Custom/Hybrid 110-15psi on raider 1100

[Pete D]

Sorry for beginner question. I'm putting an 1100 raider in a blaster 1. The donor ski has 111, 112 & 115psi. Haven't been tested yet but seller tells me it run fine but was a bit smokey on the trailer. He said it clears on the water.

Can I get away with a hone and new set of rings or do I need to bore it out and get oversized pistons?

Or are these results good enough to just put the motor in and run it till it really needs it?

Thanks.


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[jetx]

Pretty sure triple cylinders run lower compression than a twin...I'm thinking your fine With those numbers

 

[Freakrider]

Yes I believe 120 is normal so you're not bad at all.

 

[DAG]

Run that bitch hard and dirty

 

[Pro-pulsion]

Also a general rule of thumb is if the numbers are all within 5% of each other, for example 112 is the standard, then 6 psi variation in either direction is good, some people will even allow 10%, even Yamaha but it is a built in decrease. Usually the lower compression cylinder is going to be on the PTO, the XL760 runs 150 on the front and 135 on the rear to reduce heat on that piston which is your 10% variation.

 

[vomitspot]

and the smoke is prob from the oil injector leaking
i wouldnt worry about it