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Thread: 2001 raptor 660 won't start Reply to Thread
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  Topic Review (Newest First)
08-11-2019 11:35 PM
QuadManiac His post is already almost two weeks old... I suspect he's gone!
08-11-2019 04:45 PM
desertboy13 Hey Cdubman
Start ur own separate thread that way
Its get attention and doesn't get lost in someone 6

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07-28-2019 03:28 PM
Cdubdmann86
Raptor 660 no start

I have an 05 Raptor 660 I replaced battery,Starter,Solenoid switch won’t crank..When I put screwdriver near solenoid it act like it wants to crank but won’t start...What is my problem?
06-02-2017 11:35 AM
Dale_W hi Rod. I see you are pretty new here. Welcome to the group. The gang here has helped me a lot. Keep up to speed on how things are going.
There is a lot of knowledge here and people willing to help.
06-02-2017 12:48 AM
Rod38801
Quote:
Originally Posted by DEZPERADO View Post
I suspect you have a intake valve problem if it blows the carbs off. A valve that doesn't close, is bent, or stuck will allow compression to blow the carbs off. I would check compression again and compare it with your manual. If you have a spark plug air fitting, presurize the cylinder at TDC and listen at the intake for leakage.

WELCOME TO THE FORUM.
I'm going to try this tommorow I'll keep you guys updated.....

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06-02-2017 12:45 AM
DEZPERADO I suspect you have a intake valve problem if it blows the carbs off. A valve that doesn't close, is bent, or stuck will allow compression to blow the carbs off. I would check compression again and compare it with your manual. If you have a spark plug air fitting, presurize the cylinder at TDC and listen at the intake for leakage.

WELCOME TO THE FORUM.
06-02-2017 12:16 AM
Rod38801
Quote:
Originally Posted by Sixpack577 View Post
Sometimes engines wear out, without breaking anything.
Sometimes a crack or bad gasket causes compression loss.
A valve can even be stuck open.
These all can prevent it from running, yet the engine will still turn over.
Weird thing is that if i keep trying to crank it it'll build up so much compression that both the carbs will completely blow off the boots

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06-02-2017 12:14 AM
Rod38801
Quote:
Originally Posted by Sixpack577 View Post
Have you checked the compression?
Yes it has compression

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06-01-2017 05:51 PM
Sixpack577 An engine needs 3 things to run.
Fuel, spark, and compression.
You have fuel, as you put it directly in the cylinder. That should have been enough make it attempt to start, backfire.
You have a spark timed correctly.
Which leaves compression.
Can be a cheap gasket or full rebuild.
06-01-2017 05:47 PM
Sixpack577 Sometimes engines wear out, without breaking anything.
Sometimes a crack or bad gasket causes compression loss.
A valve can even be stuck open.
These all can prevent it from running, yet the engine will still turn over.
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