86 Honda Elite SR 50CC wont stay running

Trying to get your Spree/Elite to run, or run better? Post your questions here.

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Scoot0112
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86 Honda Elite SR 50CC wont stay running

Post by Scoot0112 » Sun Jul 28, 2019 5:10 pm

I'll try to do this the short version, we just bought a 86 Honda Elite SR 50cc We can get it started while holding the throttle but the second it goes to idle it stalls out.
Already tried;
Good Spark, drained the fuel and the oil and replaced, Cleaned the carb, Checked compression, the guy before us did the whole upper on it, Checked and cleaned out the air filter, we do know that it has a bad oil pump but we bypassed it by mixing the fuel to try to get it started and running.
We removed the air filter and got it to start and stay running for about a minute and then stalled back out and we had to start the whole process over again to get it started. It's almost as if it doesn't get enough air then gets too much.
Any help would be appreciated!
Thanks!

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Wheelman-111
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Re: 86 Honda Elite SR 50CC wont stay running

Post by Wheelman-111 » Sun Jul 28, 2019 5:37 pm

Greetings:

The Elite SR bowed in the U.S. after 1987 - check your model year again.

The P.O.'s top end job is suspect. What was the compression PSI?
Base gasket leaks, just for one example, can lead to all kinds of problems. So can crank seals. Also a reed valve staying open will make it impossible to get it to idle, but might start eventually giving throttle - look for a fracture or a reed that won't close. Air leaks anywhere will cause problems. There's a procedure for pressure-testing that requires a bit of work, but if all else fails...

Mix oil at 32:1. Otherwise you sound like you've done all you can.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
Still Seeking Red PCX-150
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox, Carb and Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 99KPH

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Scoot0112
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Re: 86 Honda Elite SR 50CC wont stay running

Post by Scoot0112 » Sun Jul 28, 2019 5:53 pm

Thank you. You are correct not an SR I was mistaken. We are going to Check all of that here in a minute. We also just went to get a new compression tester to verify for ourselves as the P.O. is the last to check it.

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bonesv
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Re: 86 Honda Elite SR 50CC wont stay running

Post by bonesv » Sun Jul 28, 2019 6:55 pm

What model is it? It can only be a spree or aero if it’s an ‘86 unless it’s an 80cc model or larger.
Honda Elite SR
Honda Elite-Dio ZX

Dio ZX Headlight/Disc Brake Mod: http://hondaspree.net/phpBB3/viewtopic.php?t=30861

Scoot0112
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Re: 86 Honda Elite SR 50CC wont stay running

Post by Scoot0112 » Sun Jul 28, 2019 7:08 pm

It's an 89 Honda Elite

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bonesv
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Re: 86 Honda Elite SR 50CC wont stay running

Post by bonesv » Sun Jul 28, 2019 8:10 pm

Scoot0112 wrote:
Sun Jul 28, 2019 7:08 pm
It's an 89 Honda Elite
that's what I thought..............
Honda Elite SR
Honda Elite-Dio ZX

Dio ZX Headlight/Disc Brake Mod: http://hondaspree.net/phpBB3/viewtopic.php?t=30861

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