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Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Wed Aug 15, 2012 11:29 pm
by martynkim
abreen89 wrote:Is carb clean cheaper in Tacoma in graham I pay 4+ a can
You want to debate the cost of carb cleaner? :confused:

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 2:01 am
by abreen89
martynkim wrote:
abreen89 wrote:Is carb clean cheaper in Tacoma in graham I pay 4+ a can
You want to debate the cost of carb cleaner? :confused:
No just trying to get in on your good deal. :thumbwink:

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 3:25 pm
by jmcginn68
bear was right,i put a better compression tester (the screw in hose type)+compression read 75 that seams low w new piston,rings,honing.ill clean carb better.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 3:31 pm
by fastplastic
u need to hold the throttle wide open when doing the compression test :nerd:

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 3:35 pm
by Bear45-70
Also after the first test, put a 1/2 teaspoon of 2 stroke oil in the spark plug hole, let sit for 10 minutes and do the test again. If the number comes up like 20 PSI this will tell if you have a real problem or the rings are just not seated yet.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 4:42 pm
by jmcginn68
i forgot to hold throttle open.i put regular oil in plughole+immidiatly cranked it+still 75 lbs.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 5:43 pm
by fastplastic
so with throttle open and oil your getting 75?

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 9:45 pm
by jmcginn68
no i never tested it wot it read 75 lbs. dry + wet with throttle closed.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 9:55 pm
by kingkamehameha
Should have searched how to do a compression test. Its real easy to do and if you took the 15 minutes to search and read we wouldnt be discussing this right now

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 10:17 pm
by martynkim
kingkamehameha wrote:Should have searched how to do a compression test. Its real easy to do and if you took the 15 minutes to search and read we wouldnt be discussing this right now

Easy on the noob, not everyone realizes that all the information is here.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Thu Aug 16, 2012 10:19 pm
by martynkim
abreen89 wrote:
martynkim wrote:
abreen89 wrote:Is carb clean cheaper in Tacoma in graham I pay 4+ a can
You want to debate the cost of carb cleaner? :confused:
No just trying to get in on your good deal. :thumbwink:

I "think" it is only about $2 for store brand carb cleaner at walmart.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Fri Aug 17, 2012 11:12 am
by fastplastic
jmcginn68 wrote:no i never tested it wot it read 75 lbs. dry + wet with throttle closed.
then I highly doubt there is an issue here.... retest with throttle open, but dollars to donuts says your compression is 115-125 all day long which is a good thing :thumbwink:

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Fri Aug 17, 2012 3:35 pm
by Bear45-70
There is no way the compression will jump 35 to 50 PSI from the throttle being opened.

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Sat Aug 18, 2012 1:50 am
by fastplastic
I miss spoke it won't be that high but Untill he retests we don't know what's going on at this point it could be a few different issues.....

Re: LOW COMPRESSION ON FRANKENSPREE

Posted: Sat Aug 18, 2012 1:54 am
by Bear45-70
fastplastic wrote:I miss spoke it won't be that high but Untill he retests we don't know what's going on at this point it could be a few different issues.....
Agreed