Compression test a GTIR...

Now, its been just over 2 years since I've owned a pulsar so forgive me.

Last week I picked up a slightly poorly (now fixed) but really tidy gtir what happened to come uplocally through my trade.


As part of the course I want to do a compression test, just cause I like things to be 'right'  - Remind me... It's upto running temp, all 4 plugs out, unplug coil, and WOT to get correct results on these isn't it? And above 150 psi ish?

Thanks  

Ye should all be about the same, usually abour 160-165

Compressions depend on comp ratio but assuming its stock then anything over around 145psi is good ^^^as above cylinder balance is more important because if one cylinder is say more than around 8% down on other 3 then there could well be a problem with that cylinder. Also if compressions are too high (above 180ish)this can also indicate a problem.

Unplug injector relay also as that will stop fuel being chucked into the cylinders whilst cranking her over

Cheers gents.

Injector relay.... In the junction box under bonnet just in front of offside strut top?

Yep the silver box with multiplug going into it, just pull the plug out and injectors won't work
That's the resistor pack

Nearside ? The resistor pack