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I'm going to install a head I bought a couple of years ago.Do you have the stock number from mcmaster?I ran into the same hassle w/pro-tec as you did.Thanks.

contact cement cleaner-water based and works like a charm.cheap,too,and at most hardware stores.

Just a quick shout out to 'virgin'-great guy,great businessman.Thanks alot!:woot:

Have to say thanks for the info-I used a digital caliper to measure my head(the one for the ski,that is) and the sizes came out to be exactly what 'crockett had posted.The trade size/number is -153. Thanks to all!

:bigok:

Put a test lamp between the pos. term. on the starter and a good ground while hitting the start button.If the lamp illuminates,the problem may be either the starter or the ground lug on the rear of the starter.

It's not a c-3 head,though,it's a rec. head.I believe it takes the larger thickness o-ring(according to pro-tec's cat.)The head has no o-rings around the cooling jackets.This is new to me so I appreciate any help!

Title says all.I need to get new o-rings for my pro-tec yam. 701 head.I just found out that if you want pro-tec to send them to Canada,you have to fill out some sort of credit application/approval.Can anyone tell me who you deal with for these?Thanks!

Thanks for the info!I wanna try it out this weekend!

So here's the deal...I bought a used pro-tec head(rec.) with a girdle kit,and I need to know a couple of things: (1)Do I have to order new o-rings from pro-tec,or can I use proper sized automotive-style ones (2)What type of sealant is recommended for use around the water passages...

My mostly stock '96 does 55-60 regularly.(In bed of my f-one-fiddy)!

I've had the same problem with everything from my roundnose to a 'jammer.The tether/kill switch has 2 sets of contacts-one grounds the engine so it doesn't run,and the other completes the circuit for the starter.The switches are cleanable/repairable,and I have even used springs from bic lighters...

Great video!Do you have straps or are they footholds?

man,I love helmet cams!I can't believe how big riding still is in other places.It's all but extinct here-not sure if it's the lack of waves......or warm weather......or sunshine.....or all the unemployment.....or the young getting old way too fast.....you guys have it made-I'm so jealous!

I found this is my pile of 'work' shirts-couldn't help but wonder?:biggrin:

I sent an e-mail(2) to coffman's earlier this week,but,still no reply.Jetting is kind of touchy,so I don't want to mess it up. Oh,by the way,slopokegtp,didn't you just blow up yer YZF?Not an issue with exceeding the carrying capacity,I hope!

well,I finally got a ride w/my new coffman's lightning pipe,as I was dissappointed to say the least.It was bogging and stuttering like the was no tomorrow.I was under the impression that I didn't have to re-jet.Am I wrong?Is jetting necessary?If so,what should I go with?It is a stock twin-carb...

I learned to do a full sub about a year after I bought my roundnose,and after riding a 300sx for 4 or 5 years,it was well worth the full purchase price.I know the feeling-congrats!!!:Banane01:

Thanks a bunch for the replies-now I have somewhere to start! :arms:

Oh,crap.Yuo mean I have to pull that thing off again and check the ports?:banghead:What am I looking for?