Recent content by modz

i also have a 97 racers edge chassis 670 what info u need ?

check if your flywheel cotter key is broken. this will cause major ignition timing issues

i agree max 1250, set your digitron alarm at that and let off when it alarms.

I know its been a long time since iv e posted and left feedback. i figured it out last year.. thanks for all your guys input though.. the problem was tooo much compression. i spoke with a few well known engine builders and we concluded that there was around 16:1 compression.. lol.. i put in...

How do I monitor piston wash?,Pull the pipes and look in? What am I looking for?

Hi Dean, I have spoke with you last season about my modded 1998 mxz with a top end sputter if you remember,I installed 620 main jets in both carbs last season and the sputter disappeared. I want a good tune but i think im too rich even though my egts show ok. I am currently running half and...

So i got in touch with tom at mots machining and he said operating temp is 120-140. Im right in the middle. He wants me to put 520 or 540 main jets in it. He thinks it still too lean. He said not to trust the digatron. Ill give it a shot and see how it goes.

I had just relocated my coil after i bought it, it was mounted on a makeshift bracket off of an engine mount, i built a new bracket and mounted it on the bulk head, i inspected wiring when that was done? Im still leaning towards a thermostat, 127 degrees is too low maybe? im going to put one in...

Oh ya i forgot to say i talked to the previous owner and the last time he raced it in alberta beach he said it ran real good, when I test drove it before I bought it in april on the sturgeon it was sputtering, too lean I thought. I could not check egts becaause the digitron was broken. He told...

Hi, quys Thanks for the feedback. I am running brand new NGK race wires and ends, brand new (gapped) B9EG NGK race plugs (nice and tan), the egt probes are mounted 2" from exhaust ports, thanx deano ill give you a call and ill update the thread.

Ive got a 1998 MXZ with a highly modified engine. At wide open throttle engine sputters and looses a little power, when you let off intermidently backfires from exhaust? At part to half throttle it pulls real hard like it should. At first I thought it was a lean sputter but then I checked my max...

ya dude

i believe vp111 is designed specifically for snowmobiles, anyway i buy sunoco from mountain magic. he charges me 80 bucks for 20 litres, crazy hey!

wondering if anyone knows if there is enough snow in whitecourt to ride. my friends and i wanted to drive there from edmonton to check it out. dont want to get there and see no snow. so if anyone can let me know it would be great.

First what I would do is make sure to put NEW plugs in, possible that they are fouled up and your getting WEAK spark, I think your jets are not the problem, While running check if fuel is coming out of carb vents, This would indicate needles not seating properly, 130 psi compression sounds...