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Fuel injection Trouble shooting assistance

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05 Nov 2021 05:39 #857434 by diego092409
Replied by diego092409 on topic Fuel injection Trouble shooting assistance
Thanks for the lead on the substitute fuel injectors.  May go that route.  I will check that they are getting signals when I have it apart; however, the injectors are still in the shower head position fogging out the neighborhood when I start the bike up and need pulled.  Thanks for all the great information.  one of these days I will get her running...

1982 KZ1100 B2 - 'Old Red' kzrider.com/forum/11-projects/601185-gpz-1100-resto-mod-old-red
2015 BMW K1600GT
2017 KTM 690 Enduro R
2018 Kymco Spade (wife's)

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05 Nov 2021 20:04 #857481 by Highway Magician
Replied by Highway Magician on topic Fuel injection Trouble shooting assistance
No problem.  Take a look at the pics.  The injectors I used are Carquest #57519, made by Borg-Warner.  They are $56.99 and
online discount coupons are available (20-25% off).

Motorcycle builder since 1973. Master Tech. Current bike: 1982 GPZ1100B2.
The following user(s) said Thank You: diego092409

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01 May 2022 16:09 #866496 by diego092409
Replied by diego092409 on topic Fuel injection Trouble shooting assistance
I swapped out the two suspect injectors. Have all of the cylinders running now. Having issue with the engine running right without it wanting to rev sky high or stumbling. 

I think I have idling working by adjusting the throttle position sensor but when I open the throttle, it stumbles and send white smoke out tail pipe.  

I have an adjustable regulator on it with vacuum port and a pressure gauge. The gauge reads the appropriate psi at idle but when I open the throttle the needle dips. 

I have a 660 ohm resistor on the air temp sensor and the air temp resistance is correct as well as the engine block temp is correct.

Am I just seeing residue from the bike sitting dormant for so long and having new piston rings installed?

1982 KZ1100 B2 - 'Old Red' kzrider.com/forum/11-projects/601185-gpz-1100-resto-mod-old-red
2015 BMW K1600GT
2017 KTM 690 Enduro R
2018 Kymco Spade (wife's)

Please Log in or Create an account to join the conversation.

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