wont go over 2400RPM on water

[tengals123]

Re: wont go over 2400RPM on water

sorry just to clarify, when i say splits, i mean if its primary pickup at 20% and max spark another 40%, that means at approx. 60% throttle movement, im at max. spark and the rest is carbs only.<br /><br /><br />cheers

 

[AndyL]

Re: wont go over 2400RPM on water

It really sounds like you are making progress in the right area. A full load sea test should confirm.<br />Best of luck and will be interested in the results.<br />Andy

 

[tengals123]

Re: wont go over 2400RPM on water

thanks ANDYL, i hope to test in water again tomorrow.<br /><br />cheers

 

[tengals123]

Re: wont go over 2400RPM on water

OK, Major update***<br />I took it down to the water today, backed the trailer in and left the boat attached to the trailer.<br />Everything runs great, BUT.......<br />my max RPM at WOT is 3500-3600<br /><br />Will this increase when the boat is moving? or have I still got work to do?<br /><br />cheers

 

[tengals123]

Re: wont go over 2400RPM on water

bump on this...please<br /><br /><br />cheers

 

[tengals123]

Re: wont go over 2400RPM on water

ok, tested again. Problem is once i hit max spark and open the carbs the last 40%, the butterflies open fully but i do not get an increase in RPM.<br /><br />does anyone know what this means?<br /><br />cheers

 

[tengals123]

Re: wont go over 2400RPM on water

bump again????<br />???<br /><br />cheers

 

[Laotzu]

Re: wont go over 2400RPM on water

Not to beat a dead horse, but have you pulled the plugs?? Mine also had no problem with momentarily higher rev's in a tank at the shop.<br /><br />Jerry

 

[tengals123]

Re: wont go over 2400RPM on water

I have checked the plugs with a timing light at idle and wot not running though.<br /><br />cheers

 

[johnwilli]

Re: wont go over 2400RPM on water

Pull your plugs and read the color. Dark brown to tan and wet with fuel you are OK. Clean or no color to gray is probably water drowning your spark. Just a thought. You need to trace the spark to the end of the plug after the engine runs under load.

 

[johnwilli]

Re: wont go over 2400RPM on water

Pull your plugs and read the color. Dark brown to tan and wet with fuel you are OK. Clean or no color to gray is probably water drowning your spark. Just a thought. You need to trace the spark to the end of the plug after the engine runs under load.

 

[tengals123]

Re: wont go over 2400RPM on water

I have checked the plug condition and all is good except one which is a little cleaner than the others. Not much just a bit. Cab you clarify 'You need to trace the spark to the end of the plug after the engine runs under load.'<br />Not sure what you mean there?<br /><br />cheers

 

[mccrea]

Re: wont go over 2400RPM on water

sounds like an upper high speed stator has bit the dust / i was having exactly the same problem/ they cost about 150 dollars/ but not hard to install/ lol<br />mike