will need initially, to start & ride this beast. Items include, but not limited to: ignition switch, battery, oil pump cable, shifter, air filter, seat cover and foam, and a lot of small parts. Especially rubber grommets. All parts ordered from either my local Yamaha dealer or Fleabay.

The bike has not been fired in 15 years. Sat in a barn. All rubber is essentially shot. Although even with a lack of an ignition, it still has spark. Good compression too. The seat was upholstered with a darn inner tube. Creativity at its best.

I proceeded to remove all the parts that one usually removes to give a good indication of what I need to purchase to complete the task of bring this beast back to life. No real surprises. Although the carb is in great shape. Clean as a whistle. I do have to replace the o-ring that surrounds the main jet.

Pulled the flywheel off and everything looked good. I moved to the oil pump & noticed the cable had broken and all the oil lines will need replaced. Will replace them with cheap vinyl tubing for the initial phase of this project & then get the good stuff at a later time.

So here I wait for parts to come in. My best friend for the next couple weeks will to be the little brown truck...

Merry Christmas to all.

Stan
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1974 Yamaha TY250
1973 Yamaha RT3 360
1972 Yamaha LT2 100
2018 Husqvarna TC250
2018 Pitster Pro LXR190
1983 Honda CR480
1983 Honda CR250
1983 Suzuki RM250
2017 Yamaha FZ-10
1997 Honda PC800

Whymee's RT3 Resto Mod. 20 Dec 2017 00:59 #3

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Wow, love ya story & will watch for updates. I worked on them from new [worked for the local yamaha agent] & 'just me' i can't get too enthusiastic about restoring to 'as new' condition but get my kicks from mainly from getting 'old dogs' running good as new but still looking 'Rat'. Probably equates to being a lazy bugger lol. Have a shed full of 360's, all runners but some incomplete a like 2 mag covers between 4 etc. Admire the hell out of you guys that to better than new resto's & also resto's to a tidy usable level as sounds like yours will be. I see ya onto the little Oring & i'm sure you'll do the mag nut up bloody tight--or bad things happen. Sorry--wine on an empty tummy & i'm talking crap. Have a good Xmas.

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Whymee's RT3 Resto Mod. 20 Dec 2017 07:05 #4

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Great plan!!! :likey

Looking forward to the updates on this one... :Subscribe

P.S. the inner tube cover may have been a blessing... so many of the seat pans are completely destroyed when the foam gets soaking wet from water getting through the cover.

P.P.S. the CDI on that model has what may be a "fragile" pickup coil that is hard to find and very expensive if you do manage to find a new one... One of the members here with lots of experience on those ignitions says to be cautious of rust/debris inside the flywheel on a bike that has been sitting as it can destroy an otherwise good pick up coil as the engine turns over...

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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250

Whymee's RT3 Resto Mod. 20 Dec 2017 10:32 #5

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AS a matter of fact I am in the middle of tweaking the stock seat pan. What a mess. But is usable after some hammer & dolly work, welding, media blasting & painting. Sure could be worse.

Thanks for the info in the pick up coil. Already been in there & all looks good. Our bikes have a CDI? Really? B)
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1974 Yamaha TY250
1973 Yamaha RT3 360
1972 Yamaha LT2 100
2018 Husqvarna TC250
2018 Pitster Pro LXR190
1983 Honda CR480
1983 Honda CR250
1983 Suzuki RM250
2017 Yamaha FZ-10
1997 Honda PC800

Whymee's RT3 Resto Mod. 20 Dec 2017 10:49 #6

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I think you will find it has points and condenser.
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Whymee's RT3 Resto Mod. 20 Dec 2017 10:51 #7

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Yes, my bad... points and condenser. Posting when I'm still half asleep is not a good idea! :Ugh

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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250

Whymee's RT3 Resto Mod. 20 Dec 2017 14:13 #8

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MarkT wrote: Yes, my bad... points and condenser. Posting when I'm still half asleep is not a good idea! :Ugh

Unlike you, man! You are 99% spot on and trustworthy. Have some coffee and get back on here! We believe in you!

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Whymee's RT3 Resto Mod. 20 Dec 2017 20:22 #9

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Welcome to the Yamaha Enduro community.

I will tell you this.

DEET saves you money..

ENDURONUT saves you an incredible amount of "tolerance" when it comes to cylinder machine work..

KDI reproductions is state-of-the-art.

I assure you - you'll never be disappointed.

asco

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YAMA-LAND RESTORATIONS
CASTAIC MOTORCYCLE SALVAGE
MINIBIKESERVICE@AOL.COM CUSTOM MINIBIKE (RALPH) 1978 DT100 (ELLEN) 2002 110cc XR PAX RACING 1971 125cc AT1-C (DOROTHEA) 1971 175cc CT1-C (ELSA) 1971 175cc CT1-C (BRANDY) 1970 250cc DT1-C (MONICA) 1974 DT 360cc (CROSSEYED MARY)

Whymee's RT3 Resto Mod. 20 Dec 2017 21:51 #10

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MarkT wrote: Yes, my bad... points and condenser. Posting when I'm still half asleep is not a good idea! :Ugh


Actualy a late model cdi mag off a very late "70's DT250 or 400 would be a realy good update to help with kick back etc as retard off to start within the cdi. early ones as mentioned about the pulser coil are a good one to bypass & go for much later. Think 250's stayed points till late "70's then went to similar or the same a DT400's, whatever they all swap over as complete set ups [don't they?]. I had a later set up on my RT2 & never gave a problem. Later flywheel is steel not alloy but about the same weight.

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