Very hard to pull start and electric start - Honda ATV Forum
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post #1 of 18 (permalink) Old 08-05-2019, 07:17 AM Thread Starter
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Very hard to pull start and electric start

2011? 250 recon es in otherwise very good condition. Fixing it for a friend. Extremely hard to pull start. Rips-your-arm-off hard. Electric starter can't do it either. The carb was trashed internally from gas sitting in it so it won't run for more than a few seconds but it will run. But wow this thing pulls hard. Get it past the compression stroke and you can pull it ok. As far as I know it has never been apart so the timing is unlikely to be off. I've looked at the service manual and this thing does not appear or mention having a centrifugal compression release for starting. Am I correct? Have any of you seen carbon buildup so bad that it causes this problem?

Last edited by freakdaddy; 08-05-2019 at 07:29 AM.
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post #2 of 18 (permalink) Old 08-05-2019, 10:02 AM
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Had a pressure washer do that, exhaust valve stuck and bent push rod. No help I know

Did you remove the plug and pull the rope starter? Cylinder full of fuel? Crankcase full?

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post #3 of 18 (permalink) Old 08-05-2019, 10:06 AM
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what is the compression reading on things?
and I would never say anything cannot jump time, it can happen on newer and used atv's
you have not listed hours or miles on the motor(or know if it has tracking of them)
but timing chains can stretch and thus jump time and MANY honda models are even known to do so!
so, maybe start checking timing and see where its at from there!
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post #4 of 18 (permalink) Old 08-05-2019, 12:44 PM Thread Starter
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My gauge won't fit it. I have to get an adapter.
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post #5 of 18 (permalink) Old 08-07-2019, 04:52 PM Thread Starter
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Got the adapter. Measured 120psi. Haven't touched the timing yet.
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post #6 of 18 (permalink) Old 08-07-2019, 05:48 PM
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that motor has a automatic decompression release built onto the cam.
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post #7 of 18 (permalink) Old 08-07-2019, 08:09 PM
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Quote:
Originally Posted by shadetree View Post
that motor has a automatic decompression release built onto the cam.
is it not working, causing a problem, with to much pressure? i dont know this territory yet.

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post #8 of 18 (permalink) Old 08-08-2019, 07:15 AM Thread Starter
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Quote:
Originally Posted by shadetree View Post
that motor has a automatic decompression release built onto the cam.
Ok... So the next step is to pull that cam?m I couldn't find a service manual for that exact model but I can't find any info or diagrams showing the auto compression release.
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post #9 of 18 (permalink) Old 08-08-2019, 08:20 AM
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Quote:
Originally Posted by freakdaddy View Post
Quote:
Originally Posted by shadetree View Post
that motor has a automatic decompression release built onto the cam.
Ok... So the next step is to pull that cam?m I couldn't find a service manual for that exact model but I can't find any info or diagrams showing the auto compression release.
once you see the cam ?, you will see how its made onto the end of the cam. look your year/make/model up on partzilla.com, and have a look at the cam, then you will see what I am talking about :-).

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post #10 of 18 (permalink) Old 08-08-2019, 08:02 PM Thread Starter
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I looked at the pic. Nothing real obvious that looks like it's a compression release. Guess I see better when I get it apart.
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