Author Topic: r5 oil injection  (Read 295 times)

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Offline bluejean

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r5 oil injection
« on: August 16, 2022, 03:25:39 AM »
I have a 1971 Yamaha r5 350. The oil injection pump part number is 360.13101.01.00. I need to replace my oil pump. Can someone tell me what years will fit?

Offline [Arrow]

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Re: r5 oil injection
« Reply #1 on: August 17, 2022, 12:04:19 AM »
The 350A pump will fit straight on. It will have red paint ID and a 32 tooth gear inside. You will need to swap the 364 pulley for the R1 pulley that's currently on your YR5 pump.

What's the issue with your pump requiring a replacement?

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« Last Edit: August 17, 2022, 12:08:01 AM by [Arrow] »

Offline bluejean

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Re: r5 oil injection
« Reply #2 on: August 17, 2022, 04:43:16 AM »
The shaft got scratched where the seal meets.

Offline [Arrow]

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Re: r5 oil injection
« Reply #3 on: August 17, 2022, 06:44:00 AM »
If that's the case you still have some options. Where abouts are you based?

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Offline [Arrow]

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Re: r5 oil injection
« Reply #4 on: August 17, 2022, 06:51:13 AM »
Can I assume that's its the part of the shaft behind the priming wheel? See photo attached. It's quite common given that the back of the shaft is exposed to the air and rust can creep along.

Also on this generation, the camshaft itself is bored all the way through then sealed with a resin plug. The age of them now, those plugs are starting to fail. Again there are options here too.

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« Last Edit: August 17, 2022, 06:59:20 AM by [Arrow] »

Offline bluejean

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Re: r5 oil injection
« Reply #5 on: August 19, 2022, 03:06:45 AM »
Yes and im in New Jersey

Offline Gr8uncleal

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Re: r5 oil injection
« Reply #6 on: August 19, 2022, 08:07:25 AM »
Ideally, #Arrow on this side of the pond can get you sorted. However, if you need someone closer to home, then I know of someone on the US based Yamaha Enduros forum who does the same sort of work.
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Offline [Arrow]

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Re: r5 oil injection
« Reply #7 on: August 19, 2022, 10:13:14 AM »
Yes, if someone close to home can sort it for you, all the better.

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« Last Edit: August 19, 2022, 03:27:56 PM by [Arrow] »