Thread: compression on gp 1200 2001
06-12-2007, 09:02 AM #1
compression on gp 1200 2001
guys whats a good compression for a (stock) gpr 1200 2001...
found a mint 2001 for the right money and want to test comp before i part with money..
thanks as always paul..
sorry just saw i missed the "R" off the title
06-12-2007, 09:18 AM #2
06-12-2007, 10:30 AM #3
06-12-2007, 10:32 AM #4
on the 1200's the #3 is not staggered for compression.
I am not sure what a "wear" number or acceptable comp would be. From memory mine was 118 when i bought used with 60ish hours.
06-12-2007, 10:37 AM #5
06-12-2007, 11:15 AM #6
- Join Date
- Jul 2006
Like it really matters? You know your gonna have that other engine of yours slapped in there in no time anyway. My main question is will it be a single or a tripple when your done?
06-12-2007, 12:43 PM #7
i can answer that for him as he talked non stop about it last night at the pub.... ..man good job i was getting drunk..
single pipe all the way due to the abuse it recives wave jumping,his mate mangled a set bad jumping..
06-12-2007, 12:49 PM #8
120 psi, and about 5psi less after manually opening the powervalves.
this is a good indication the the powervalves are all going up and down!
(Just grab the little wheel on the back and turn it, and disconect the little triangular 3 pin plug by the p.v motor).
I know you and most people here probably know, but with the Yams, if you hold the stop button down when you hit the start button, it stops the spark to the plugs-saves trying to ground them!
Theres a cracking one on Ebay now-70 hours, roller trailer for £2650. Somebody is going to get a bargain. If I had'nt just spent 32k on a new boat, (and if my wife was away) i'd buy it myself!
06-12-2007, 12:53 PM #9
06-12-2007, 12:58 PM #10
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