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Old 07-19-2015, 05:20 PM
Briggs8Stratton Briggs8Stratton is offline
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Default Briggs raptor

Hi everyone,quick question: I am possibly going to buy a briggs raptor, and I don't know how to start it. There is no recoil pull starter. So, how would a person start one that looks like this:
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Old 07-19-2015, 05:34 PM
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There is an adaptor piece that goes on the square end there called a starter nut. so you can use a racing starter. I would think you could just bolt up a regular Briggs pull starter.
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Old 07-19-2015, 05:39 PM
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They use a electric handheld starter just Google junior dragster starter to see them. My phone won't upload the pic right now.

But you should be able to switch it back to pull start.
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Old 07-19-2015, 05:56 PM
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Quote:
I would think you could just bolt up a regular Briggs pull starter.
Quote:
But you should be able to switch it back to pull start.
Possibly, as long as compression release is operational.
Something to investigate.
If compression release has been removed, or otherwise disabled, then recoil will be useless.
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Old 07-19-2015, 06:10 PM
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Compression release has to do with the cam right? To slightly open the valve for start up? So if it is removed he would have to get a different cam to use the pull start?
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Old 07-19-2015, 06:11 PM
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I have a gold raptor and cooked a 1/2" drill trying to start it. Too much compression i guess
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Old 07-19-2015, 06:15 PM
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You can buy a pull starter and start the engine if it is stock with no problem... I actually found an old lawn mower and cut the pull starter off it when we use to race those engines...
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Old 07-19-2015, 06:15 PM
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I found this:
"Most of the overhead valve engines have a compression release feature which allows for the starter to not have to work hard to crank the engine. It's a slight raising, or bump, on the lobe of the camshaft. What it does is open the valve a little early to allow excess compression to bleed off. At speeds over 300rpm, the tappet just sort of floats over this bump and it has no effect on engine performance. But at starting speeds, it's essential or the starter just can't turn the engine over"
Here http://pkjones.hubpages.com/hub/Hard...tratton-engine
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Old 07-19-2015, 06:22 PM
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Point is, the raptor is an old engine.
There is a good chance that CR has been removed and should be verified before purchase.
Electric starters can be expensive. Be forewarned.
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Old 07-19-2015, 08:16 PM
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None of our Raptor racing engines had a compression release and were all pull started... now, if you try that on a OHV you are asking for trouble, but on a regular raptor... it should not be a problem...
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