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YB9 SRi Fuel injector number

 
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Fulvia-hf



Joined: 27 Mar 2017
Posts: 20
Location: Netherlands

PostPosted: Tue May 18, 2021 7:21 am    Post subject: YB9 SRi Fuel injector number Reply with quote

hello Bimota enthousiasts,

A while back I was very glad to be able to use the knowledge in this Forum with some fueling issues I had with my SRi. Unfortunately they are not solved but I stored this bike to do a quick resto in between and then came a second and third and I more less forgot about it.
Until last month. I have made it run but the plugs wet after a few seconds and the engine runs very rough. I suspect the fuel injectors to be either dirty or faulty.
The bike never run with de EFI fitted during my custody as it came with Keihin CR 33 racing carbs. After I found an injector rail and filter box on Ebay I was able to complete the OEM installation.

My Question is this: what is the p/n of the original YB9sri fuel injectors so I can check if my bike has the correct ones?

Cheers,

William


Last edited by Fulvia-hf on Fri May 21, 2021 11:03 am; edited 1 time in total
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phil-short



Joined: 30 Jul 2012
Posts: 189
Location: Dublin,Ireland

PostPosted: Tue May 18, 2021 6:17 pm    Post subject: Reply with quote

Injector p/n is 503406310

Full spare parts catalog here
file:///C:/Users/rickgrimes/Downloads/Bimota%20Spare%20Parts%20catalogie_YB9_SR-SRI%20(2).pdf

2 queries maybe relevant but I don't know.....

when it was converted to carbs was the ecu changed to suit them, as in an ecu from the SR model or a Yamaha thundercat?

If not try raising the potentiometer slightly to lean up the mixture. Might help, worked on mine.
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Fulvia-hf



Joined: 27 Mar 2017
Posts: 20
Location: Netherlands

PostPosted: Tue May 18, 2021 7:10 pm    Post subject: Reply with quote

Hi Phil,

Thanks for your reply. It seems that my injectors are different.
I cannot open your link as my computer thinks it is a virus.
My injectors have number Bosch 0280150701. Are they optional of just wrong?
If I google these I get BMW M3. This is a 2300CC 4-cylinder car. I know the size of the injectors is not the whole story. It is also the time the injector is held open but I might explain the richness and wetting if they turn out to be incorrect.

Cheers,
William

I happened to have a parts cataloque and just found out that 0503406310 is clearly a Bimota P/n. No Bosch number.
I tink the only solution is if someone would have a look at their injectors and copy the number for me.

Thanks in advance
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phil-short



Joined: 30 Jul 2012
Posts: 189
Location: Dublin,Ireland

PostPosted: Thu May 20, 2021 4:08 pm    Post subject: Reply with quote

I have my bike booked in for a service and disc replacement in about 3 weeks time so I can ask the lad doing it to see if he can see the injector part no. when he has the bodywork off. Can't remember how visible they are even with the airbox off but will check then if you can wait that long?
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Fulvia-hf



Joined: 27 Mar 2017
Posts: 20
Location: Netherlands

PostPosted: Fri May 21, 2021 11:17 am    Post subject: Reply with quote

Hi Phil,
Yes please!
Unless another forum member can reach his injectors sooner.

The number on the injector is easily readable, I think even with the filterbox on.
See this link for a picture: http://astragal.co.il/Fuel-Injectors/71396-GT-1x-NEW-GENUINE-BOSCH-0280150701-FUEL/

I have had the Bosch 280150701 fitted to my SRi checked by a specialist as I suspected they would be either dirty or just worn. They turn out to be perfect. Now my only hope that they are the wrong type.

Cheers,

William
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phil-short



Joined: 30 Jul 2012
Posts: 189
Location: Dublin,Ireland

PostPosted: Thu Jun 10, 2021 7:36 pm    Post subject: Reply with quote

Hi William, have the bodywork off at the moment but with only the smaller air box off I cant see enough of the injectors to get a number for you.The larger back air box is too much in the way and I am afraid I don't fancy taking it off as it is a worry to me when putting it back on that all 4 airway sleeves are seated evenly so sorry about that. I am a mechanical klutz with limitations I am afraid!
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